Ask a New Question
Search
Questions and answers by
Bert
Questions (25)
Find the area of the parallelogram with vertices:
P(0,0,0,0), Q(5,-1,2,4), R(5,1,4,3), S(10,0,6,7)
1 answer
115 views
Bevölkerungsanzahl in Österreich im Jahr 2025
1 answer
252 views
A 0.0528g sea shell sample is treated with 20.00 mL of a 1.00M HCl to dissolve all of the sample. The resulting solution is
5 answers
402 views
10. A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did
1 answer
727 views
10. A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did
0 answers
812 views
Two cars are parked on a street. A third car hits the back of the second car and causes all of the cars to move. (Ignore the
1 answer
566 views
A mountain climber dangles his water bottle and feels the bottle makes an angle of 25 degrees with respect to the vertical line.
0 answers
586 views
Together, Misty and Keith caught 29 fish. Keith caught 5 fewer fish than Misty. How many did they each catch?
2 answers
828 views
If the critical frequency of a low-pass filter is 5 kHz, what is the filter bandwidth?
1 answer
1,002 views
If the two input voltages to a 2-input summing amplifier are +2 V and +5 V, what is the output voltage?
1 answer
432 views
50 ml of 5 M H2SO4 react with excess BaCl2 to Make 40 g of BaSO4.
a.) What is the theoretical yield of BaSO4? b.) What is the
1 answer
719 views
Is the answer 26 celsius? Is it possible that the temp is greater than 25 celsius?
A 500 mL bottle of water, which is at 25
1 answer
1,236 views
A 500 mL bottle of water, which is at 25 degrees C, is poured over 120 g of ice at -8 degrees C. What will be the final
2 answers
806 views
A 500 mL bottle of water, which is at 25 degrees C, is poured over 120 g of ice at -8 degrees C. What will be the final
5 answers
917 views
When circuit boards used in the manufacture of compact disc players are tested, it is discovered that each has a 5% chance of
1 answer
718 views
What is the theoretical limit of resolution in micrometers when there is a numerical aperture (N.A) of 0.10, 500nm wavelength,
0 answers
736 views
NaCl was used to rinse a condenser after distillation of 4-methylcyclohexene to remove unreacted phosphoric acid. Why is
1 answer
458 views
What major product is formed by the dehydration of 1,2-cyclohexanediol (consider keto-enol tautomerism)?
2 answers
1,248 views
HCl is added to t-pentyl alcohol in a vial to synthesize t-pentyl chloride. t-pentyl chloride separates on top and the bottom
2 answers
1,078 views
The numbers are 45 and 7, how do you calculate the ratio?
1 answer
407 views
What was the relationship between church and state during the 16th Protestent Reformation?
2 answers
461 views
If 100mL of a 0.10M NaOH solution is added to 75mL of a 0.15 HCl solution, then what is the pH of the resultant solution?
4 answers
820 views
During the 16th century protestent reformation, what was the relationship between the church and state?
http://en.wikipedia.org/w
0 answers
481 views
If a solid glass cylinder is placed above the words Lead Oxide (Lead in red print and Oxide in blue) and viewed from the side,
0 answers
650 views
Suppose you are told that only two colors of light (X and Y) are sent through a glass prism and that X is bent more than Y.
2 answers
1,846 views
Answers (9)
A seashell is crushed, and a 5.28g sample is treated with 20.00 mL of a 1.00M HCl to dissolve all of the sample. The resulting solution is titrated with 8.75 mL of 1.00 M NaOH. What is the percent, by mass, of the calcium carbonate in the seashell. This is
A seashell is crushed, and a 0.0528g sample is treated with 20.00 mL of a 1.00M HCl to dissolve all of the sample. The resulting solution is titrated with 8.75 mL of 1.00 M NaOH. What is the percent, by mass, of the calcium carbonate in the seashell. This
Write to least to greatest. 45/6, 7 1/3 , 7, 4
Does c in the equation stand for temperature in celsius?
Does c stand for temperature in celsius?
What do Tf and Hf stand for? Are they constants? Also, is Tf different from tf?
Transformation efficiency = (Total number of cells growing on the agar plate) / (Amount of DNA spread on the agar plate (in µg)). So if the transformation efficiency is 4 x 10^3 and the amount of plasmid on the plate is 0.04 micrograms, then: 4 x 10^3 = x
Could it be described as the state taking total control over the church by determining how the church will function? I was thinking that after the Roman Empire established Christianity the primary religion that the state was able to over-rule and control
I don't understand where the H+ comes from, I mean I know it comes from the acid, but don't I need an equilibrium constant K to solve for the H+?
