chem
(P1V1/T1) = (P2V2/T2) Don't forget T must be in kelvin.
general chemistry
The breath, largely CO2. has a lower density than water.
ap chemistry
#2 should be right. Ka for HOCl = about 3E-8 Ka for HOBr = about 3E-9 Ka for HOI = about 3E-11
general chemistry College
The only one that has CO2 IN IT is Na2CO3.
general chemistry College
See your other post.
chemistry
Use the dilution formula. c1v1 = c2v2 2.09*v1 = 0.69*1.14 Solve for v1
Chemistry calorimeter.. please help!
Mg + H2SO4 ==> MgSO4 + H2 qrxn = mass H2O x specific heat H2O x (Tfinal-Tinitial) per gram is qrxn/2.16 g Mg. per mol Mg is (qrxn/2.16) x molar mass Mg
Chemistry
Le Chatelier's Principle says that a system in equilibrium will try to undo what we do to it. When volume is reduced that means pressure must be increased so the system will shift to the side with the fewer mols of gas. In this reaction there are 4 mols gas on the left and...
Chem
a. mols NaOH = grams/molar mass = 26.9/40 = about 0.67 and that divided by 0.5 = about 1.35M pH = -log 1.35 pH = -(0.13) = -0.13 approximately. Remember 1.0M = zero pH. b. And it is that simple. It's that negative pH again. HI = 1.62M (H^+) = 1.62M pH = -log(1.62) = about ...
chemistry dilution
This is a confusing problem. Here is another approach. We have a soln that is 200 ug/mL. We want 3 ug/100 uL. That is 0.003 ug/uL = 3 ug/mL Say we want to make 100 mL of this solution, then 3 ug/mL x 100 mL = 300 ug we need. 200 ug/mL x ?mL =300 ug ?mL = 300/200 = 1.5 mL; Ther...
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