A chemist requires 0.752 mol na2co3 for a reaction. how many grams does this correspond to?

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thomaswillmsn132 thomaswillmsn132

18-09-2017
Chemistry

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A chemist requires 0.752 mol na2co3 for a reaction. how many grams does this correspond to?

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W0lf93 W0lf93 · Answer 1 · 2017-09-28T14:46:21+02:00

79.70 grams First, calculate the molar mass of Na2CO3 by looking up the molar mass of the elements used in it. Sodium = 22.989769 Carbon = 12.0107 Oxygen = 15.999 Multiply each molar mass by the number of atoms used, and sum the results to get the molar mass 2 * 22.989769 + 12.0107 + 3 * 15.999 =105.9872 Finally, multiply the molar mass by the number of moles you need. 0.752 * 105.9872 = 79.7024 grams