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If the pressure of a gas is 61 atm in a piston, what is the pressure, in atm, if the volume of the piston is increased by a factor of 4 at constant temperature?
The heat of combustion for ethane C2H6 (molar mass=28.0g/mol) is 52.0 kj/g. How much heat would be released if 14g of ethane undergo combustion. How much heat would be released if 2.75 moles of ethane undergoes combustion
The number of moles and the mass of magnesium carbonate, MgCO3, required to produce 283 g of carbon dioxide. (MgO is the other product.)
Problem- Describe the mechanism of the reaction for acetic acid plus isopropanol in sulfuric acid and name the compounds and intermediates.
tris is a compound that is commonly used in laboratories to buffer ph. you have a stock solution of tris that is at a
A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 67 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 24 s for 1.0 L of O2 gas to effu..
A vat contains 2.29 M sulfuric acid solution. How many kg of KOH will be required to react completely with (neutralize) 882 L of the solution?
What would be the effect on the results of mistakenly adding 2.43 x 10^-3g Mg to 4.0mL of 0.1M HCl, rather than to 4.0mL of 1.0M HCl as instructed
Most community water supplies contain 0.5 ppm chlorine added for purification. What mass of chlorine must be added to 1500. L of water to reach this level. (Hint: the density of water is 1.00 g/mL)
a student observed after an experimentnbsp that a gas sample of 250-mlnbsp has a mass of 0.243 g atnbsp a temperature
1). Determine the number of moles of gas contained in a 1.25 L container at 25 degrees Celsius and 800 torr?
A compound contains 10.13% C, and 89.87% Cl (by mass). Determine both the empirical formula and the molecular formula of the compound given that the molar mass is 236g/mol
A 0.5485 g solid mixture have only ferrous chloride hexahydrate and ferrous ammonium sulfate hexahydrate. dissolved in 1M sulphuric acid get oxidized to Fe3+ with hydrogen peroxide, and get precipitated with cupferron.
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