Select one: b. R-CH2-NH2 What is its formula? has a total valence state of 0 (3x(+1) for the hydrogen atoms; 1x(+3) for the arsenic(III) atom; 3x(-2) for the oxygen atoms = 3+3-6 = 0). Phexane = 400.0 torr at 49.6C. Element Rubber c. Srxn< 0, Hrxn < 0 Which one of the following is a strong acid? Yeah so fight Is equal to 0.74 two g. So let's recap we first of all balance the reaction equation and then I realized that we need to determine the limiting reactant here by comparing the mass of magnesium sulfur that can form when starting off with one g of magnesium hydroxide With the massive magnesium sulfate that can form when starting off with 0.605 g of um sulfuric acid. b. Hypothesis Attorneys may remove jurors via peremptory challenges. (You can see ect multiple answers if you think so) Your answer: Volumetric flask is used for preparing solutions and it has moderate estimate f the volume_ Capillary tube used in "coffee cup calorimeter" experiment: Indicator is used in "stoichiometry" experiment: Mass balance is used in all CHE1OO1 laboratory experiments Heating function of the hot plate is used in "changes of state' and "soap experiments_, 1 moleeuiet 1 Henci 1 1 olin, L Marvin JS 4h, A titration experiment is conducted in order to find the percent of NaHCOz In= baking powder package. pyridinium chlorochromate OH OH CO_, B) One of these two molecules will undergo E2 elimination "Q reaction 7000 times faster. 2 Select one: d. 8.23 1014 s-1 Select one: The original periodic table of the elements published by Dimitri Mendeleev in 1869 arranged the elements that were known at the time in order of increasing atomic weight, since this was prior to . e. its ability to catenate. b. Quick conversion chart of moles Arsenic to grams. Atomic weight is a weighted average of the mass of all the atoms of an element, based on the abundance of isotopes. So this she also for should also be made three to balance that. So here we see that mess of sitting bicarbonate cancels moles of sitting bicarbonate, cancels it molds of HCL cancels and we're left with 1.1 grands of HCL.. This means that its atomic weight is 58.85 g/mol, the atomic weight of cobalt. O c. the coordination number What new isotope is also formed? a. Arsenic is a metalloid, meaning it shares some characteristics with metals, and some with non-metals. O What other industrially important substances are produced in this process? d. 55.85 g e. Sodium, Na, Z = 11, The correct answer is: Bromine, Br, Z = 35, An atom of the isotope sulfur-31 consists of how many protons, neutrons, and electrons? Relative atomic mass The mass of an atom relative to that of carbon-12. Select one: To convert from grams to number of molecules, you need to use Determine the mass in grams of 3.00 10 atoms of arsenic. Select one: Reasons why recycling scrap copper is more sustainable than extracting copper from copper ores, Compose the cathode and anode processes of melt electrolysis of MgS, the total electrolysis equation, Compose the cathode and anode processes of electrolysis of an aqueous solution Li2SO4, the total electrolysis equation, Calcium hydroxide reacts with hydrofloric acid according to the following reaction. And we saw that in the case of the sulphuric acid um This limits the mass of magnesium sulfate that can form. c. Na+ and K+ So four. a. H3C-CH2-C-OH The density of "heavy water" at 20.0C is 1.1053 g/mL. a. Select one: Which of the following statements about an organomagnesium compound (RMgBr) is correct? a. c. 2n. COOH. A salt bridge carries electrons between the cathode and anode. So this limits the amount of product that can be formed. hence, mass of 1 atom of arsenic is 1.2441023 X 10-22. (You can select multiple answers if you think so) Your answer: Volumetric flask is used for preparing solutions and it has moderate estimate of the volume. 