Answer ALL the following questions correctly and give evidence of why is it correct!

1. The molar mass of any substance is numerically equivalent to its Enter the correct word or phrase: mass when expressed in amu. 2. Calculate the molarity of a solution prepared by dissolving 0.653 g of KMnO4 (molar mass = 158.034 g/mol) in enough water to make 130 mL of solution. Enter the correct numeric value with the appropriate number of significant figures. Express scientific notation like 4.29E-15 M 3. The precent composition of a compound is defined as the percentage by Select only the best answer: O volume of each element. Odensity of each element. O number of atoms of each element. O mass of each element. O moles of each element. 4. What is the mass of 20.1 mol of benzene (C6H6)? Enter the correct numeric value with the appropriate number of significant figures. Express scientific notation like 4.295-15 g 5. To calculate the mass of a substance, the number of moles must be Select only the best answer: Omultiplied by its formula mass. O divided by the molar mass. O multiplied by its density. O divided by Avogadro's number. O multiplied by the molar mass. 6. An aqueous solution is one in which Enter the correct word or phrase: is the solvent. 7. The molar mass of lead(IV) chloride is Enter the correct numeric value to 2.0% precision. Express scientific notation like 4.295-15 g/mol 8. The molar mass of potassium bicarbonate is Enter the correct numeric value to 2.0% precision. Express scientific notation like 4.295-15 g/mol 9. How many moles of carbon dioxide are contained in 55.5 g of CO2? Enter the correct numeric value with the appropriate number of significant figures. Express scientific notation like 4.29E-15 mol 10. Calculate the molar mass of iron(III) chloride. Enter the correct numeric value to 1.0% precision. Express scientific notation like 4.295-15 g/mol