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Determine the pH of a solution of 10-3 M sodium formate. (Formate is a byproduct of microbial metabolism, and can also serve as an energy source for anaerobic bacteria. It is produced natrually from degradation of organic matter, and also anthropogenically from fuel combustion.) The acid dissociation constant, Ka for formic acid is 10-3.7. Assume T=25*C and I=0.
Find the hydronium ion concentration,the hydroxide ion concentration and the pH of a 0.001 M solution of HCI,if alpha=1 2) Which of salts hydrolize in aqueous solution : CaCO3,Pb(NO3=2,Al2S3?
A tank contains a mixture of 3.0 mol N2, 2.0 mol O2, and 1.0 mol CO2 at 25 degree Celcius and a total pressure at 10.0 atm. Calculate the partial pressure(in torr) of each gas in the mixture.
The number of moles in 15.39 g of C2H6O (molar mass =46.1 g/mol) is ,You transfer a sample of gas at 17 degrees C from a volume of 4.71 L and 1.10 atm to a container at 37 degrees C.
The mass spectrum of an organic compound shows the relative abundances of M to be 85.12% and M+1 to be 0.9206%. Assuming the peaks are caused by C-12 and C-13 isotopes
A 0.100 M solution of a certain weak acid, HA, is found to have a pH of 2.45. Calculate the % ionization for the acid. Enter the answer as a decimal number with 3 decimal places. Do not enter the units.
Given that Kp for 2 SO2(g) + O2(g)-->/
From the following list of aqueous solutions and water, select the one with the highest boiling point.
suppose a 500 ml solution contains 1.00 mmol of co(no3)2, 100 mmol of NH3, and 100 mmol of ethylenediamine. what is the concentration of co2+ in the solution?
Predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixed:
To the same RNA solution, we added an equimolar amount of an RNA binding protein that binds to that RNA specifically. The protein has a molecular weight of 100,000 and contains 10 Trp and 10 Tyrosine residues
An investment company whose stock trades based on supply and demand in the market rather than at net assets value
The resulting solution required 12.36 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO3 in the unknown? Report your answer to two (2) decimal places
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