Chapter 1, Problem 1.42E

56. Some people believe that large doses of vitamin C can cure the common cold. One commercial over- the-counter product consists of 500.0 mg tablets that are 20.0% by mass vitamin C. How many tablets are needed for a 1.00-g dose of vitamin C? (Note: 20.0% by mass means that there are 20.0 grams of vitamin C for every 100 grams of tablets. As a 20.0 g vitamin C conversion factor, you would write 100 g tablets

735.13 ml 7. The density of methanol is 0.791 g/mL. What is the volume of a 10.0 g sample of methanol?

Which of the following is greater? a. 8.5 grams per milliliter or 8500 Kg/ m3 b. 5 x 10-2 kg/m3 or 5 x 10-4 gr/cm3.

A 100.0-mL sample of a liquid is found to weigh 220.71 g. a. What would be the mass of 32.25 mL of the same alcohol? b. What volume would be occupied by 25.4 g of this alcohol?

Ethylene glycol (antifreeze) has a density of 1.11 g/cm3.a. What is the mass in g of 417 mL of ethylene glycol?b. What is the volume in L of 4.1 kg of ethylene glycol?

Q1. Alisha went to the doctor and got her blood calcium levels measured. If the doctor found that a 1.7 mL sample of her blood contains 9.7 mg/dL of calcium how many total grams of calcium are present in her bloodstream? (Alisha has a total blood volume of 3.8 L.) Q2. A cold medicine contains 2.7% (m/m) of diphenhydramine HCl (a cough suppressant). If a single tablet contains 14 mg of diphenhydramine HCl, how much does the tablet weigh in grams?

Acetone (nail polish remover) has a density of 0.7857 g/cm?. a. What is the mass in g of 28.56 mL of acetone? b. What is the volume in ml of 6.54 g of acetone?

1. The recommended daily allowance (RDA) of the trace  metal magnesium is 410 mg/day for males. Express this quantity in μg/day.   2. For adults, the RDA of the amino acid lysine  is 12 mg per kg of body weight. How many grams per day should a 70.0 kg adult receive?

If 15 drop ethanol from a medicine dropper weigh 0.60g how many drops does it from a dropper to dispense 1.oml of ethanol the density of ethanol is 0.80.g/ml