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Sarah (C)
Questions (8)
1)Consider a contour map for the region around a hilltop.
a) at some point on the map, in which direction ( relative to the
0 answers
747 views
what is the electric field at the center of the square?
q1 and q2 = -10 micro coulombs q3 and q4= 5 micro coulombs each side is
0 answers
532 views
Coulomb's Law do two charges have to be equal for any given force.
Question: do equal angles necessarily imply that the charges
0 answers
664 views
I want to understand this concept more than anything so advice as well as hints to solve this problem are greatly appreciated.
26
1 answer
731 views
How to determine which of the compounds will have the lowest boiling point vs the highest boiling point?
5 answers
1,130 views
I have many questions. I have a test tuesday and need to get these problems done and understand them today because i am
4 answers
2,427 views
what is the solubility of barium sulfate in a solution containing 0.050 M sodium selfate? The Ksp value for barium sulfate is
1 answer
5,922 views
The Ksp of calcium carbonate is 4.5E-9. What si the concentration of calcium carbonate in equilibirum in water?
-do i make an ICE
1 answer
564 views
Answers (5)
i do not know if this is right but this is how i would do it. M1V 1=M2V2. (0.00307 M) X (150ml)= (M2) X (30 ml) and then you solve to get m2
ok thank you. It is ethanol, not propane o that would make sense.
the largest I value would be MgBr2 because it has 3 ions, KBr has 2, and the other 2 are - to 1 because they do not split, correct? What about my first question? About determining BP highest or lowest. Does the same principle apply?
another question: Which of the following solutions will have the largest temperature range for the liquid state? 1) 1M C3H8? (ethanol) 2)1M CH3COOH (acetic acid) 3) 1M KBr(Potassium Bromide) 4) 1M MgBr2 (Magnesium Bromide) I answered b, since it was the
for #1:i still don't get it because the answer is c) [H+]=(Ka[HA]).
