A solution of 00041 m of an unknown acid has a ph of 3195
A solution of 0.0041 M of an unknown acid has a pH of 3.195. Calculate the Ka value for the unknown acid, HA.
This was my exam question and I got it wrong. My answer : 1.31*10^-2
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A certain substance, intially present at 0.950 M, decomposes by first-order kinetics with a rate constant of 1.25 x10-2 mol m-1 s-1. calculate the time (in seconds) required for the system to reach a concentration of 0.431M
A torque of 18 N-m is applied to a rotating part. The moment of inertia is 0.078 kg-m2. How much time (in seconds) will it take to rotate the part 180°?
Which of the following is not one of the four conditions that normally must be met for revenue to be recognized according tothe revenue principle for accrual basis accounting?
Ddesign a program that calculates the total amount of a meal amount of a meal purchased at a restaurant. The program should ask the user to enter the charge for the food
The quantity of charge q (in coulombs) that has passed through a surface of area 1.90 cm2 varies with time according to the equation q = 8t3 + 8t + 6, What is the value of the current density
A small gasoline engine can put out 18,000 N-m/min of mechanical power. The engine is used to drive an electrical generator that is 80 percent efficient. 1 N-m = 2.78 X 10-4 W-h. Find the output of the generator in Watts.
What is the pH of a solution created by mixing 368.0 mL of 0.175 M Hydrochloric Acid, HCl, with 231.0 mL of 0.318 M Sodium Hydroxide, NaOH?
Why is a knowledge of accounting concepts and terminology useful to anyone in a business activity? Is there a difference between bookkeeping and accounting? Discuss.
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