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In a chemcial analysis of a chromium alloy, all of the chromium is first converted to chromate ions. a 50ml sample of chromate ion solution is then reduced in a basic solution to chromium (lll) hydroxide by reaction with 22.6ml of 1.08mol/l sodium sulfite in this reactio, the sulfite ions are oxidized to sulfate ion. what is the ammount conventration of the chromate ion solution?
Identify the atom whose electron configuration is [Ar]3d74s2. Write the one or two letter symbol for the element. How many unpaired electrons are there in the ground state of this atom
Propose a synthesis for the following two molecules starting from methylcyclohexane. Methylcyclohexanol and Bromomethylcyclohexane. Show all synthetic intermediates and reagents.
determine how you would make a 100ppb solution of riboflavin from a 50mgl stock solution. do the same for preparation
Consider the following species: Ca, Br1-, Fe2+ , Cu+, Co3+. Li+. List the oxidizing agents. List the reducing agents. (Some could be both.) Which is the best oxidizing agent? Which is the best reducing agent
Write a balanced equation for the reaction, and identify the reducing and oxidizing agents. (b) How many total moles of gas (water vapor and nitrogen monoxide) are produced when 50.0 kg of ammonium perchlorate reacts with a stoichiometric amount o..
If 31.82 g of a metal oxide reacted with excess carbon and 4.08 L of CO2 formed at 100 C and 1.5 atm what is the identity of the metal
How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
suppose that you added 35.0 g of water at 99.50 degrees celsius to a calorimeter containing 150 g of water at 23.0
What is the fractional conversion of ethane. What is the production rate of ethanol.
A solution containing 100g of unknown liquid and 900g water has a freezing point of -3.33C. Given Kf=1.86C/m for water, determine the molecular weight of the unknown liquid and express your answer in g/mol.
Ethylene glycol,C2H4(OH)2, is a colorless liquid used as automobile antifreeze. If the density at 20 degree Celcius of a 4.028m solution of ethylene glycol in water is 1.0241g/mL, What is the molarity of the solution
If you had a stoppered flask with basic luminol and then opened it to the air, why would the chemiluminescence be more pronounced than with the flask stoppered? Why is the chemiluminescence even more pronounced with the ferricyanide/hydrogen perox..
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