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A body of volume 100 cc immersed completely in water contained in a jar. The weight of water and jar before immersion of the body was 700 gm. After immersion, the weight of water and jar will be?
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Consider two acids HCN and HNO2: HNO2 + H2O NO2- + H3O+ Ka = 5.1 x 10-4 HCN + H2O CN- + H3O+ Ka = 2.1 x 10-9 Which of the following statements is/are true? A ...
How many formula units of Na2SO4are present in a 450 gram sample of the salt? Use 6.022×1023mol-1 or Avogadro's number. Report your answer in scientific notation. Your answer should have two significant figures.
C-14 analysis of the Shroud of Turin has shown that approximately 93% of the 14C present in living matter is still present in samples taken from the shroud. Based on this information, what is the approximate age of this ...
Explain why the faster red particles in the video slow down and the slower blue particles speed up when they come into contact with each other.
While heating your copper sulfur mixture the original crucible lid fell and was broken. You replace the lid with another one. You used the mass of the original lid in your calculations. However the mass of the second lid ...
A chemist must prepare 450. mL of 130. mM aqueous aluminum sulfate (Al2(SO4)3) working solution. He'll by pouring out some 0.452 mol/L aqueous aluminum sulfate stock solution into a graduated cylinder and diluting it wit ...
At a given pressure and temperature, it takes 198.7 sec for a 2.6 L sample of Kr to effuse through a porous membrane. How long does it take for 2.6 L Ar to effuse under the same conditions?
The common charges of an element can be related to the electron configuration of the element. Why would copper ions have 2 common charges? Explain each of them in terms of the electron configuration.
Predict whether a precipitation reaction will occur in the following situations. If a precipitation reaction occurs, enter the balanced chemical equation for the reaction. NiCl2(aq)+(NH4)2S(aq)→ AgNO3(aq)+CaBr2(aq)→
How many moles of magnesium ion are present in 5.25g Mg 3 (PO 4 ) 2 ?
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As