Question

Terri is beginning a science experiment in the lab. The instructions call for 227 mg of potassium calculate the difference between this amount and 1 g?

Answer 1

In order to determine the required subtraction, first express the 227 mg in grams:

227 mg = 0.227 g

next, subtract the previous result to 1 g:

1 g - 0.227 g = 0.773 g

Then, the difference is 0.773 g or 773 mg