It is much lighter than air, which is why it was used to fill zeppelins until the zeppelin Hindenburg exploded, after which helium replaced it. Answer and Explanation: 1 Become a Study.com member to unlock this answer! Create your account View this answer Hydrogen gas is usually a ...
Use the mass of the hydrogen gas to calculate the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole.
PURPOSE:To enhance the separation efficiency of gaseous H2 by using a separation membrane which is produced by adding diisocyanate to a polycondensation product of both pyridine-dicarboxylic acid or its derivative and dibasic acid dihydrazide. CONSTITUTION:Diisocyanate such as hexamethylene diisocyanate is ...
4.3. How to prepare 0.1 M hydrochloric acid?Hydrochloric acid is the aqueous solution of hydrogen chloride gas (HCl). Concentrated hydrochloric acid (36-38%) is a colorless to yellowish pungent liquid. It is a strong irritant to eye and skin and fumes are harmfull if inhaled....
(pem). applying steady voltage to the electrolyser cell triggers a series of reactions. oxygen atoms are attracted to the anodic catalyst while hydrogen atoms move to the cathodic catalyst. the atom isolation process allows the gas generators to produce pure, high-quality hydrogen almost ...
急!how many liters of hydrogen gas will be produced at 280K and 96kPa if 40g of sodium react with excess water 相关知识点: 试题来源: 解析 用40除以23求得钠的摩尔量,钠与水出氢气,钠与氢气摩尔比2比一,再用气体状态方程求体积,OK?
At least $300 billion is expected to be invested in the next decade worldwide, and we project that in California alone hydrogen will make up 30% of total energy demand by 2050. The push comes as heavy industries like steel, ammonia, concrete, and oil and gas face decarbonization pressures...
Advantages include better gas efficiency, lighter weight due to no need for nitrogen, less decompression time and stealth due to minimal bubble production. In conventional scuba gear, when you breathe in through the mouthpiece you get a fresh lungful of air from the tank that you carry on your...
Hydrogen peroxide solution can be used to disinfect your lenses. These solutions are preservative-free and can be suitable for those with sensitive eyes when used correctly. Using hydrogen peroxide solutions to disinfect contact lenses can be a one or two-step process. In the one-step method, ...
Many scientists think that life is a natural progression for planets that feature the necessary ingredients for biology, such as carbon, hydrogen, oxygen and other fundamental building blocks. With the right spark — say, a bolt of lightning — those cornerstones slowly develop into the cell walls...