Calculate the number of moles of water in 320gms of water (H=1u, O=16u).
Question
Calculate the number of moles of water in 320gms of water (H=1u, O=16u).
Solution
Sure, here's how you can calculate the number of moles of water in 320gms of water:
Step 1: Calculate the molar mass of water (H2O). The molar mass of an element is its atomic weight in grams per mole (g/mol). For water, it's calculated as follows:
Molar mass of H2O = (2*1) + 16 = 18 g/mol
Step 2: Use the formula to calculate the number of moles, which is:
Number of moles = mass of substance (in grams) / molar mass (in g/mol)
Step 3: Substitute the given values into the formula:
Number of moles = 320g / 18 g/mol = 17.78 moles
So, there are approximately 17.78 moles of water in 320gms of water.
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