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why does the addition of EDTA terminate a reaction in which a restriction enzyme cleaves DNA?
Include activity coefficients in your solubility-product expression. The Ksp of AgI is 8.3 x1017.
inexperienced student reacted 3,3-dimethyl-1-butene with H2SO4/H2O. What major product was he surprised to isolate?
Determine the critical micelle concentration and calculate the area occupied by each adsorbed surfactant molecule at the critical micelle concentration.
calculate the volume in ml of .500 M HA , .5ooM NaA , and water required to make 250 ml of a buffer with a total concentration
How many moles of sodium ions are contained in a 100.4 g sample of sodium sulfate, Na2SO4? Round to one decimal place.
the volume of a gas is 93 mL when the temperature is 91C. If the temperature is reduced to 5C without changing the pressure, what is the new volume of the gas?
When an 80.0 liter vessel containing 2.00 mole of NO2(g) was heated to 200oC, 6% of the NO2(g) decomposed to NO(g) and O2(g). What is Kc for the reaction at this temperature?
H3PO4 is a tripotic acid with a ka1=7.5x10^-3, ka2=6.2e-8 and ka3=4.8e-13. What is the value of K for H2PO4 PO4^3- + 2H+
from the number of moles of H2O(.1331 mol) and CO2(.27 mol) that were produced what are the total number of moles of C atoms?
A fertilizer manufacturing plant that produces 1,500 tons per day of fertilizer is known to emit particulate matter (PM) at a rate of 22 grams per ton of fertilizer produced.
To identify a diatomic gas (X2), a researcher carried out the following experiement. She weighed an empty 4.2L bulb, then filled it with the gas at 1.30atm and 23.0C and weighted it again. The difference in mass was 6.3 g. Identify the gas
Write a balanced net equation for the reaction of Na2S with water. writing a net equation, and sodium ions are spectator ions.
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