Chemistry, 30.06.2019 12:40 larkinc2946
The volume of 400 ml of chlorine gas at 400 mm hg is decreased to 200 ml at constant temperature. what is the new gas pressure? 400 mm hg 650 mm hg 300 mm hg 800 mm hg 18. the collision of gas molecules with the walls of its container produces temperature density volume pressure
Answers: 1
Chemistry, 22.06.2019 00:50
If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?
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Chemistry, 22.06.2019 06:00
Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %
Answers: 1
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 14:30
Connect the whole numbers on the periodic table to indicate what they represent?
Answers: 3
The volume of 400 ml of chlorine gas at 400 mm hg is decreased to 200 ml at constant temperature. wh...
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