2024年6月5日 · When 1.24 L of H2 gas reacts with O2 at STP, the mole ratio between H2 and H2O is 2:2. This means that for every 1 mole of H2 gas reacting, 1 mole of water is formed.

2024年5月27日 · The ratio of H2/C2H6 would be the inverse, or 1.41/5.48 = 0.257, meaning that the rate of diffusion of ethane is about 26% that of hydrogen. How many moles are in …

2010年7月5日 · Use of spectroscopy to detect H2 gas will not be easy unless you can get precise control and containment of any H2 produced by your reaction. As they reflect relatively small …

2024年6月16日 · Hydrogen gas contains H2 molecules. 1 mole of H2 gas contains Avogadros number of molecules, 6.022 X 1023 therefore there are 2 twice as many atoms of hydrogen …

2024年5月21日 · Mass of 1 mole hydrogen gas (H2) = 2 grams. So the mass of 22.4 liters (stp) H2 is 2 g. 1 kilogram = 1kg = 1000 grams. 1 cubic foot = 28.25 liters 1000 grams of H2 = 500 …

2024年6月12日 · When H2 gas is ignited, it burns with a blue flame, while NO2 does not burn and has no color in a flame test. Additionally, NO2 has a pungent smell, unlike H2, which is odorless.

2021年5月20日 · Simply cool the mixture to below 90 K, (−183 °C). The oxygen will condense to a liquid at 90 K. The hydrogen remains as a gas down to 20 K. Use a counter-flow heat …

2024年5月23日 · Copper is a metal that reacts with nitric acid (HNO3) to form hydrogen gas (H2) and copper(II) nitrate (Cu(NO3)2). When copper is immersed in nitric acid, it undergoes a …

2012年4月10日 · In theory, hydrogen gas should be able to displace copper in a copper(II) chloride solution should the gas be bubbled into the solution, is this true? Chemistry news on …

2007年10月2日 · Homework Statement In general, which of the following gases would you expect to behave the most ideally? a) N_2 b) CO c) H_2 Homework Equations N/A The Attempt at a …