Astudent obtained 1.69 g of pure caffeine following recrystallization from a crude sample, which originally weighed 2.51 g. what is the percent recovery of pure caffeine from crude?

The recovery of pure caffeine is 67.3% of the original, crude sample.

Explanation:

Step 1: Data given

Mass of pure caffeine = 1.69 grams

Original mass of sample = 2.51 grams

Step 2: What is the percent recovery of pure caffeine from crude?

Percentage = (mass of recovery / original mass) *100%

Percentage = (1.69 grams/2.51 grams) *100%

Percentage = 67.3 %

The recovery of pure caffeine is 67.3% of the original, crude sample.

yes, water is wet, just as it makes other things wet, it is wet itself, kinda like ice, when ice is in water, the ice makes water cold, and ice is cold, therefore with that example, water is wet

just did the assignment and the answer was #1 +2 n