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A gas mixture contains .80 mol of N2, .15 mol H2, and .30 mol of CH4. Calculate the pressure of the gas mixture and the partial pressure of each constituent gas if the mixture is in a 11.0 L vessel at 27 degree celsius
What is the specific heat of a substance that requires 124 J to raise temperature of 95.5 g from 20.0 degrees celsius to 25 degrees celsius?
A strong broad IR stretching band at about 3500 Cm-1 along with several narrow aromatic bands around 1600 and 1500 Cm-1 suggests the presence of what class compound?
A 38.8 L volume of methane gas is heated from 25°C to 72°C at constant pressure. What is the final volume of the gas
urea at 25c are 0.605 atm and 0.245 amt respectively. calculate the van't hoff factor for the CaCl2.
A green leaf has surface area 2.20 cm^2. If solar radiation is 1190 W/(m^2) , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
If 200ml of 2.00M HCL solution is added to 400ml of 1.00M NaOH solution What molarity will the resulting solution NaCl have?
A gas expands and does P-V work on the surroundings equal to 323 J. At the same time, it absorbs 145 J of heat from the surroundings.
if 19.65mL of .145M nitric acid is required ti neutralize 50.0mL of barium hydroxide what is the molar concentration of the base? 2HNO3+Ba(OH)2-->Ba(NO3)2+2H2O
The reaction of fluorine of 7.6 grams with excess chlorine(Cl) produced 3.3 grams of ClF3. Determine the percent yield of ClF 3 was obtained??
Assuming that the loss of ability to recall Chem 401 material is a first-order process with a half-life of 55 days for the traditional (talking head lecture) and a C of 305 days for the active approach,
the percent yield for the reaction PCl3 + cl2 yields pcl5 is 85%. what mass of pcl5 would be expected from the reaction of 38.5 grams of pcl3 with an excess of cl2
A 32.0-g sample of water at 290. K is mixed with 48.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
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