Answer
3 moles of Glycine $\times\frac{75 grams}{ 1-mole-of- Glycine}$ = 225 grams of Glycine
Work Step by Step
For every one mole of glycine, we know that there are 75 grams of glycine. Knowing this, one can use dimensional analysis to find the amount of grams in 3 moles of glycine. One will multiply 3 moles by 75 grams over 1 mole. Moles will cancel out and the final unit will be in grams of glycine.