84.30 mmHg a. d. 59.1% b. So four there will be six most of the ratio produced and actually covered the most of HBO into grams as well. Here's how to use the information to determine the mass of a single atom. e. None of the above. N = A household receives a $145 electricity bill. a. Hexane-heptane Carbon monoxide is produced by incomplete combustion of fossil fuels. You can view more details on each measurement unit: molecular weight of Arsenic or mol The molecular formula for Arsenic is As. 12. a-How many atoms are contained in 28.0 grams of nitrogen? a. Right now, we use mole ratio, Which is one over one to calculate the number of moles of magnesium sulfite in this case. Which of these describes the amount of energy required to remove an electron from an atom? Write A/Z and symbol-mass format for an atom. Select all that apply OH, Question 5 The following molecule can be found in two forms: IR,2S,SR- stereoisomer and 1S,2R,SR-stereoisomer (OH functional group is on carbon 1) Draw both structures in planar (2D) and all chair conformations. 1.55 a. Si d. Hexane-diethyl ether e. 165.93 mmHg. e. > 1015 s-1, Calculate the frequency of visible light having a wavelength of 686 nm. a. What is the mole fraction of benzoic acid in the solution? 6.46 10-16 J c. As 10.0 lb . Select one: Which statement is false? Select one: And then multiply this with the molar mass of magnesium sulfate, 1 20.36 graham, sperm. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm3; the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm3. 2, 2021, thoughtco.com/avogadros-number-example-chemistry-problem-609541. Pycnometer bottle has special design with capillary, Which of the following molecules could be formed via PCC (pyridinium chlorochromate) oxidation of a secondary (29) alcoholin _ polar aprotic solvent? c. 5p The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Select one: e. H3C-CH2-O-H, A metal such as chromium in the body-centered cubic lattice has _______________ atom(s) per unit cell. e. one methyl group and one amide group. 0.022 M A mixture is a substance made by combing 2+ different materials in such a way that no chemical reaction . The objective of this problem is to get from a number of atoms, to a mass in grams. e. the atoms themselves, The correct answer is: the coordination number, Iron crystallizes in the body-centered cubic lattice. c. 2Na(s) + Cu2+(aq) Cu(s) + 2Na+(aq) Select one: a. vapor pressure is exactly 1 atmosphere. b. Explanation: In order to determine the mass of one atom of an element, you must determine its molar mass, which is its atomic weight on the periodic table in g/mol, and you need to know the relationship between moles and the number of atoms: 1 mol of atoms = 6.022 1023 atoms. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. B) Beaker #1 because it contains more moles of sulfur atoms versus the number of moles of arsenic atoms in Beaker #2. The correct answer is: 0.75 mol of a volatile compound in 750 g of ethanol, Which is a Lewis base? b. C6H14 b. two amino groups and one carboxylic acid group. 2 moles Arsenic to grams = 149.8432 grams. d. 5.44 mol So, we need to multiply here by the molar mass of magnesium sulfite Which is 1- 0.36 g per mole. b. In this context, it is the number of atoms in one mole of an element. a. R-CH2-C-NH2 34.0 mol Both atomic mass and atomic weight rely on the atomic mass unit (amu), which is 1/12th the mass of an atom of . b. Sulfur, S, Z = 16 I~s-latarCon d-clvboj tta ( s.64 Splcce sf (edius der s'tj p aAd J^j ferm cheje 20e sphere tLee ou f side +4t? The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. Neutron number plus atomic number equals atomic mass number: N+Z=A. b. polystyrene. (NA = 6.022 1023 mol-1) mass (m) = moles (n) molar mass (M) The molar mass of the element arsenic (As) is 74.922 g As/mol As. So we have HCL reaction with sodium bicarbonate, which is in a h C oath c 03 and this will produce carbonic acid, which will break down further. c. 3. Carbon monoxide is produced by incomplete combustion of fossil fuels. a. Boiling water to form steam So we calculated the massive magnesium sulfate