Monday
December 9, 2013

# Posts by cory

Total # Posts: 91

Chemistry
When 20.0 mL of 0.100 M AgNO3 are mixed with 80.0 mL of 0.0100 M Na2CrO4, what is the chromate ion concentration (CrO4^2-)? Ksp for Ag2CrO4 = 9.0 x 10^-12. I think it's 1.0 x 10^-9. Am I right?

Chemistry
When you add 25.0 mL of 1.0 M NaF to 20.0 mL of 1.0 M HF,what would be the result? I think it's a basic buffer. Am I right?

US
What bold statement was made by the Monroe Doctrine?

math
(x+6)(x+5)=2 multiply x by x and x by 5 and 6 by x and 6 by 5 so u get x^2+5x+6x+30=2 2-30 x^2+5x+6x=-28 thats as far as i can get lol hope it helps

US History
How did the Mexican War help expand the sectional divide in the U.S.?

math
how do I do this? 28 students collected 12,374 soda can tabs. If some of the students collected one more tab than the rest of the students, how many collected 441 and how many collected 442?

physics
How do i determine the volume displaced when given mass and volume of an object.

Math
What is the probality of rolling a number less than or equal to 2 on the number cube?

physics
A 15N block is immersed in a salt water (density = 1030 kg/m3). Determine the buoyant force acting on the block if the spring scale reads 11.8 N.

physics
A 15 N block is hung from a spring scale. What is the weight of the block in air?

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