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What volume of 0.200M HCl must be added to 250.0mL of 0.300M sodium mandelate to produce a buffer solution with a pH of 3.37. The answer is 194 mL of HCl; however, I'm not sure of how to solve for it.
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Why is (NH 4 ) 2 CrO 4 a molecular compound if ionic is metal + nonmetal and molecular is nonmetal+nonmetal? The Cr is a metal and the NH4 and O4 are non metal so it is metal+non metal but why cant it be ionic instead o ...
Hydrogen peroxide was catalytically decomoposed and 75.3 mL ofoxygen gas was collected over water at 25 degrees celsius and 742torr. What mass of oxygen was collected? (Pwater =24 torr at 25 degrees celsius)
What would be the effect on our body chemistry if large numbers of enzymes were to become malformed and how do they become malformed?
Calculate the number of moles of barium chloride in 427g of a 3.17% by mass barium chloride solution?
Give an example of when heat is released from water as it undergoes a change of phase.
Why do the instructions call for using a saturated solution of NaOH rather than one at lower concentration? Why can we ignored in the calculation of the concentration of NaOH?
Name five types of radiation. Describe, in table form, their mass number, charge, and identity.
If liquid is at or above it's flash point, the flame spread rate is fast, and the entire pool is engulfed within seconds. In such a case, the liquid is already evaporating sufficiently to reach the lower flammability lim ...
A 1.000 g sample of copper metal is heated in a crucible and after 15 minutes themass of the crucible contents is 1.111 g. Calculate the mass of copper (II) oxide that was produced.
20.2 g of an unknown molecular solute is dissolved in 5.65 moles of aniline (C6H5NH2), causing the boiling point of aniline to increase by 3.79 °C. Calculate the molar mass of the solute. For aniline, the molar mass is 9 ...
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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