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A solution is labeled "0.464 M NaClO." What are the following in the solution? Express your concentrations to three significant figures even when only two are valid. Express your pH to two places past the decimal point. Note that the value of Ka for HClO = 3.5e-08.
[ClO1-] = M[OH1-] = M
[HClO] = M
pH =
What is the pKb of a base whose conjugate acid has a pKa of 10.91?
pKb =
determine how many micrograms of herbicide are present in 10 lb of soil if the herbicide level in the soil in a corn
Rank the following titrations in order of increasing pH at the equivalence point of the titration (1 = lowest pH and 5 = highest pH).
10 mL of 0.1 M NaOH is added to 50 mL of 0.1 M of the hypothetical acid HA. write the chemical equation and calculate the molarity of NaA and HA in the final solution.
The density of ethanol is 0.7893 g/mL. Calculate the maximum work that could be obtained by burning 1.000 gallon of liquid ethanol
Which of the following is a homogeneous mixture? Which of the following represents a chemical change, rather than a physical change? Which of the following pairs of symbol & element is incorrect?
Consider the addition of 22.59 mL of 0.1643 M aqueous HCl to 19.01 mL of 0.1558 M aqueous NaOH at 25°C. Assuming the volumes are additive, what is pOH of the resulting solution?
The volume of a certain bacterial cell is 1.60 µm3. What is the volume of 105 cells in liters (L)?
a 670 ml gas sample at stp is compressed to a volume of 284 ml and the temperature is increased to 20 c. what is the
A person is considered legally intoxicated with a blood alcohol level of 80 mg/dL. Assuming that blood plasma has a density of 1.025 g/mL, what is this concentration expressed in parts per million
A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 62 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 33 s for 1.0 L of O2 gas to effu..
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 0.034 M NaOH. (c) sodium hydrogen chromate (NaHCrO4)?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 58.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
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