At STP How Many Grams of Mg Are Required to Produce

question 4

Multiple Choice

At STP how many grams of Mg are required to produce 245 mL of H₂ in the reaction shown below? Mg(s) + 2 HCl(aq) → H₂(g) + MgCl₂(aq)

• A)245 g
• B)0.266 g
• C)0.245 g
• D)29 g

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