Thursday
December 5, 2013

# Posts by Jematormal91

Total # Posts: 35

Chemistry
A geologist removes a sample of water from a lake in Nevada where the water level has been slowly dropping over time. The sample is found to be 0.02M in borax. The lake is circular in shape and is currently 500 meters in diameter and 50 meters deep. Using the given data predic...

Chemistry
Given that ΔGrxn>0, how do you explain that some of the borax actually dissolves at 25deg C?

Chemistry
Consider a process in which an ideal gas is compressed to one-sixth of its original volume at constant temperature. Calculate the entropy change per mole of gas.

Chemistry
Consider a process in which an ideal gas is compressed to one-sixth of its original volume at constant temperature. Calculate the entropy change per mole of gas. I know that the formula is chg.entropy= nRln(V2/V1), but how do I get the values for V2 and V1?

Chemistry
An experimental spacecraft consumes a special fuel at a rate of 2.10 × 102 L/min. The density of the fuel is 0.690 g/mL and the standard enthalpy of combustion of the fuel is –39.8 kJ/g. Calculate the maximum power (in units of kilowatts) that can be produced by thi...

Chemistry
Why is AlCl3 an Arrhenius Acid, while BCl3 is not? How can I determine which is an Arrhenius Acid?

Chemistry

Chemistry
I think I did it wrong... Ksp[Ag2SO4]= [SO42-][Ag+]^2 1.20x10^-5 = [SO42-][0.0350]^2 [SO42-}=9.80x10^-3M Then I substituted into: Ksp[CaSO4]= [SO42-][Ca2+] 4.93x10^-5 = [9.80x10^-3][Ca2+] [Ca2+]= 5.03x10^-3M

Chemistry
I'm actually not sure how to solve it, now I think the [Ca+]= 0.0500M

Chemistry
From my textbook, Ksp(Ag2SO4)= 1.20x10^-5 Ksp(CaSO4)= 4.93x10^-5

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