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Calculate the mass of KCl needed to prepare 4.00 L of a 0.200 M solution.

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Answer:

7.46 g

Step-by-step explanation:

The mass of KCl needed to prepare a solution can be calculated using the formula:

Mass = Concentration x Volume x Molecular weight

In your case, the mass of KCl needed to prepare a 4.00 L solution of 0.200 M concentration can be calculated as follows:

Mass = 0.200 M x 4.00 L x 74.55 g/mol = 7.46 g.

Therefore, you would need 7.46 g of KCl to prepare a 4.00 L solution of 0.200 M concentration.

User Rituparna Kashyap
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