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Cinnamon gets some of its flavor from cinnamaldehyde that is 81.79% C; 6.10% H and the rest is oxygen. Determine the empirical formula for this compound (enter your answer in the form CxHyOz). The empirical formula is
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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 ...
For the equilibrium 2IBr( g )?I2( g )+Br2( g ) Kp =8.5×10-3 at 150 °C. Part A: If 2.7×10-2 atm of IBr is placed in a 2.0-L container, what is the partial pressure of IBr after equilibrium is reached? Express your answer ...
Silver nitrate has the molecular formula AgNO3. In a 109.0 g sample of silver nitrate, how much of that mass (in g) is from the silver atoms?
A student prepared a stock solution by dissolving 20.0 g of NaOH in enough water to make 150. mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make 65.0 mL of a final soluti ...
How is vacuum filtration completing the purification of your sample? Where are the impurities at this point? For a recrystallization lab in organic chemistry
What could a source of error be during a titration lab that is not a humans fault?
A gas is confined to a cylinder with a moveable piston (to allow the gas to expand or contract) under a pressure of 1 atmosphere. When the temperature of the gas is increased, 850 J of heat is added, and the gas expands, ...
Question 1: Bonding Energy i. Draw an energy level diagram for a single Na ion and Cl ion. ii. Explain what is happening to the energy level between these two ions in terms of the Potential Energy. iii. Which process uti ...
Determine the kinetic energy of a 75.0 kg mass moving at 61.3 m/s. Your answer should be in Joules.
A 0.235g sample of a solid is 92.5% NaOH and 7.5% Ca(OH)2, by mass requires 45.6mL of a HCl solution for its titration. What is HCl molarity?
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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