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A 0.7995 g sample of a compound containing only uranium and chloride is dissolved in water and excess aqueous silver nitrate is added to precipitate 0.9982 g of silver chloride . Calculate the empirical formula of the compound.
what is the emperical formula of a compound that is 17.552% Na, 39.696% Cr, and 42,752% O?
Find the pH during the titration of 20.00 mL of .1000 M butanoic acid CH3CH2CH2COOH (kA = 1.54E-5), with .1000 M NaOh solution after the following additions of titrant. a. 20.40 mL b. 26.00 mL
consider a cup of coffee that has a temperature of 93oc. assume the mass of the coffee is 550 g and that the specific
When Cl2 is used as water disinfectant, the following reactions should be used to determine the concentration of different species.
Which of the following is (are) formed in the reaction between propyl hexanoate and methylamine. (must select all products which are formed in this reaction)
a 1.150g of the hydrated salt ZnSO4. XH2O is dissolved in water and the sulfate ion is precipitated by adding an excess of BaCl2 solution. The mass of Pure and Dry BaSO4 precipitated obtained is 0.9335g. What is the formula of the zinc sulfate hyd..
the water for the pan is not saturated with CO2. Will the reported percent CaCO3 in the original sample be too high, too low, or unaffected? Explain
What is the pH of the solution created by combining 8.00 mL of the 0.10 M base with 8.00 mL of the 0.10 M acid
Butane (C4H10) has a heat of vaporization of 22.44 kJ/mol and a normal bioling point of -0.4 celsius. A 250 Ml sealed flask contains 0.55 grams of butane at -22.0 celsius. How much butane is present as a liquid?
What is the concentration of the sodium ion (in M) in a solution of 0.607 M sodium sulfate
What is the pH of a phosphate solution made by the addition of 2.5 equivalents to an initial solution of phosphoric acid. The three pKa values of phosphate
When liquid water at 0°C and 1 atm is converted to ice at 0°C and 1 atm, 6.01 kJ mol-1 of energy is released as heat to the surroundings. Calculate the change of entropy for the water, ΔSwater
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