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04.07.2022 - 11:24

The molecular mass of sodium hydroxide is 40 u, how many grams of sodium hydroxide would be required to make a 0.75 molar solution?

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The molecular mass of sodium hydroxide is 40 u, how many grams of sodium hydroxide would be required to make a 0.75 molar solution?

Answers (1)

Eloise April 5, 2023 в 14:56

To calculate the number of grams of sodium hydroxide required to make a 0.75 molar solution, we need to use the formula: moles = molarity x volume (in liters) We know the molarity (0.75 M) and we can assume a volume of 1 L for convenience. So, using the above formula, we can find the number of moles of sodium hydroxide needed: moles = 0.75 M x 1 L = 0.75 moles Now, we can use the molecular mass of sodium hydroxide (40 u) to convert the number of moles to grams: grams = moles x molecular mass = 0.75 moles x 40 u = 30 g Therefore, 30 grams of sodium hydroxide would be required to make a 0.75 molar solution.

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