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A sample of H2 gas is combined with O2 gas. The combination has a total pressure = 820 torr and the O2 gas has a partial pressure = 32 torr. Determine what is the partial pressure of the hydrogen gas?
The gas cylinder has initial volume of 750.0 mL determine what is the final volume the gas occupies If the pressure of a gas inside the cylinder changes from 840.0 mmHg to 360.0 mmHg,?
when 2.00 x 10 3 g of CaCo3 are heated the actual yield of Cao is 1.05 x 10 3 g. what is the percent yield?
Draw a potential energy diagram for the rotation about the 3,4 carbon-carbon bond plotting potential energy versus torsion angle for 2-methylhexane
In a vessel with a volume 3 m^3 you put 0.03m^3 of liquid water and 2.97m^3 of water vapor so the pressure is 101.33 kPa.
How many grams of F2 are needed to produce 158 g of PF3 if the reaction has a 79.8% yield?
A reaction in water causes the water in beaker to cool from 25 degrees Celsius to 21 degrees Celsius. The volume of water 150ml (d=1.0g/ml). What is the heat absorbed by the reaction?
A 20 mg sample of a compound is dissolved in 5.0 ml of water and extracted with 2.5 mL of heptane. After separation of the layers, the heptane layer is found to contain 15 mg of the compound. What is the partition coefficient of the compound, Khep..
Calculate the enthalpy of the reaction: 2NO(g) + O2(g) --> 2NO2(g) given the following reactions and enthalpies of formation: 1/2 N2(g) + O2(g) --> NO2(g), delta H *A = 33.2 kJ 1/2 N2(g) + 1/2O2(g) --> NO(g), delta H *B= 90.2 kJ
where the temperature and pressure are 4oC and 3.0 atm, to the water's surface, where the temperature is 25oC and pressure is 0.95 atm. Calculate the final volume of the bubble if its initial volume was 2.1 mL
O CH3 CH3CH2CNHCHCH3 Name compound double bond from O and single bond from methyl group
copper is electroplated from CuSO4 solution. A constant curent of 4.39 A is applied by an external power supply. How long will it take to deposit 1.00x10^2g of Cu
Offer a brief explanation of why bandgaps for octet p-block semiconductors (1) decrease with increasing average principal quantum number
0.25 mol of formic acid (HCO2H) is dissolved in enough water to make one liter of solution. The pH of that solution is 2.19. The Ka of formic acid is
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