Question

В 225г 2% раствора NaCl прилили 200 г воды. Найти м.д.р.в. в новом растворе

Answer 1

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Answer 2

Calculating Molar Mass of the New Solution

To find the molar mass of the resulting solution after adding 200g of water to 225g of a 2% NaCl solution, we can use the formula:

Molar Mass = (mass of solute + mass of solvent) / moles of solute

First, let's calculate the mass of NaCl in the original solution: - Mass of NaCl = 2% of 225g - Mass of NaCl = 2/100 * 225g - Mass of NaCl = 4.5g

Now, let's calculate the molar mass of the resulting solution: - Mass of solute = 4.5g (NaCl) - Mass of solvent = 200g (water)

Molar Mass = (4.5g + 200g) / moles of NaCl

To calculate the moles of NaCl, we need to use the molar mass of NaCl, which is 58.44 g/mol.

Using the given information, we can calculate the molar mass of the resulting solution.