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Treatment of gold metal with BrF3 and KF produces Br2 and KAuF4, a salt of gold. Write a balance chemical equation and identify the oxidizing agent and reducing agent in the reaction. Find the mass of gold salt that forms when a 73.5g mixture of equal masses of all three reactants is prepared.
If 8.0 moles of the gas A is palced in a 60.0 L tank with 1.0 moles of B at 0 degress celsius and 1 atm, they react according to this equation: 2A(g) + B(g) --> 3C(g) +D(g) How many moles are present in the tank when the reaction is complete
Consider the following reaction: SO2Cl2 (g) SO2 (g) + Cl2 (g). K = 2.99*10^-7 at 227 degrees celsius. If a reaction mixture initially contains 0.159 , what is the equilibrium concentration.
3.47 Annual floods for a stream are normally distributed with a mean of 30,000 cfs and a variance of 1 x 106 cfs2. Determine the average return period Tr of a 32,000-cfs flood in the stream.
What is the composition of the vapor of a pentane-hexane solution that has a vapor pressure of 411 torr at 25C
For an enzyme that follows simple Michaelis-Menten Kinetecs, what is the value of Vmax if Vo is equal to 1mmnol -1 minute when [s] = 1/10Km?
A 60.0-W incandescent light-bulb produces about 4.00% of its energy as visible light. Assuming that the light has an average wavelength of 510.0 nm, calculate how many such photons are emitted per second by a 60.0-W incandescent lightbulb
if the total amount of energy emitted by a carbon sample is 1.98x10^5 J, determine the number of carbon atoms present in the sample, assuming that each atom emits one photon
At 20 degree celcius, how many dissociated H+ ions are there in 167ml of an aqueous solution whose ph is 12.17? and At 25 degree celcius, how many dissociated H+ ion
how many moles of copper nitrate are present in 5 ml of 1.20 M copper nitrate? how do you arrive at that answer?
Bradykinin is a nonapeptide that is responsible for the severe pain most people feel after being stung by a wasp. Amino acid analysis of bradykinin gave the following composition of amino acids:
When a bulkheterojunction organic solar cell was irradiated with monochromatic light of 8 mW/cm2, it showed the short circuit photocurrent of 3 mA/cm2. Find at which wavelength (nm) the monochromatic light was irradiated. The external quantum effi..
what is the theorectical yield of disulfure chloride? what mass of the excess reactant reamains when the reaction is completed?
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