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10.00mL of the final solution 0.6M is reacted with surplus BaCl to produce a precipitate of barium sulfate (fw= 233.4g/mol). The dry solid weighs 0397g. Use this mass also dilution volumes, 100-mL to compute the actual molarity of sulfuric acid in the initial solution.
Calculate the partial pressure in atmospheres of O2 in the air outside an airplane cruising at an altitude of 10 km, where the atmospheric pressure is 190.0 mmHg
A process occurs spontaneously and DSsystem 0DSuniverse > 0The pressure is constant.Both (a) and (b) are correct.All of these answers are correct.
Balance the following redox reactions. Break your answer down into individual steps not just the final balanced numbers. a) P4(s) + NO3^- ==>> H2PO4^- +NO(g) (acidic solution)
a 4.80 g nugget of pure gold absorbed 298 j of heat. what was the final temperature of the gold if the initial
500cm3 of 0.250M of Na2SO4 is added to an aqueous solution of 15.0g of BaCl2 resulting in a white precipitate of insoluble BaSO4.
Determine the energy of 1.60 mol of photons for each of the following kinds of light. Infrared radiation (1510 nm)
C2H5OH(l) + C3H7COOH(l) C3H7COOC2H5(l) + H2O(l) Determine the mass of ethyl butanoate produced if 3.30 mol of ethanol is used.
calculate the percentage by weight of oxygen in the product formed when a 2.60-g sample of selenium combines with
The coefficient of heat transfer between a pure saturated vapor and a cold surface canbe predicted by the following equation:
di ethyl ethal is a volatile, highly inflammable organic liquid that is used mainly as a solvebt. the vapour pressure of di ethyl ethal is 4.01mmHg at 18 degree celcius.
The pH of a bicarbonate-carbonic acid buffer is 7.80. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-).
Consider the reaction, 2 D(g) + 3 E(g) + F(g) => 2 G(g) + H(g) When [F] is decreasing at 0.60 mol/Ls, how quickly is [G] increasing
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