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Question- What is the mass percent of an aqueous solution formed by dissolving 36.9 grams of Potassium Carbonate in a total volume of 193.2mL of solution? The density of the solution is 1.037 g/mL
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What is the final temperature, in ?C, of the gas in the bubble outside the volcano if the final volume of the bubble is 161mL and the final pressure is 0.827atm, if the amount of gas remains constant?
the solution has an osmotic pressure of 4.18mm Hg at 25C,what is the molar mass of new protein?
If this arsenic is present as arsenate, AsO4^3-, what mass of sodium arsenate would be present in a 1.10L sample of drinking water that just meets the standard. Parts per billion is defined on a mass basis as ppb = g solute/g solution 10^9
Compute the heat amount required to heat a 3.9kg gold bar from 28 degree Celsius to 68 degree Celsius. Given Specific heat capacity of gold = 0.128 J/g°C.
How many additional milliliters of titrant are needed to reach the first equivalence point of quinidine dihydrochloride. What is the pH at the first equivalence point
A 0.12M solution of a weak acid HA has pH = 2.49. What is the Ka of this acid.
Plot the normalized particle in a box wavefunctions for an electron in a box of 1210 pm for n=1-6 on the same plot. Are any patterns evident? what is the probability of finding an electron in the middle 605 pm for n=6
Explain why is the reaction of alkenes with HCl (a rapid, simple reaction) NOT valuable as a characterization reaction, but reaction with Br2 is a good characterization reaction. Explain how does a solution of hydrochloric acid differ in appearanc..
Calculate the time in hours which would have been required for 99.9% of the t-butyl chloride to hydrolyze, if the reactant had been allowed to proceed without the addition of extra water or heating.
Find the value of Kc for the reaction 2 CH4(g) C2H2(g) + 3 H2(g) at 1700 °C if the initial [CH4] = 0.115 M and the equilibrium [C2H2] = 0.04 M.
using structures for all species write the complete esterification reaction begun belowmethanol ch3oh salicyclic acid
a mole of methane assume perfect gas is heated reversibly at atmospheric pressure until its volume doubles. the
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