30-01-2017
Chemistry

contestada

Calculate the number of moles of Zn(NO3)2 in 131.50 g of this substance. Note that the formula weight of Zn(NO3)2 is 189.40 amu.

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30-01-2017

to calculate the moles of Zn(NO3)2 you would divide 131.50g by the formula weight (molar mass) 189.40 which would be .6953mol

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