1 liter of (liquid) water contains 55.5 moles.
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The number of moles is 0,527.
To find the molarity, first calculate the molar mass of glycerin to be 92.1 g/mol. Next, convert 1000g of water to liters by dividing by the density of water (1g/mL). Calculate the moles of glycerin in the solution. Finally, divide the moles of glycerin by the volume of the solution in liters to find the molarity.
If the hydrate contains 45% water, then one mole of the hydrate will contain 0.45 moles of water.
To find the number of moles of water, you first need to convert the volume (250.0 mL) to liters by dividing by 1000 (since 1 L = 1000 mL). This gives you 0.250 L. From there, you can use the molar volume of water (18.02 g/mol) and the molar mass of water (18.02 g/mol) to calculate the number of moles using the formula moles = mass/molar mass.
If there is no number in front of the formula, the number of moles is understood to be one.