In nuclear fusion, about 0.60% of the mass of the fusing substance is converted to energy. What mass in grams is converted into energy when 22 kg of substance undergoes fusion?
1 Answer
First convert kilograms to grams, then convert the percent-mass into mass.
Explanation:
There are 1000 grams in a kilogram, so the first step is to multiply the mass in kilograms by 1000 to find the mass in grams.
From here, we can go one of two ways, with each arriving at the same conclusion:
Multiply the total mass in grams by the percent of the mass that is converted into energy and then divide it by
or
Divide the total mass in grams by 100%, to find the value of 1%, which you can then multiply by the percent-mass converted into energy 0.6% to find the mass that is converted into energy in grams