Mole ConceptHard
Question
A person needs an average of 2.0 mg of riboflavin (vitamin B2) per day. How many grams of butter should be taken by the person per day if it is the only source of riboflavin? Butter contains 5.5 mg riboflavin per g.
Options
A.363.6 g
B.2.75 mg
C.11 g
D.19.8 g
Solution
Mass of butter should be taken per day =$\frac{2.0 \times 10^{- 3}}{5.5 \times 10^{- 6}} = 363.6g$
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
When 200 g of an oleum sample labelled as 109% is mixed with 300 g of another oleum sample labelled as 118%, the new lab...The vapour density of a sample of SO3 gas is 28. Its degree of dissociation into SO2 and O2 is...If the ratio of mole fractions of solute and solvent is unity, then the mass percent of solute is(Molar masses of solute...Fluorine reacts with uranium hexafluoride UF6 as represented by the following equation.U(s) + 3F2(g) → UF6(g)How many fl...SO2 gas is slowly passed through an aqueous suspension containing 12 g of CaSO3 till the milkiness just disappears. What...