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1. The reaction of a mixture of CO and H2 is predicted to produce 523g of CH3OH. If only 372g CH3OH is actually produced, what is the percent yield of the compound?
2. Calculate the mass of silver produced if 5.41g zinc metal and 3.67g AgNO3 react according to the following equation:
Zn(s) + 2AgNO3(aq) --> 2Ag(s) + Zn(NO3)2(aq)
3. Heating NaWCl6 at 300 degrees celcius concerts it into Na2WCl6 and WCl6. If the reaction of 4.42g NaWCl6 produces 1.04g WCl6 what is the percent yield?
A solution is prepared by measuring 33 mL of the concentrated HCl, adding it to water, and diluting to 0.500 L. Calculate the approximate molarity of this solution from the volume, percent composition, and density.
calculate the mass of propylene glycol that must be added to 0.500 kg of water to reduce the vapor pressure by 4.60
It is possible to detect NH3 gas over 10^-2 M NH3. To what pH must .1 M NH4Cl be raised to form detectable NH3
What is the mole fraction of helium, XHe, in a gaseous mixture of He and Ar for which the average molar mass is found to be 8.75g/mol
solid aluminum reacts with chlorine gas to produce solid aluminum chloride. if 2.70 grams of aluminum and 4.05 grams
A container holds 2,0 of gas. the total average change in KE of gas molecules in the container is equal to the the sum of KE of an 8,0x10^-3 -Kg bullet with speed of 770 m/s.
10 ml of a silver nitrate solution is titrated to the equivalence point with 8.5 ml of a .1100 M HCL solution. What is the concentration of the silver nitrate?
The change in the Gibbs energy of a certain constant-pressure process as a function of temperature was found to fit the expression ?G (J K-1)=-73.1 J +42.8T. Calculate the value of S for the process
explain why some molecules are best represendted by resonance structures and how these structures indicate the actual
What is the molality of chromium(III) chloride in a solution prepared by dissolving 75.2 g chromium(III) chloride hexahydrate (CrCl3· 6H2O) in 250.0 g of water.
determinenbsp the energy in joules of a mole of photons coupled with red light of wavelength 7.00 acute 102 nm c 3.0 x
A pressure cooker can be used to cook foods quickly under high pressure. The temperature inside a pressure cooker is 116 degrees celsius. Calculate the vapor pressure of water inside the pressure cooker.
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