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A solution contains 25 grams of salt dissolved in 500 mL of water. What is the concentration of the salt in the solution? Answer: 50 g/L
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A pharmacist prepares a solution by dissolving 10 grams of medication in 100 mL of liquid. What is the concentration of the medication in the solution? Answer: 100 g/L
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A chemist mixes 50 mL of a 10% ethanol solution with 150 mL of pure water. What is the concentration of ethanol in the resulting solution? Answer: 2.5%
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A farmer adds 2 liters of fertilizer to 8 liters of water. If the fertilizer concentration is 10%, what is the concentration of the solution? Answer: 20%
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A scientist prepares a solution by dissolving 5 grams of sugar in 250 mL of water. What is the concentration of the sugar in the solution? Answer: 20 g/L
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A student mixes 30 mL of a 5% hydrogen peroxide solution with 70 mL of water. What is the concentration of hydrogen peroxide in the resulting solution? Answer: 1.5%
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A chef prepares a marinade by mixing 100 mL of soy sauce with 200 mL of water. If the soy sauce concentration is 15%, what is the concentration of the marinade? Answer: 5%
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A researcher dilutes 50 mL of a 20% acetic acid solution with 150 mL of water. What is the concentration of acetic acid in the resulting solution? Answer: 5%
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A pharmacist prepares a solution by dissolving 2 grams of medication in 50 mL of liquid. What is the concentration of the medication in the solution? Answer: 40 g/L
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A chemist mixes 100 mL of a 25% ethanol solution with 200 mL of pure water. What is the concentration of ethanol in the resulting solution? Answer: 8.33%
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