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32.4 mL of 0.153 M HCl(aq)will neutralise 25.0 mL of NaOH(aq) solution of unknown concentration. Calculate the concentration of the NaOH(aq)solution. Your answer should be in molL-1(aka M). Please do not include units in your answer. Give your answer to 2 significant figures.
Question- A test portion has a transmittance of 0.975 in a 1.00-cm sample cell. What transmittance do you predict for this same test portion in a 5.00-cm sample cell? The wavelength is not changed.
If 355 mL of hydrogen gas is collected over water at 25C at a total pressure of 751 mmHg, how many grams of Zn reacted?
What are the main branches of chemistry and explain two of these branches.
calculate the quantity in grams of formic acid and sodium formate necessary to make 500 mL of a buffer that has a formic acid concentration of .75 M and a sodium formate concentration of .75 M
Acetic acid, CH3COOH, could be produced from (a) the reaction of methanol with carbon monoxide; (b) the oxidation of ethanol; (c) the reaction of carbon monoxide with methane. write balanced chemical equations for each process. carry out a thermod..
a solid consists of a mixture of nano3 and mgno32. when 6.50 g of the solid is dissolved in 50.0 g of water the
Initially A sample of a substance of 23.43 g weight has temperature 24.2 °C then it absorbs heat and reached to temperature 122.0 degree Celsius; calculate the specific heat of this substance if it absorbs 2167 joule heat
cadaverine a foul smelling substance produced by the action of bacteria on meat contains 58.55 c 13.81 h and 27.40 n by
A semipermeable membrane separates two solutions. On one side of the membrane the concentration of sodium ions is 0.87 mol/L, and on the other side the concentration of sodium ions is 2.5 mol/L.
At 25ºC the solubility product constant, Ksp, for magnesium phosphate, Mg3(PO4)2, is 1.0´10-24. The solubility product constant for magnesium fluoride, MgF2, is 7.0´10-11.
Explain what types of chemical compounds describe Trimyristin and its soaps. Explain what happens to the Trimyristin if ethyl ether is evaporated rapidly (>60deg. C)
Initially a container contains 0.60 M HI, 0.038 M H2, and 0.15 M I2 at equilibrium. What is the new equilibrium concentration of H2, if the H2 concentration is increased by 0.292 M
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