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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 =
Large beds of rocks are used in solar-heated homes to store heat. Assume that the specific heat of rocks is 0.82J/g-K. a. Calculate the quanituty of heat absorbed by 50.0kg of rocks if their temperature increases by 12.0 C. b. What temperature cha..
the henry law constant kh for o2 in water is 5.6610-5g l-1 torr-1 at 20 degrees c. calulate the concentration of
A products, the general rate law is: rate = k[A]2. How long is the third half-life of the reaction if [A]0 is 0.080 M and the first half-life is 22 minutes?
Using a sample of ferrous ammonium sulfate hexahydrate of 0.5585 grams needs KMnO 4 solution of 21.45 ml to reach a pink endpoint then calculate what will be tha molarity of the KMnO 4 solution?
HNO3 was required for complete reaction with 0.8784+or- 0.0008g of Na2CO3 (FM 105.988+or- 0.001). Find the molarity of the HNO3 and its absolute uncertainty
the third bulb has a volume of 30.0 mL and contains 4.96 atm of hydrogen. If the stopcocks (valves) that isolate all three bulbs are opened, what is the final pressure of the whole system in atm?
The reaction of 0.130 moles of a metal with an acidic aqueous solution in a calibrated calorimeter causes the temperature to increase by 49.0°C.
Determine the number of bonding electrons and the number non-bonding electrons
At room temperature, the equilibrium constant, Keq is approximately 3. Calculate the number of moles of reactants and products expected in the equilibrium mixture of this reaction
Determine each of the following for a 0.500 M HBr solution. 1) Express your answer using three significant figures [H3O+]= M 2) Express your answer using three decimal places pH= 3)the balanced equation when reacted with LiOH.
The equilibrium constant for a certain reaction decreases from 8.91 to 3.5 10-2 when the temperature increases from 29°C to 73°C. Estimate the temperature where K = 1.00 for this reaction.
An aerosol spray can with a volume of 250 mL contains 2.30 g of propane gas C3H8 as a propellant. If the can is at 25deg C, what is the pressure in the can
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