Dividing the mass of the water lost by the mass of hydrate used is equal to the fraction of water in the compound. Multiplying this fraction by 100 gives the percent water in the hydrate.Click to see full answer. Furthermore, how do you find the mass of water in a hydrate?Take the mass of the hydrate and subtract the mass of anhydrate from that to get the mass of water. 210.4 g MgSO4 nH2 O – 120.4 g MgSO4 = 90 g H2 O. Convert the mass of water to moles. Mass of water / molar mass of water = moles of water. what is the mass percentage of water in the hydrate CuSO4 5h2o? A mole of CuSO4•5H2O contains 5 moles of water (which corresponds to 90 grams of water) as part of its structure. Therefore, the substance CuSO4•5H2O always consists of 90/250 or 36% water by weight. Beside above, what is the percent by mass of water in the hydrate cocl2 6h2o? Since you have 6 water molecules, and it is equal to 108, you simply divide 108 and 207. You get a decimal. Multiply it by 100%. You’ll get 52.17%.How do you identify an unknown hydrate?Identify your unknown hydrate from the list of possible hydrated salts below. (atomic mass units) or the mass of a mole of the element in grams/mol. For a compound, the molar mass is defined as the sum of all the masses in one mole of the compound.
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