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Question- Find the ph and concentrations of CO3^2-, HCO3^-, H2CO3 at the first equivalence point when 50ml of 0.150M carbonic acid is titrated with 0.120M NaOH. (pk1=6.351, pk2=10.329)
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what is the bp of its enantiomer?What optical rotation would be observed if 7.2 g of (S)-amine were mixed with 7.2 g of the (R)-amine?
The vapor pressure of dichloromethane,CH2Cl2, at 0 C is 134 mmHg. The normal boiling point of dichloromethane is 40 C. Calculate its molar heat of vaporization.
dissolved .31 grams of khp in 25 ml of water and it required 15.5ml of naoh to reach end of titration how many moles of
What types of bombs were dropped on Hiroshima and Nagasaki, resulting in Japans surrender at the conclusion of WWII? What isotopes were used in the bombs? What were the long term effects of these bombs?
If 95 0C of heat are added to a pure gold coin with a mass of 20 gm, what is its temperature change? Specific heat capacity of gold is 0.128 .
BICINE is a compound that contains a tertiary amino group. You have 0.5 L of 0.05 M BICINE with its tertiary amine in the unprotonated form. How much 0.2 M HCl or 0.2 M NaOH must be added in order to create a BICINE buffer solution pH = 7.5. (pKa ..
here A solution of a primary standard KHC8H4O4 was prepared by dissolving 0.4877g potassium hydrogen pthalate in 50 ml H2O. Titration with KOH required 23.84 ml to reach a phenopthalein end point . What is the molarity of KOH
Presuming that 3 H+ are transported per ATP synthesized in the mitochondrial matrix, the membrane potential difference is 0.18 V (negative inside) as well as the pH difference is 1unit (acid outside, basic inside), compute the largest ratio of [AT..
a large containerized planting that contains 79kg of soil. An analysis shows that you need to neutral 3.27 meq/100gof acidity. How much of finely ground pure CaCO3
calculate the number of ATP molecules that can be harvested during the complete oxidation of an 18-carbon fatty acid
A saturated Na2CO3 solution is prepared, and a small excess of solid is present (white pile in beaker). A seed cdrystal of Na2 14CO3 (14C is a radioactive isotope of 12C) is added (small red piece), and the radioactivity is measured over time
The half-life of radon-222 is 3.8 days. How much of a 100 g sample is left after 15.2 days?
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