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1. What is the final volume in milliliters when 0.653 L of a 45.4 % (m/v)...

1. What is the final volume in milliliters when 0.653 L of a 45.4 % (m/v) solution is diluted to 24.0 % (m/v)?

Express your answer with the appropriate units.

2. A 751 mL NaCl solution is diluted to a volume of 1.06 L and a concentration of 8.00 M . What was the initial concentration?

Express your answer with the appropriate units.

3. What volume of 1.00 M HCl in liters is needed to react completely (with nothing left over) with 0.750 L of 0.200 M Na2CO3?

Express your answer to three significant figures and include the appropriate units.

4. A 639-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 15.1 g CO2. What was the concentration of the HCl solution?

Express your answer to three significant figures and include the appropriate units.

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Answer #1

0 By using relation, Cu, = C2 V2: Here, S, = 45.40%, V = 0.653 L = 653 mL (2=24% , V₂ = ? By putting values, we get v 653 m2

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