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How much heat is evolved when 1235 g of water condenses to a liquid at 100°C? ΔHcond = -40.7 kJ/mol.
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What are the symbol and name of the element whose average atoms have a mass very nearly half the mass of an average silicon atom?
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 ...
Does dissolved solids such as sugar and salt modify/change the boiling point of water; do mixtures have the same boiling point as pure substances?
A chemist adds 370.0 mL of a 0.371M barium acetate (Ba(C2H3O2)2) solution to a reaction flask. Calculate the millimoles of barium acetate the chemist has added to the flask. Round your answer to 3 significant digits.
Assessment Task You have been tasked to prepare a report for potential investors that allows them to understand the potential social, ethical and legal opportunities and risks of a technology, selected from a list of top ...
At rest, a person inhales 9.72*10^21 nitrogen molecules in an average breath of air. How many mole of nitrogen atoms are inhaled? (Hint: in air, nitrogen occurs as a diatomic molecule)
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?
How many grams of H2SO4 must be dissolved into 0.709 L of solution to generate a concentration of 0.303 M?
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
The solubility of silver sulfate, Ag2SO4, inwater has been determined to be 8.0 g/L. What is the solubility in0.37 M sodium sulfate,Na2SO4?
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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