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The crucible is handled with oily fingers after its mass measurement. The oil from the fingers is burned off. Will the percent water in the hydrated salt be reported as being too high too low or unaffected? Explain
Like all lenders, Ricky must report an APR toconsumers. What rate should the shop report? What is the effective annual rate?
A solution is prepared by dissolving a 0.56 g benzoic acid (C6H5CO2H, Ka=6.4*10^-5) in enough water to make 1.0 L of solution. Calculate [C6H5CO2H], [C6H5CO2],[H], [OH] and the pH of this solution.
If the aspirin crystals were not completely dried before the melting point was determined, what effect would this have on the observed melting point
the boiling point of another member of this homologous series wasfound to be 309 . what is the likely molecular formula
when 10.0 g of potassium bromide dissolve in 50.0 g of water in a coffee-cup calorimeter the temperature drops from
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
If you mixed 75 ml of 2 M HCl with 37.5 ml of 4 M NaOH, how many joules of heat would be released? How much would the temperature of the solution increase?
A solution is composed of ethanol and water. The solution density is 0.964 g/mL. The partial molar volume of ethanol and water is 52.0 mL/mol and 17.0 mL/mol respectively. What is the composition of liquid by mass
An unknown amount of water is mixed with 300 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 51.7 mL of 6 M HCl. Calculate the concentration of the diluted NaOH solution. Answer in uni..
An expanding gas does 150.0 J of work on its surroundings at a constant pressure of 1.01 atm. If the gas initially occupied 68.0 mL, what is the final volume of the gas.
Fructose contains only C,H, and O. 17.1g of carbon dioxide gas and 7.26 g of water vapor were produced when 12.1 g of solid fructose were combusted with excess of oxygen gas.
determine the renal extraction ratio for CHF patients it CHF reduces renal function by 1/2 and state and give explanation which is the more abundant isotopic form of copper.
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