5.01 kJ are used to melt a sample of ice at 0°C. What is the mass of the sample? general formula:

15.0 g

Explanation:

Step 1: Given and required data

Step 2: Calculate the mass (m) of water

334 kJ are required to melt 1 kg of ice at 0°C (melting point of water). We can calculate the mass of ice melted by 5.01 kJ using the following expression.

Q = ΔH°fus × m

m = Q / ΔH°fus

m = 5.01 kJ / (334 kJ/kg)

m = 0.0150 kg = 15.0 g

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)