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If the rate of effusion of a particular gas was measured and found to be 20.0mL/min. Under the same conditions the rate of effusion of pure methane (CH4) gas is 47.4mL/min. Explain what is the molar mass of the unknown gas(g/mol)?
Explain an unknown acid is a diprotic acid can donate 2 proton. 0.954g of the unknown acid is titrated with 0.509M NaOH.
What is the partial pressure of hydrogen gas in a mixture of hydrogen and helium if the total pressure is 588 mm Hg and the partial pressure of helium is 445 mm Hg?
At equilibrium system contains 1.00 mol N2 and 1.38 mol H2 and 0.200 mol NH3 in a2.0 litter container. Define what is the value of K
Given chemical reaction is used to produce electricity in lead storage battery that used in automobiles generally.
The white solid that remains in the centrifuge tube after acetone extraction fizzes when hydrochloric acid is added, suggesting that sodium carbonate is present. How did this substance form? Give a balanced equation for its formation.
Diet cola has a pH of 3.0 while milk has a pH of 7.0. Explain how many times greater is the H+ concentration in the diet cola than the milk
What would be the reaction sequence for cyclohexene to cyclohexane. Why is this so
It takes 51.0j to raise the temperature of an 11.4g piece of unknown metal from 13.0c to 25.0c. What is the specific heat for the metal
a bomb clorimeter contains 2.5 liters of water if the combustion of .175 moles causes the temperature of the water to rise 45 degrees celsius, what is the molar heat of combustion.
How much of the solution is needed?
A grad student made the news for all the WRONG reasons a few years ago when he synthesized a "nickel hydrazine perchlorate" compound (but didn't give any more detailed information) on a scale 1000 times larger than what his lab advisor told him to..
What is the molarity of a solution that contains 35.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol ) in 110 g of solution?
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