6. Sodium carbonate (1.3579 g) was dissolved in
deionized water to give a solution with a...
6. Sodium carbonate (1.3579 g) was dissolved in
deionized water to give a solution with a total volume of 250.0 mL.
What was the pH of the resulting solution? Hint: For
carbonic acid,
Sodium carbonate (2.4134 g) is dissolved in enough deionized
water to give a solution with a total volume of 250.0 mL. What is
the pH of the resulting solution? Hint: For carbonic acid,
pKa1 = 6.351 and pKa2 =
10.329. What is the equilibrium concentration of
H2CO3 in the solution? calculate the value of
alpha HCO3-
Sodium carbonate (2.4134 g) is dissolved in enough deionized
water to give a solution with a total volume of 250.0 mL. What is
the pH of the resulting solution? Hint: For carbonic acid, pKa1 =
6.351 and pKa2 = 10.329. What is the equilibrium concentration of
H2CO3 in the solution? calculate the value of alpha HCO3-
Sodium carbonate (1.3579 g) was dissolved in deionized water to
give a solution with a total volume of 100.0 mL. What was the pH of
the resulting solution?
sodium bicarbonate 10 g sodium carbonate 12.72 g, add-50 ml of
deionized water to the beaker and stir until all of the weak acid
or weak base has dissolved. Carefully and slowly pour the weak acid
or weak base solution into the volumetric flask.
preparation of Buffer
pour your weak acid and your weak base together into a
bottle.
How many grams of sodium bicarbonate (M.W.= 84.01 g/mole) would
you have had to weigh out to make up 500ml of...
An unknown mass of sodium hydroxide is dissolved in 500 g of
water. This solution is neutralized by adding successively 18 g of
CH3COOH, 25.2 g HNO3, and 29.4 g of H2SO4. Determine
a) the mass of NaOH
b) the mass of H2O in the neutral solution.
A solution is prepared by dissolving 11.6 g of a mixture of
sodium carbonate and sodium bicarbonate in 1.00 L of water. A 300.0
cm3sample of the solution is then treated with excess HNO3 and
boiled to remove all the dissolved gas. A total of 0.940 L of dry
CO2 is collected at 298 K and 0.972 atm.
1. Find the molarity of the carbonate in the solution.
2. Find the molarity of the bicarbonate in the solution.
A 29.0-g sample of NaOH is dissolved in water, and the solution
is diluted to give a final volume of 1.60 L. The molarity of the
final solution isA) 18.1 M B) 0.453 M C) 0.725 M D) 0.0552 M E)
0.862 M
A sample of sodium carbonate unknown is dissolved in 50.0 mL of
water. After performing experiment 3, the student determines that
the second equivalence point occurs at 32.86 mL of 0.1115 M HCl.
What is the theoretical pH of the solution after 16.43 mL of HCl
has been added. Report your answer to two significant figures.
(HINT - refer to the lab procedure and posted notes for the correct
way to approach this problem)
A solution containing 5.50 g of sodium carbonate is mixed with
one containing 6.50 g of silver nitrate. After the reaction is
complete, the solutions are evaporated to dryness, leaving a
mixture of salts. How many grams of each of the following compounds
are present after the reaction is complete?
A solution of heparin sodium, an anticoagulant for blood, contains
1.8 g of heparin sodium dissolved to make a final volume of 15 mL
of solution. What is the mass/volume percent concentration of this
solution?