Question

1.02 mmol carbon disulfide
m_{cs_2} =
g
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Explanation:

Step1: Calculate molar mass of CS₂

Molar mass = C + 2×S = 12.01 + 2×32.07 = 76.15 g/mol

Step2: Convert mmol to mol

1.02 mmol = 1.02×10⁻³ mol

Step3: Compute mass

mass = moles × molar mass = 1.02×10⁻³ mol × 76.15 g/mol ≈ 0.0777 g

Answer:

0.0777