Molar mass - Study guides, Class notes & Summaries

Which is the molar mass of H2O? 18.02 g/mol What is the molar mass of CHCl3? 119.37 g/mol Which best compares 1 mol of sodium chloride to 1 mol of aluminum chloride? Both are made up of 6.02 x 10^23 formula units. Which is the formula mass of (NH4)2SO4? 132.17 amu What is the molar mass of a substance? the mass in grams of one mole of a substance How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen? ...

Chemistry - Mastering Chemistry - Molar Mass Exam Questions & Answers. How many grams of diethyl ether, C4H10O, are found in 5.81 moles of C4H10O? - CORRECT ANSWER 431 grams of C4H10O How many grams of barium chloride, BaCl2, are found in 2.615 moles of BaCl2? - CORRECT ANSWER 544.4 g BaCl2 How many grams of krypton, Kr, are found in 2.093 moles of Kr? - CORRECT ANSWER 175.4 grams of Kr What is the molar mass for lead(II) sulfate, PbSO4? - CORRECT ANSWER 303.27 g/mol How many mo...

How does the number of molecules in 1 molecules of oxygen compare with the number of molecules in 1 molecules of nitrogen? Each sample has the same number of molecules. Magnesium and iron are metallic elements. How does a mole of magnesium compare with a mole of iron? They both have the same number of atoms. Which is the formula mass of (NH4)2SO4? 132.17 amu What is Avogadro's number? the number of atoms, molecules, ions, formula units, or other particles in a mole of a...

Activity: Moles, Avogadro, and Molar Mass

LMR Molar Mass Review B 2022 (show all work) 1.FIND THE MOLAR MASS OF a) Na2S Na 23.0 46.0 S 32.1 32.1 = 78.1 or 78 g b) Li2SO4 Li 6.94 13.88 S 32.1 32.1 O 16.0 64.0 = 109.98 or 110.0 g 2.CALCULATE THE MOLAR MASS OF a) ALUMINUM CHLORIDE Al3+ + Cl-1 = AlCl3

Chapter 7 Moles and Molar Mass exam with 100% Correct answers already graded A+.

Chemistry Test Molar Mass exam with 100% Correct answers already graded A+

Molar Mass exam with 100% Correct answers already graded A+

The standard reduction potential for the half-reaction HClO(aq) + H+(aq) + e- → ½Cl2(g) + H2O(l) is 1.61 V. What is the standard reduction potential for the following half-reaction? 2HClO(aq) + 2H+(aq) + 2e- → Cl2(g) + 2H2O(l) - Ans: 1.61 V Given that Eºcell = 0.60 V for a voltaic cell in which the following redox reaction takes place 2Rh(s) + 3Cl2(g) → 2Rh3+(aq) + 6Cl-(aq) and that the standard reduction potential for the half-reaction Cl2(g) + 2e- → 2Cl-(aq) is 1.36 V, calcul...

What is the total concentration of ions (in mol/L) in a solution obtained by dissolving 3.51 g of Cr(NO3)3 in enough water to make 351 mL of solution? (Molar mass of Cr(NO3)3: 238.01 g/mol) - Ans: 0.168 +/- 1% What is the concentration of sodium ions (in mol/L) in a solution obtained by mixing 90.5 mL of 0.181 M solution of Na2SO4 and 65.5 mL of 0.147 M solution of Na3PO4? Assume that volumes are additive. - Ans: 0.395 Which of the following molecules is polar? - Ans: IF5 What is the ...