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Cristian
Questions and answers by visitors named
Cristian
Questions (30)
A sled of mass 50 kg is pulled along a snow-covered, flat surface with a force of 200 N. the friction force acting on the sled
1 answer
710 views
how would you prepare 500 ml of .2M solution starting with solid NaH2PO4*H20?
2 answers
473 views
In the derivation of this expression:
[ln]/[HIn]A# 2 * A#1,acid/A# 2,basic * A#1 We assumed that the HIn form of the indicator
2 answers
580 views
In the derivation of this expression:
[ln]/[HIn]A# 2 * A#1,acid/A# 2,basic * A#1 We assumed that the HIn form of the indicator
1 answer
629 views
Which of these methods is a better representation of the error in a chemical experiment: propagation of error or standard
1 answer
355 views
Which of the following will buffer near pH=9?
a. 0.5M sodiumacetate/0.5M acetic acid b. 0.5M ammonium chloride/0.5M ammonia c.
1 answer
417 views
why would a molecule change color under acidic or basic conditions?
2 answers
825 views
What determines whether or not the majority of acid is in the protonated form in solution? How does this incorporate both the pH
1 answer
348 views
How would you determine the concentration of H+, H2A and MB+ in a solution containing volumes of:
H+ 600 microliters H2A 500
3 answers
423 views
A figure shows a section of a long tube that narrows near its open end to a diameter of 1.0 mm. Water at 20 degrees celsius
1 answer
1,253 views
Suppose a car's motor draws 231 Ampere of current for 6.3 sec to start the car. What mass of Pb is oxidized in the lead-acid
3 answers
409 views
a 110 g solid sample that is a mixture of CaCO3 and CaCl2 is reacted with 1.50 L of 1.45M HCl. Of the calcium salts, only
2 answers
577 views
N2O5 + H2O ---> 2HNO3
The reaction is first order in each reactant. Write the rate law for the reaction my guess rate=
3 answers
1,623 views
When two objects move uniformly toward each other, they get 3.0 m closer each second, and when they move uniformly in the same
2 answers
666 views
How much 5M KOH must be added to 1.0 L of 0.1M glycine (pKa 9.6) at pH 9.0 to bring its pH to exactly 10.0?
5 answers
7,702 views
A rock is dropped from a height of 100 meters above the ground. One second later, a ball is thrown vertically downwards, from
1 answer
844 views
A rock is dropped from a height of 100 meters above the ground. One second later, a ball is thrown vertically downwards, from
2 answers
518 views
When making comparison of sequences where some are whole genome sequences while others are partial genome sequences, or a
2 answers
543 views
Suppose 1.00 ml of blood from a given donor contained 5 X 106 red blood cells and the donor’s hematocrit were 48%. Determine
1 answer
510 views
Suppose 1.00 ml of blood from a given donor contained 5 X 106 red blood cells and the donor’s hematocrit were 48%. Determine
1 answer
415 views
is trypsin inhibitor competitive or noncompetitive
1 answer
352 views
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total
5 answers
551 views
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total
5 answers
661 views
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total
1 answer
451 views
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total
3 answers
476 views
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total
4 answers
647 views
True or False:
For ANOVA you will reject the null hypothesis is the variability within a sample is greater than the variability
6 answers
597 views
Jogger A, with a mass of 55kg, is traveling
6.00m at 3.45 m/s in the positive x-direction. Jogger B, with a mass of 62kg, is
1 answer
400 views
The glass below has a height of 3 inches and a radius of 2 inches. About how many cubic inches of water will the glass hold
2 answers
230 views
What is the domain of the following function?
A (−∞,∞) B [-8, 4] C [-10, 10] D {-8, -7, -6, -5,...}
1 answer
49 views
Answers (26)
HELP ME!!!!!
Plssss accept
I came here for answers, i also think its d tho, this might be 4 years later but i think its d
The response written by DrBob is correct. Using a substitution method with the y=1.0318x, substitute the y in the original formula for 1.0318x, and solve. Keep in mind that you must set z=63.5463 (or just 63.55), otherwise you cannot hope to solve for the
sure did
Please I need to get a good score so my grades can go up a little more
The area is 16 because 4x+6=16
The area is 16
Goon' someplace special" voc. I need please,, unscramble the words Osmentsona Cteors Idtiaiicnmsorn Nceotifdn Gneatrioesg
thank you!
so would it be true?
thank you very much i appreciate it
need help!!!!!!!!
thank u
Thanks!
x-4y=-3 2x+8y=-9
Molar concentrations: H+= .1M H2A= .100M MB+= 2.00X10^-4
That's me too, right? XD
Ms. Sue are you a real-life teacher?c:
Immigration is when a person (immigrant) moves from their home country to another country in hopes of pursuing a better life.(:
37! :D
Lol jk. I don't know the answer..I don't feel like doing math..D:
I know the answer but you don't...suck that!(:
I think so and wouldn't this be in "Biology"?
When the problem has the words "about" or "round" or anything relatively close to that in it, I think that's a good time to estimate. Otherwise, use exact numbers, (:
Mass Does not need to be used.
