Answer:
The answer to your question is below
Step-by-step explanation:
Question 2.
Answer: The molar mass is found by taking 2 x the molar mass of K, plus 1 x the molar mass of sulfur, plus 4 x the molar mass of oxygen.
Question 3.
molar mass H₂O₂ = (1 x 2) + (16 x 2)
= 2 + 32
= 34.02 g
Use proportions to find the number of moles
34.02 g of H₂O₂ ----------------- 1 mol
4 g ------------------ x
x = (4 x 1)/34.02
x = 4/34.02
x = 0.1175 ≈ 0.118 moles
Answer: 0.118 moles