Calculate how many g of solid remained
A 3.50 g sample of solid Mg(OH)2 was treated with 50.0 mL of 0.500 M H2SO4(aq). After the reaction was over, some of the Mg(OH)2 remained undissolved. Calculate how many g of solid Mg(OH)2 remained.
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How many moles of dinitrogen tichloride correspond to 645 mg of dinitrogen trichloride? How many nitrogen atoms would be required to produce that amount of dinitrigen trichloride.
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