b. 25% sugar 2. It is the ratio of the mass of solute to the mass of solution multiplied by 100%. a. Molarity b. Mole fraction c. Percent by mass d. Percent by volume 3. A tabrilla called brand X is sold in a store. Its mass is 8 grams containing 52 grams cocoa powder. What is the percent by mass of cocoa powder? a. 45 96 b. 55 96 c. 65 % d. 75% 4. A bayokbok has a mass of 8.0 grams containing 1.9 grams sugar. What is the percent by mass of sugar? a. 24% sugar c. 26%sugar d. 27% sugar 5. What is the total mass of tabrilla containing 60% cocoa powder which is 35 grams cocoa powder? a. 54 grams tabrilla b. 56 grams tabrilla c. 58 grams tabrilla d. 60 grams tabrilla 6. You are asked to add 30 mg salt (NaCl) in 20 mL solution to a favorite adobo dish. This concentration is just enough to give your adobo a salty taste. Express this in percent concentration. (Note: 30 mg = 0.039) a. 0.15 % salt solution b. 0.20 % salt solution c. 0.25 % salt solution d. 0.30 % salt solution 7. What is the volume of solute in a guava extract solution if it has a volume of 100 mL containing 60% guava extract? a. 40 mL guava extract b. 50 mL guava extract C. 60 mL guava extract d. 70 mL guava extract 8. How many mL of ethyl alcohol are present in a 50 ml bottle of rubbing alcohol? (Remember. Rubbing alcohol contains 70% ethyl alcohol, it means that 100mL of rubbing alcohol contains 70 mL ethyl alcohol.) a. 35 mL ethyl alcohol b. 44 mL ethyl alcohol c. 48 mL ethyl alcohol d. 50 mL ethyl alcohol 9. A "10% NaCl solution contains 10 g NaCl per a. 100 mL water b. 100 mL solvent C. 100 mL solution d. 1000 ml solution 10. An alcohol called brand Y is used as disinfectant in hospitals. Its total volume is 100 mL containing 70 ml ethyl alcohol. What is the percentage by volume of ethyl alcohol? a. 60 % b. 70 % C. 80 % d. 90 %​