that could be formed in each case. Molar Mass: the mass of one mole of an element CONVERSION FACTORS: 1 mole = 6.02 x 1023 atoms 1 mole = atomic mass (g) . The segment c. 9.73 kg what is the mass in grams of one arsenic atom. The axis of the first filter (filter A) makes an angle of 18 with the vertical and the axis of the second filter (filter B) makes an angle of 37 with the vertical. Right. D .Explanation: The correct option is (D) 1.24 X 10-22 g. The atomic mass of arsenic is 74.92 amu, 1 mole of arsenic atom has 74.92g weight. c. A salt bridge insulates the two electrodes. With uses and acid to neutralize excess stomach acid. a. d. lower right, upper left So let's substitute the values to calculate the number of models freak acid, 0.605g, divided by the molar mass of suffering acid, which is 98 08 Crimes Per Moon. b. Cl b. Starch And we can therefore say that um the so for a gas it is the limiting reactant in this case so so freak as it. 1 mole = 6.022 X 10 -23 atoms. Select one: If you look at . e. 79.6 g, What volume of ethanol (density = 0.7893 g/cm3) should be added to 450. mL of water in order to have a solution that freezes at -15.0C? e. 16 p, 16 n, 15 e, Which of the following is a metalloid? b. the liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a concave meniscus. What is the vapor pressure of a solution prepared by dissolving 0.75 mol of nonvolatile safrole in 950 g of ethanol (46.07 g/mol)? Atoms are the fundamental building blocks of all matter and are composed of protons, neutrons, and electrons. c. 6 a. Law -1.22 103 kJ/mol The correct answer is: the liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a concave meniscus. 0.75 mol of a nonvolatile compound in 750 g of ethanol a. BCl3 There are three on the product side. The September 30 bank statement for Cadieux Company and the September ledger account for cash are summarized here: BANK STATEMENT Checks Deposits Other NSF check $ 90 $ 2,850 Balance, September 1 September 7 September 11 September Dear staff, This is Yu.Zhou. e. C0.43H, How many grams are contained in a 0.893 mol sample of methane, CH4? a. There is insufficient evidence t0 support the null hypothesis (The following information applies to the questions displayed below.] Converting the mass, in grams, of a substance to moles requires a conversion factor of (one mole of substance/molar mass of substance). Select one: a. Given Cu2+(aq) + 2e- Cu(s) E = +0.34 V Al3+(aq) + 3e- Al(s) E = -1.66 V Na+(aq) + e- Na(s) E = -2.71 VWhich of the following reactions will occur? 81 from chapter eight in this problem were asked to, uh, her first. c. 4.4 10-4 Create your. So now we're going to wear a gun problem. b. e. None of the will occur. c. HIO3 Complete the table below:if " = ICu = 2 =)(- + f-")fnifn 2 3all steps1265Theorem:[Calculus, infnite power series for e ]e" =CXofinite number of terms from that infinite series, s0 uses polynomial Pn(z) of some degree - computer Or calculator can only usee" ~ Pn(z) = Ci= 1We will focus on getting good approximation of below:=e-1 ~ Pa(-l)plz)Pn(-1)rounded B(-I- 10000 +0.6321 0.0000 0.3679 0.5000 +0.1321 00S45 +20071 0.3665 3,00121+I 1+2+ 2*, (2 + 2 +*)4 1+2+ =(6+ 62+314 +1&quo. What is the mass of 6.02 x 10^23 atoms of arsenic? QUESTION 26 What is the mass, in grams, of one arsenic atom (NA- 6.022 x 1023 mol-1? Note that each element may contain more isotopes. CH;CH CH CH,CH-CH_ HI Peroxide CH;CH,CH-CHz HBr ANSWER: CH;CH,CH,CH-CH; HBr Peroxide cH;CH_CH-CH; HCI Peroxide CH;CH CH CH,CH-CH_ 12 Peroxide CH;CH_CH-CH_ HCI CH;CH-CH; K,O C2 CH;CH,CH,CH-CH; BI2 Peroxide CH;CH_CH-CHCH_CH; HBr Peroxide. (70 points) OH. d. Bismuth, Bi, Z = 83 e. 12, Which one of these choices is the general structural formula of an amino acid? a. KMnO3 e. 8. The cost of electricity is $0.126/kWh. You use the periodic table to look up the mass of each atom (H is 1.01 and O is 16.00). e. -B-B-A-A-B-B-A-A-B-B-, The correct answer is: -A-B-A-B-A-B-A-B-A-B-, What is the name of the C60 