10.) 0.0621 mol k₂s = ______ g k₂s (3 points)
10.) 0.0621 mol k₂s = ______ g k₂s (3 points)
Answer
Explanation:
Step1: Find molar mass of (K_2S)
The molar mass of (K) is approximately (39.1\ g/mol) and of (S) is approximately (32.07\ g/mol). For (K_2S), (M=(2\times39.1 + 32.07)\ g/mol=110.27\ g/mol)
Step2: Calculate mass
Use the formula (m = n\times M), where (n = 0.0621\ mol) and (M = 110.27\ g/mol). So (m=0.0621\times110.27\ g\approx6.85\ g)
Answer:
(6.85)