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if 115 g of KNO3 are added to 100 g of water at 35oC, how many grams do not dissolve?
what mass of KCl would be needed to form a saturated solution if the KCl was dissolved in 200g of water at 80oC?
what is the mass of cerium sulfate that will dissolve in 50g of water at 10oC?
what is the mass of potassium chloride that will dissolve in 250g of water at 70oC?
a saturated solution of potassium chlorate is dissolved in 100g of water. If the saturated solution is cooled from 90oC to 60oC, how many grams of precipitate will be formed?
what mass of 10oC water will dissolve 350g of potassium chloride to form a saturated solution?
nitrogen gas was collected over water at a temperature of 40 degrees C, and the pressure of the sample was measured at .796 mmHg. if the vapor pressure of water at 40 degrees C is 55 mmHg, what is the partial pressure of the nitrogen gas?
Draw the expected titration curve for the titration of methylamine (a weak base) with hydrochloric acid? What would be the nature of the salt produced at equivalence point of this titration?
a compound is composed of only C.H and O. the combustion of a 0.519-g sample of the compound yields 1.24g of CO2 and 0.255g of H2O.
Calculate the pH of the buffer if 2.0 mL of 0.0125 M HCl is added to the buffer prepared in question 3. What is the % change in the pH of the buffer?
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution contatining 0.070 lysine HL 0.055 mol aspartic acid H2A and 0.0080 mol NaOH.
The volume of a certain bacterial cell is 1.60 µm3. What is the volume of 105 cells in liters (L)?
Compute the pH at the temperature of 25 0C of a solution prepared by mixing 50 mL of 1.60 M sodium hydroxide solution to 0.5 of .0850 M Furoic acid HC 5 H 3 O 3 .
what will the freezing points be of the resulting solution? kf(H2O)=1.86 C/m
A 250.0 ml sample of gaseous hydrogen bromide, measured at 22.9 C and 0.930 atm, was dissolved in sufficient pure water to form 250.0 ml of solution. What was the pH of that solution.
Reaction 1 uses 0.260 of reactant, and Reaction 2 uses 0.590 of reactant. How many times faster is Reaction 2 compared to Reaction 1.
Calculate the volume of dry CO2 produced at body temperature (37°C) and 0.966 atm when 26.0 g of glucose is consumed in this reaction.
how can you tell when the hydrolysis of starch is complete? Why does the test work this way? What is the monosaccharide that results at the end?
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