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Problem- If the water in your house has 1000.0 mg/L of calcium carbonate dissolved in it, How many grams of sodium oxalate could you mix with 100.0 mL of that water before a precipitate would form? Support your answer with calculations.
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What is the molarity of sucrose, C12H22O11, that contains 125 g of sucrosein 3.50L of solution?
A freezing point of -5.20?C is recorded for a solution made by dissolving 10.56 g of the compound in 25.0 g of water. Determine the molar mass, and molecular formula of the compound. Assume that the compound is a nonelectrolyte.
A beaker with 100 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.80 mL of a 0.490 M HCL solution to the beaker.
Consider the following reaction for the dissociation of benzoic acid (MW=122 g x mol^-1) in water where Ka for benzoic acid is 6.5 x 10^-5. C6H5COOH(aq) + H2O (l) C6H5COO-(aq) + H30+(aq)
Explain why compare the heats of combustion of sugar or chicken fat measured in a bomb calorimeter with the caloric content of those foods
A 1.44 g piece of metal was taken from a beaker of boiling water at 100 oC and placed directly into a calorimeter at 25.0 o C. The calorimeter heat capacity is 1.23 J/K. If the final temperature is 62.5 oC, determine the specific heat capacity of ..
How many many molecules of XeF6 are formed from 12.9L of F2 (at 298K and 2.60atm). Asssume there is an excess of Xe
The second-order rate constant for the decomposition of nitrous oxide (N2O) into a nitrogen molecule and oxygen atom has been measured at different temperatures given below.
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of BrO3- is tripled and that of Br- is tripled
If 13.5g of (NH_4)_2SO_4 is dissolved in enough water to form 230mL of solution, what is the molarity of the solution.
Find out using the handbook of chemistry/physics a. the solid element with the greatest density b. the solid element with the highest known melting point c. the solid element with the lowest known melting point d. the only two elements that are li..
Use heat of formation data to determine H for the combustion of hydrogen sulfide according to the following reaction: 2 H2S(g) + 3 O2(g) ? 2 SO2(g) + 2 H2O(?) ?H = ? ?Hfo for compounds:
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