(Solved): 1. What is the mass in grams of \( 34.3 \) moles of \( \mathrm{NaCl} \) ? 2. Determine the number ...

1. What is the mass in grams of \( 34.3 \) moles of \( \mathrm{NaCl} \) ? 2. Determine the number of moles in \( 5.95 \times 10^{23} \) formula units of \( \mathrm{CaCl}_{2} \). 3. How many molecules are in \( 22.0 \) moles of \( \mathrm{CO}_{2} \) ? 4. Determine the quantity in moles of \( A g \) that are in \( 42.0 \) grams of \( \mathrm{Ag}_{2} \mathrm{O} \). 5. Determine the number of atoms of \( \mathrm{O} \) in \( 33.5 \) grams of \( \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} \). 6. What is the molecular formula of a compound with an empirical formula of \( \mathrm{C}_{5} \mathrm{H}_{8} \) and a molar mass of \( 136.2 \mathrm{~g} / \mathrm{mol} \) ? A) \( \mathrm{C}_{15} \mathrm{H}_{24} \) B) \( \mathrm{C}_{10} \mathrm{H}_{16} \) C) \( \mathrm{C}_{2} \mathrm{H}_{6} \) D) \( \mathrm{C}_{6} \mathrm{H}_{6} \) 7. What is the molecular formula of a compound with an empirical formula of \( \mathrm{CH}_{2} \) and a molar mass of \( 84.2 \mathrm{~g} / \mathrm{mol} \) ? A) \( \mathrm{C}_{6} \mathrm{H}_{12} \) B) \( \mathrm{C}_{5} \mathrm{H}_{10} \) C) \( \mathrm{C}_{2} \mathrm{H}_{6} \) D) \( \mathrm{C}_{6} \mathrm{H}_{6} \) 7. What is the mass percentage of \( \mathrm{C} \) in \( \mathrm{C}_{2} \mathrm{H}_{4} \mathrm{O}_{2} \) ? Provide an answer to two decimal places.