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what is the density of a sample of ammonia gas, NH3, if the pressure is .928 atm and the temperature is 63.0 C?
Explain briefly that how HCl could test for limestone's presence , use the balanced chemical equation for this and then describe specific reaction that takes place?
It is given that the v.p. of water =233.7 mm Hg.at 70 degree Celsius then calculate the vapor pressure? express your answer in mm Hg ?
The activation energy for the reaction NO 2 (g)+CO 2 (g)?NO(g)+CO(g) is E a = 100kJ/mol and the change in enthalpy for the reaction is ΔH = -200kJ/mol. What is the activation energy for the reverse reaction?
how many moles of Cu2O can be produced from the reaction of 0.66 mol Cu with 0.40 mol O2?
Determine how much time (in seconds) is needed to form 150. g Na from a sodium chloride melt by a 25 Ampere current?
Calculate the standard reaction enthalpy for the oxidation of nitric oxide to nitrogen dioxide 2 NO(g) + O2(g) → 2 NO2(g)
An unknown gas effuses at a rate of 86.6 mol/hr. Under similar conditions, I2 effuses at a rate of 30.4 mol/hr. What is the molar mass of the compound.
Determine the molar mass of the substance if 120.0 grams of a pure sample contained 24.0 mol of the substance. Express your answer in g/mol.?
Compare a refrigerator set at four degree celcius and a freezer set at minus twenty degree celsius, both of which are operating in the room at the temperature of eighteen degree celsius.
Determine how much energy will be required to heat 69.7 gal of H 2 O from 22 degree Celsius to 110 degree Celsius if it is given that 1.00 gal weighs 3.77 kg and water has a specific heat capacity =4.184 J/g C
I need assistance with a project concerning demographic transition, which is little confusing to me. I am really concerned with this class as I have a failing grade
To determine the molecular formula of a compound - gas was mixed with calcium chloride solution,
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