1. Calculate the molar mass of each of the following compounds: a. Ethyl chloride , C2H5CI...

1. Calculate the molar mass of each of the following compounds: a. Ethyl chloride , C2H5CI b. Phenobarbital, C12H12N2O3 C.Sodium carbonate, NaHCO3 d. Aluminum sulfate, Al2(SO4)3 e. Diethyl ether, (C2H5)2 O 2. Calculate the number of molecules in each of the following samples. a. 3.04 mol of C8H18 b. 0.002 mol of aspirin, C9H8O4 3. Calculate the mass of each of the following sample. a 17.2 mol of CO2 b . 0.053 mol of (NH4)3PO4 4. Calculate the number of moles in each of the following samples. a. 3.69 x 10 to the power of 24, atoms of uranium, U b. 7.54 x10 to the power of 23 molecules of H2O c. 76.9 g of BaSO4 d. 146.2 g of C2H5OH 5. under certain circumstances, carbonn dioxide , CO2(g), can be made to react with hydrogen gas.H2(g), to produce methane , CH4(g), and water vapour , H2O(g); CO2(g) +4H2(g)----->CH4(g) +2H2O(g) How many moles of methanes are produced when 71.1 moles of carbon dioxide gas react with excess hydrogen gas?

Expert Solution

queen_honey_blossom answered 1 year ago

Give the formula and calculate the molar mass for each of the following substances. ammonium sulfide...

Give the formula and calculate the molar mass for each of the following substances. ammonium sulfide dichlorophenol, C6H4OCl2 barium hydride potassium dihydrogen phosphate

Determine the molar solubility of lead (II) chloride in each of the following:

Determine the molar solubility of lead (II) chloride in each of the following: a. Water b. 0.05M sodium chloride c. 0.4M lead nitrate

Write the equilibrium expressions for the dissolution of the following insoluble compounds and calculate the molar...

Write the equilibrium expressions for the dissolution of the following insoluble compounds and calculate the molar solubilities of each compound: a) AlAsO4, Ksp = 1.6x10-16 b) Cu2S, Ksp = 1.6x10-48 c) Pb3(AsO4)2, Ksp = 4.1x10-36

calculate the percentage by mass of oxygen in the following compounds. C17H19NO3

Calculate the molar mass of each Compound : Gycerol NaCl CaCl This is for the lab...

Calculate the molar mass of each Compound : Gycerol NaCl CaCl This is for the lab experiment on Molar Mass and freezing point, and these are the results l got. Solution. Freezing point in degreesC H2O. 0 Gycerol. -3.5 NaCl. -5.7 CaCl. -4.0 How do these molar masses compare to the theoretical. Calculate the percent error. glycerol I have 0.04470, and 0.0383 for NaCl and 0.01792 for CaCl. I know there is a constant l am supposed to use to...

1. Calculate the mass of KHC8H4O4 (molar mass = 204.44g/mol) that reacts with 15mL of NaOH...

1. Calculate the mass of KHC8H4O4 (molar mass = 204.44g/mol) that reacts with 15mL of NaOH solution in part A.3. Express this mass of KHC8H4O4 to the correct number of significant figures and record the calculation on the report sheet. 2. A 0.204g sample of CO32- antacid is dissolved with 25.0mL of 0.0981M HCl. The hydrochloric acid that is not neutralized by the antacid is titrated to a bromophenol endpoint with 5.83mL OF 0.104M NaOH. Calculate the number of moles...

Calculate the molar mass for the following show your work. 1) C10H22 2) Fe2(SO4)3 Calculate the...

Calculate the molar mass for the following show your work. 1) C10H22 2) Fe2(SO4)3 Calculate the number of moles in each sample 1) 450.0 g C10H22 2) 15.65g Fe2(SO4)3

What would be the effect of each of the following on the calculated molar mass of...

What would be the effect of each of the following on the calculated molar mass of the solute? 1. some cyclohexane evaporated while the freezing point of pure cyclohexane was being measured. 2. some cyclohexane evaporated after the solute was added. 3. some unknown power was still left one the weighing paper. 4. a foreign solute was already present in the cyclohexane? 5. the thermometer is not calibrated correctly. it gives a temperature that is 1.5 C too low at...

Copper(I) chloride has Ksp = 1.7 × 10-7. Calculate the molar solubility of copper(I) chloride in...

Copper(I) chloride has Ksp = 1.7 × 10-7. Calculate the molar solubility of copper(I) chloride in pure water and in various aqueous solutions. a. Calculate the molar solubility of CuCl in pure water. b. Calculate the molar solubility of CuCl in 0.0200 M HCl solution. c. Calculate the molar solubility of CuCl in 0.200 M HCl solution. d. Calculate the molar solubility of CuCl in 0.300 M CaCl2 solution

a). Calculate the molar mass in g/mol of the following compound (ammonium dichromate): (NH4)2Cr2O7 b). Calculate...

a). Calculate the molar mass in g/mol of the following compound (ammonium dichromate): (NH4)2Cr2O7 b). Calculate the mass, in g, of the following: 0.158 mol IF5 (iodine pentafluoride) c). Calculate the amount, in moles, of the following: 25.4 g Pb(C2H3O2)2 (lead (II) acetate) Professors Note: Make sure that you give your answer in a clear and well-reasoned manner, providing necessary explanation on how did you come up with it. d). Calculate the percent by mass of C, H, and O...

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