Chemistry

Chemistry, 05.10.2019 18:30, genyjoannerubiera

How many liters will 10.0 grams of hydrogen occupy at stp

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Chemistry, 26.06.2019 16:00, xarianna2007

1. an unknown amount of mercury (ii) oxide was decomposed in the lab. mercury metal was formed and 4.50 l of oxygen gas was released at a pressure of 0.970 atm and 390.0 k. what was the initial weight of mercury oxide in the sample? a.) 27.3 grams b.) 38.3 grams c.) 46.2 grams d.) 60.6 grams 2. read the chemical equation. mg + hcl → mgcl2 + h2 how many liters of hydrogen gas is produced at 298 k and 0.960 atm if 3.00 moles of hydrochloric acid react with an excess of magnesium metal? a.) 38.2 liters b.) 42.6 liters c.) 66.7 liters d.) 76.4 liters 3. the pressure and temperature of a gas are held constant. which of the following is true for the volume of the gas? a.) it is inversely proportional to the number of moles of the gas. b.) it is directly proportional to the number of moles of the gas. c.) it is equal to the number of moles of the gas. d.) it is half of the number of moles of the gas.

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Chemistry, 26.06.2019 16:00, vavery61

1. what is the mass of 22.4 l of h2 at stp? a.) 1.01 grams b.) 2.02 grams c.) 11.2 grams d.) 22.4 grams 2. read the chemical equation. mg + hcl → mgcl2 + h2 how many liters of hydrogen gas is produced at 298 k and 0.960 atm if 3.00 moles of hydrochloric acid react with an excess of magnesium metal? a.) 38.2 liters b.) 42.6 liters c.) 66.7 liters d.) 76.4 liters

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Chemistry, 15.07.2019 21:30, paralaw61772

Calculate the mass of hcl required to prepare 2.5 liters of a 0.08 molar solution of hcl. 1 h 1.01 hydrogen 17 cl 35.45 chlorine a. 3.2 grams b. 4.5 grams c. 7.3 grams d. 11.4 grams

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Chemistry, 28.07.2019 16:30, yoongnzl

Sio2(s) + 3c(s) --> sic(s) + 2co(g) how many liters of carbon monoxide (co) are produced when you start with 13.4 grams of carbon (c) and an excess amount of sio2? how many liters of hydrogen gas (h2) can be produced when 12.5 grams of zncl2 is also produced at stp? a.0.56 liters co b.2.78 liters co c.9.87 liters co d.16.7 liters co

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