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A bottle of phosphoric acid is labeled 85% H3PO4 by mass; density =1.689 g/cm^3. Calculate the molality H3PO4 in the solution and Water is the solvent and the molarity of H3PO4 in the solution and the number of ml of the 85% H3PO4 that is required to make 800 ml of 2.00 M H3PO4?
5 moles of sodium bromide NaBr is mixed with 3 mole of butanol CH3CH2CH2OH to yield 99 g of bromobutane CH3CH2CH2CH2Br
a 0.4 kg aluminum part increases its temperature by 25 degrees celsius. how much thermal energy is transfered to the part by heat?
What is the molarity of a solution of vinegar that is 5.00 % by mass acetic acid (CH3CO2H) and has a density of 1.01 g/mL.
At a certain temperature, the half life of SO2Cl2 is 7.5 x 10^2 min. Consider a sealed flask with 122.0 g of SO2Cl2. How long will it take to reduce the amount of SO2Cl2 in the sealed flask to 45.0g?
Select the strongest interparticle force(s) present in Mg3N2.
A certain constant-pressure reaction is nonspontaneous at 45oC. The entropy change for the reaction is +72 J/K. What can you conclude about the sign and magnitude of the enthalpy
the elemental mass percent composition of ascorbic acid (vitamin C) is 40.92% C, 4.58% H, and 54.50% O. Determine the empirical formula
Imagine a silica microsphere half of which is coated with a thin gold coating and having a trimethylammoniumpropanethiol molecule anchored to the gold.
In some solar-heated homes, heat from the sun is stored in rocks during the day and then released during the cooler night. (a) Calculate the amount of heat required to raise the temperature of 78.7 kg of rocks from 25.0°C to 43.0°C.
Predict the products of the reaction between each of the following compounds and both chromic acid and PCC. a) 2-methyl-2-butanol
how much heat in kj would be required to vaporize 1.00 L of diethyl ether (C4H10O), density is 0.714g/mL at 298 K, if the enthalpy of vaporization at this temperature is 26.0 kj/mol?
container at a temperature of 47C exerts a pressure of 6.3 atm. Calculate the number of moles in the sample
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