molecule that resembles an architectural structure called a geodesic dome? b. b. critical point. So according to this, balanced the chemical in question, we can't see the racial sodium bicarbonate with hydrogen With with hydrochloric acid is well, is one to work. e. Dehydrogenation polymerization, The correct answer is: Condensation polymerization. The September 30 bank statement for Cadieux Dear staff, This is Yu.Zhou. Use the molar mass as a conversion factor to get. Multiply by the number of moles we calculated. e. NH4+. c. Ester Select one: What is the mass, in grams, of #3.75 xx 10^15# atoms of gold? In order to do this, we can calculate the mass of magnesium sulfate that can be formed when starting off with one g of magnesium hydroxide. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Which of the following is not a polymer? d. Si a. upper left, lower right 1.48 10-24 g Discuss its associated religious connections. Select one: d. KBr b. neutron: 10n H Calculate the mass of 3.00 moles of CF2Cl2. Tritium decays by beta decay and has a half-life of 12.3 yr. Which is the strongest acid? c. ionic bonding Now first of all we need to check if the reaction equation is balanced or not and we can see that it's not balanced. (For ethanol, Kb = 1.22 C/m; density = 0.789 g/cm3; boiling point = 78.4C) The vapor pressure of a solvent over a solution decreases as its mole fraction increases. -$382 B. a. Polystyrene-polybutadiene e. 322 mL, What mass of water is required to dissolve 25.31 g of potassium nitrate (KNO3) in order to prepare a 0.1982 m solution? She has taught science courses at the high school, college, and graduate levels. And then we need to use the Mowlam. 2.74 106 s-1 d. Iridium, Ir, Z = 77 Brz HzO, Question Which of the following statements is true ? 0.1277 kg a. Which of the following is an example of an observation? Select one: c. Hexane-acetic acid O 5.48 x 10-23g O 33.0 g O 74.9 g O 1.24 x 10-22 g O 804 x 1021 g This problem has been solved! compounds are 2 or more elements that are chemically combined; ex-iron and water form rust. d-Calculate the mass in grams of one calcium atom. We still need to put it to in front of the water so that it's balanced on both sides, right? ThoughtCo. b-How many atoms are there is 20.0 grams of calcium? e. 82.6%. d. Mn2+ d. -1.42 103 kJ/mol c. 212 mL 27.2 mol Explanation: # 1 " mole " = 6.022 xx 10^23 # atoms. e. Coagulation, Enflurane is an effective gaseous anesthetic with relatively low flammability. a. Gases expand as their temperature increases because the gas molecules are moving more rapidly. A number of moles of magnesium sulfate is going to be the same as the number of moles of. Mass numbers of typical isotopes of Arsenic are 75. But that's not relevant to this problem and sodium chloride. Project The required tasks are detailed below: (1) Prepare vertical common-size income statements and balance sheets for both companies. Select one: Uh the mole ratio um in order to determine the number of moles of magnesium hydroxide from the number of moles off. d. Soccerballene d. Mn2+ and Ar a. Dehydration polymerization Solute X has a molar mass of 30 g/mol. What process involves the addition of a hydrogen molecule to compounds containing multiple bonds? d. Ether a. NaCl b. PVC The number 6.022 10 is called Avogadro number. b. (NA = 6.022 x 1023 mol ) Multiple Choice o o 1.24 x 10-22 33.00 < Prev 8 of 25 Next > J BABE SPECIK This problem has been solved! Does this match the bond order predicted by the electron-dot structure? e. -198 kJ/mol, What is the oxidizing agent in the (unbalanced) reaction?Cu(s) + H+(aq) + NO3-(aq) NO(g) + H2O(l) + Cu2+(aq) Select all that apply: The halogen atom is nucleophilic The carbon atom attached to the magnesium reacts as carbanion: The carbon-magnesium bond is polarized with partial negative charge on carbon: The magnesium atom is less electronegative than the carbon atom: The carbon atom bonded to the magnesium is electrophilic: (2 points): Draw the products for the reaction and then draw the mechanism for the reaction below: In mechanisms, you must show all intermediates, lone pairs, formal charges and curved electron flow arrows. c. 9.1 yr b)How far from the base of the cliff does the stone strike? c. Germanium, Ge, Z = 32 (c) What is the bond order of $\mathrm{CO}$ ? the mass of exactly 1 mole of methanol. 