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Robby
Questions and answers by visitors named
Robby
Questions (32)
i need help making a catapult. im gonna check my pc tomorrow
1 answer
389 views
The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15. What is
3 answers
1,422 views
Three Coulombs of charge flow through a wire in 150 ms.
If the current ceases to flow (goes to zero Amps) for the following 850
2 answers
1,118 views
Square root of 14abc times the square root of 2ab
3 answers
335 views
Number of Cans of Corn Cost
3 $1.95 5 $ 3.25 6 $3.90 9 $5.85 Write an equation to represent the data how do i do that
1 answer
305 views
Number of Cans of Corn Cost
3 $1.95 5 $ 3.25 6 $3.90 9 $5.85 Write an equation to represent the data how do i do that I think the
1 answer
338 views
Suppose that weights are bell shaped with a mean of 120 pounds and a standard deviation of 10 pounds. What percentage of weights
2 answers
541 views
Choose a real or made up example of a company, and describe at least three fixed costs the company has.
2 answers
747 views
How do you say "I will travel to California in the fall" in Spanish
1 answer
296 views
What does Que compras tu para tu madre? Mean
4 answers
395 views
Our Milky Way galaxy is very similar to our neighboring galaxy Andromeda. Consider that each galaxy contains approximately 4.0 x
1 answer
725 views
Calculate the molecular weight of a small protein if a 0.32 g sample dissolved in 161 mL of H2O has an osmotic pressure of 9.0
3 answers
704 views
Consider the following equilibrium:
PCl3 (g) + Cl2 (g) yields PCl5 (g) delta H= -92KJ The concentration of PCl3 at equilibrium
4 answers
6,132 views
2NF3(g) yields N2(g) + 3F2(g)
When 2.06 mol of NF3 is placed in a 2.00L container and allowed to come to equilibrium at 800K, the
4 answers
2,642 views
At 900.0K, the equilibrium comstant (kp) for the following reaction is 0.345
2SO2 (g) + O2 (g) yields 2SO3 (g) At equilibrium the
4 answers
2,420 views
Determine the direction of the following reaction from the relative strengths of acids and bases:
H2S(aq) + C2H3O2-(aq) yields
4 answers
1,028 views
A solution has a hydroxide-ion concentration of 7.48X10-5 M. What is it's hydronium-ion centration?
I have no idea where to begin
3 answers
679 views
What will happen if a small amount of hydrochloric acid is added to a 0.1 M solution of HF?
A) The percent ionization of HF will
4 answers
5,389 views
If some NH4Cl is added to an aqeous solution of NH3:
A. pH of solution will decrease B. PH will not change C. pH will increase D.
2 answers
1,080 views
Calculate the degree of ionization of acetic acid in solution 1 through 3?
All I am giving is the pH... pH of solution 1= 3 pH of
5 answers
2,142 views
1. In re Gault assured juveniles
a. the right to a jury trial b. all the above c. due process in the legal system d. the right to
4 answers
985 views
The river which carries the most traffic in Europe and is the continent's most important inland waterway is the:
Is it the Rhine
6 answers
1,763 views
The annual snowfall in a town can be represented by the Normal model N(46, 6.8).
In about 2.5% of the years, the annual snowfall
2 answers
499 views
If two variables are very strongly associated, the correlation between them will be near 1.0 or -1.0.
A) False B) True I put
3 answers
1,111 views
A perfect positive or negative correlation means that
A) the explanatory causes the y-variable. B) 100% of the variation is
2 answers
778 views
Which of the following is sometimes held to be the only event for which there is no cause?
a.freewill b.emotions c.viruses d.
2 answers
708 views
Find the value of b, if any, that will make the function differentiable at x = 0
g(x)= { x+b, x<0 cos(x), x≥0 can you help, I
4 answers
2,110 views
The rate of motion of the earth at its equator is about 1,038 mi/h because of its rotation. From this information, estimate the
3 answers
790 views
H2 (g)+I2 (g)↔2HI(g)
Calculate ΔG for the system at 700 K when the concentrations are [H2] = 0.12M, [I2] = 0.27M, and [HI] =
4 answers
1,490 views
The length of a moving spaceship is 27.0 m according to an astronaut on the spaceship. If the spaceship is contracted by 14.5 cm
1 answer
479 views
Given that f(x)=x^2-15 and g(x)=10−x, find (f−g)(3), if it exists.
1 answer
446 views
Amazon has dominated on-line retailing (e-tailing) almost since its inception. It now is an industry leader in cutting-edge
1 answer
419 views
Answers (12)
8.110789883... 8.1
I think it's Dee Johnson.
Dirty croch
I'm sure he means "^" as √ or the square root symbol
Dr. Bob, as grateful as I am you took the time to answer my question, I do not believe you are right. In order to get Q, it needs to be in atm, and I am dealing with M? if I am wrong, can you explain to me what I would need to do next?
6x+1408-88x=1072 you may move the decimal 1 place if you want 1408-82x=1072 1408-1072=82x 336=88x x=336/88
Because perfect correlation is r= 1 or r= -1? Is my answer not correct?
Obtaining a confession by _______ is constitutional. a. misrepresentations b. psychological coercion c. physical coercion d. none of the above I choose D. none of the above
Nevermind. I got it. It would help if I looked at the concentration data that my lab book gives me complete the problem:)
Thanks. Is there a way to tell how one acid is weaker than the other or do you have to memorize the charts?
I think I tried to do the ICE and got... 2.06/2.00=1.03 M 0.0227/2.00=0.0114 M but got lost after that and ended up with 1.73 X 10-6...I am really struggling on these problems...
Sir, thank you for answering. I thought it was the adding the Cl2, but it was wrong. That is why I went with decreasing the temp, but now knowing that it is wrong as well. I think my only option is the addition of PCl5 (which I meant to put at the top vice
