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Calculate the density in grams per liter

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Reference no: EM132699781

1. Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation

MnO2(s)+4HCl(aq)?MnCl2(aq)+2H2O(l)+Cl2(g)

How much MnO2(s) should be added to excess HCl(aq) to obtain 125 mL Cl2(g) at 25 °C and 1.10×102 kPa ?

2. Calculate the pressure of a gas at 283 K if the concentration is 0.150 mol/L .

3. Calculate the density, in grams per liter, of a gas at STP if 1.39 L of the gas at 20.3 °C and 779.4 mmHg weighs 0.380 g.

Reference no: EM132699781

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