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170 mL of an HCl solution with pH of 2.30 is added to 200 mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution?
The experimental value of nylon 6,10 is 2.160 grams. I need to calculate the theoretical mass of nylon 6,10, in order to find out the percent yield.
A buffer is prepared by mixing 295 mL of 0.210 M HCl with 584 mL of 0.559 M ammonia (NH3). Given that the Kb of NH3 is 1.8 x 10-5, calculate the pH of the solution.
A buffer solution contains 0.10 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L. (a) What is the pH of this buffer? (b) what is the pH of the buffer after the addition of 0.02 mol of KOH? (c) What is the pH of the buffer after the addi..
Some bacteria are able to harvest 1000-nm light. What is the energy (in kilocalories or kilojoules) of a mole (also called an einstein) of 1000-nm photons?
Which is the limiting reagent in the reaction between Copper sulfate pentahydrate and ammonia?
Which of the following factors affect the resolution (separation) of two compounds: (A) nature of the stationary phase; (B) eluent composition; (C) amount of sorbent used; (D) color of compounds being separated?
How many units would have been produced during the second quarter under Lean Production?
The average distance between planet X and Earth is about 2.59 x 108 miles. How long (minutes) would it take pictures transmitted from a space vehicle on Planet X's surface to reach Earth
What is the pH of a solution made up by adding 100 mL of 0.00010 M HCl to 50.0 mL of 1.0E-4 M NaOH
a.) Available Electrons (AE) b.) Needed Electrons (NE) c.) Geometry Description d.) Number of sigma bonds e.) bonding description f.) lewis dot structure
if a container can hold 2.0 gallons and 5.0 liters of water are added, how many more liters of water can be added to completely fill the 2.o gallon container? [ 1 gallon = 4 qts]
A sytringe contains 589 mL of CO at 325K and 1.2 atm pressure. A second sytringe contains 473mL of n2 at 298K and 2.6atm. What is the final pressure if the contents of tese two syringes are injected into a 1.00L container at STP
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