Bert

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. Which color travels more slowly in the prism? The one that is bent more travels slower. If white light is sent through a prism, the...

18 years ago

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?

18 years ago

What was the relationship between church and state during the 16th Protestent Reformation?

18 years ago

The numbers are 45 and 7, how do you calculate the ratio?

18 years ago

NaCl was used to rinse a condenser after distillation of 4-methylcyclohexene to remove unreacted phosphoric acid. Why is saturated NaCl used to rinse the glassware rather than water?

17 years ago

What major product is formed by the dehydration of 1,2-cyclohexanediol (consider keto-enol tautomerism)?

17 years ago

HCl is added to t-pentyl alcohol in a vial to synthesize t-pentyl chloride. t-pentyl chloride separates on top and the bottom layer is discarded. Sodium bicarbonate is then used to wash the crude t-pentyl chloride. What is the purpose of this wash and why...

17 years ago

When circuit boards used in the manufacture of compact disc players are tested, it is discovered that each has a 5% chance of being defective. Suppose that a batch of 25 of these circuit boards is randomly selected. Would this be binomial or poission dist...

16 years ago

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 temperature of the water when all the ice has melted. Assume that container is insulated and does not change temperature.

15 years ago

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 degrees C, is poured over 120 g of ice at -8 degrees C. What will be the final temperature of the water when all the ice has melted...

15 years ago

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 Percentage yield of BaSO4

14 years ago

If the two input voltages to a 2-input summing amplifier are +2 V and +5 V, what is the output voltage?

13 years ago

If the critical frequency of a low-pass filter is 5 kHz, what is the filter bandwidth?

13 years ago

Together, Misty and Keith caught 29 fish. Keith caught 5 fewer fish than Misty. How many did they each catch?

13 years ago

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 distance between the cars). Calculate: (a)The acceleration of the whole system; (b)the net force on each car; (c)the contact force...

11 years ago

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 titrated with 8.75 mL of 1.00 M NaOH. What is the percent, by mass, of the calcium carbonate in the seashell?

4 years ago

Bevölkerungsanzahl in Österreich im Jahr 2025

3 years ago

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)

3 years ago

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+?

18 years ago

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...

18 years ago

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...

16 years ago

What do Tf and Hf stand for? Are they constants? Also, is Tf different from tf?

15 years ago

Does c stand for temperature in celsius?

15 years ago

Does c in the equation stand for temperature in celsius?

15 years ago

Write to least to greatest. 45/6, 7 1/3 , 7, 4

9 years ago

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...

4 years ago

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 i...

4 years ago