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What is the pH of a 0.15 M solution of the weak base ammonia (NH3)? The Ka of the conjugate acid is (NH4) is 5.6e-10.
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Aqueous potassium phosphate was mixed with aqueous magnesium chloride, and a crystallized magnesium phosphate product was formed. Consider the other product and its phase, and then write the balanced molecular equation f ...
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 ...
There are five forces identified by porter their relevance will be necessary for evaluating companies identified in the pharmaceutical and tobacco industry in the Middle East. CAD Pharmaceuticals Middle East pharmaceutic ...
One liter of nitrogen (N 2 ) and one liter of carbondioxide (CO 2 ), initially at one atmosphere pressure, are forcedinto a single evacuated 500 mL vessel. What is the total pressure, in atmospheres,if the temperature re ...
A hydrogen atom emits a photon as its electron changes from n = 5 to n = 2. For the H atom, E n = -2.18E-18*(1/n 2 ) J. What is the wavelength (in m) of the photon? ( ) m The number of significant digits is set to 3; t ...
Cesium-137 has a half-life of 30.17 years. The first atomic explosion at Trinity Site in New Mexico in 1945 generated significant amounts of cesium-137. It has been 73 years since this detonation. What fraction of the ce ...
Why does a hydrate exist only as a solid? What characteristic of a hydrate is responsible for this phenomenon?
What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?
An aqueous solution has a normal boiling point of 102.0°C. What is the freezing point of this solution? For water K b is 0.51°C/ m and K f = 1.86°C/ m.
How many molecules of butane (C4H10) are contained in a 9.213 g sample? How many hydrogen atoms are contained in this sample?
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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