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Chemistry, 14.04.2021 23:50 hanniahrnz12345
Pressurized hydrogen gas is used to fuel some prototype automobiles. What is the new volume of a 28.8 L sample of hydrogen for which the pressure is increased from 100 kPa to 350 kPa? Assume the temperature remains constant.
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Chemistry, 23.06.2019 13:30
The zinc within a copper-plated penny dissolves in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can reach the zinc). the reaction between the acid and the zinc 2h+(aq)+zn(s)→h2(g)+zn2+(aq) . when the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °c is 0.947 l at a total pressure of 743 mmhg . (vapor pressure of water is 23.78 mmhg at 25 °c .) what mass of hydrogen gas is collected? answer in appropriate significant figures
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Chemistry, 23.06.2019 14:00
How much would you need to weigh out in order to have 0.2moles of magnesium atoms?
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Pressurized hydrogen gas is used to fuel some prototype automobiles. What is the new volume of a 28....
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