6 e. ion-ion forces. Who would do exactly the same procedure in the case of the sulphuric asset. c. He e. 2.35 10-3 M, Iodine trichloride, ICl3, will react with a chloride ion to form ICl4-. c. Silk Its molar heat of vaporization is 39.3 kJ/mol. 1 moles Arsenic to grams = 74.9216 grams. Simply divide the relative atomic mass of the element by Avogadro's number to get the answer in grams. (R = 8.314 J/K mol) a. -True. d. 6.00 lb b. a. b. Carbon, C, Z = 6 e. Te, What is defined as the number of waves that pass through a particular point in one second? b. H2SO3 e. None of these species is an ion. The correct answer is: an effective antidote for heavy metal poisoning (e.g., Pb2+ and Hg2+). The atomic number of nitrogen is (a) 14 (b) 7 (c) 12. Px. c. lower left, upper right e. HClO3, Which one of these salts will form a basic solution upon dissolving in water? c. C4H10 d. 12 a. fats A. calculate the normal force. My name is agenthammerx, a Master Answerer and Engagement Team Member here on Brainly. (R = 8.314 J/K mol) (b) Do you expect $\mathrm{CO}$ to be paramagnetic or diamagnetic? d. 14C 16 p, 15 n, 16 e 220 mmHg b. Cu2+ You need to add up the masses of all of the atoms in that one molecule and use them instead. b. the radius of the cubic cell Select one: a. Which of the following statements is not true? For example, one atom of helium-4 has a mass of 4.0026 amu. Calculate the maximum numbers of moles and grams of iodic acid (HIO $_{3}$ that can form when 635 $\mathrm{g}$ of iodine trichloride reacts with 118.5 $\mathrm{g}$ of water:$$\mathrm{ICl}_{3}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{ICl}+\mathrm{HIO}_{3}+\mathrm{HCl}[\text { unbalanced }]$$How many grams of the excess reactant remains? Select one: 65.39 g 1.09 x 10-22 8 3.94 x 10258 65.39 amu. What is the mass of one atom of magnesium in grams? Arsenic is a metal. And now we said we multiply with 120.36 g per more. c. 59.8 lb Prove that j P.com jP6?P. b. Hexane-benzene a. c. polypropylene. Solve the IVP Q2) Solve the IVP. Select one: c-What is the mass of 1.40x1020 atoms of calcium? c. 3.45 kJ/mol d. SiO2 0.75 mol of a volatile compound in 750 g of ethanol Select one: (a) Give the electron configuration for the valence molecular orbitals of CO. Select one: b. . An atomic mass unit is defined as a mass equal to one twelfth of an atom of carbon-12. b. a. Now we have two aluminum isles on the product side, but only one on a reaction size or put you here and now for a number of hydrogen is there are only two on the product side. b. -False. Example: Which one of these species is an ion? 2. 40.8C Heating function of the hot plate is used in "changes of state", B) One of these two molecules will undergo E2 elimination "Q reaction 7000 times faster. One atomic mass unit is equal to 1.66 x 10-24 grams. Select one: e. Will all waxes melt at the same temperature? 74.92 grams The average mass of one atom of arsenic is 74.92 amu, and the mass of one mole of arsenic atoms is 74.92 grams. Select one: I need to answer the question with a paragraph. Select one: d. 0.21 1 grams Arsenic is equal to 0.013347285695981 mole. d. H3PO4 Plug in the atomic mass of carbon to solve for the mass of 1 atom: mass of 1 atom = mass of a mole of atoms / 6.022 x 1023, mass of 1 C atom = 12.01 g / 6.022 x 1023 C atomsmass of 1 C atom = 1.994 x 10-23 g. The mass of a single carbon atom is 1.994 x 10-23 g. The mass of a single atom is an extremely small number! a. crystalline solids A) 3.00 g B) 174 g C) 363 g D) 1.81 u 1024 g E) 40.3 g C) 363g Select the compound in which sulfur has its highest possible oxidation number.