What mass in grams of NaNO2 (69.0 g / mol) will it be necessary to add...

Question

Question

What mass in grams of NaNO2 (69.0 g / mol) will it be necessary to add...

What mass in grams of NaNO2 (69.0 g / mol) will it be necessary to add to 250.0 ml of 0.200 M solution in HNO2 to produce a buffer of pH equal to 3.50

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

As buffer Plt=3.50 pka =3.15 [Salt] = x [Acid] =0.200M 698 019477x 2500 gm of Nano 27.7228 gm of NANOZ The pra value of HNO2

Add a comment

Answer 2

Similar Homework Help Questions

What mass in grams of NaNO2 (69.0 g / mol) will it be necessary to add...

What mass in grams of NaNO2 (69.0 g / mol) will it be necessary to add to 250.0 ml of 0.200 M solution in HNO2 to produce a buffer of pH equal to 3.50 ka = 7.1x10 ^ -4)
a. How much solid NaNO2 should you add to a solution of 850. mL of 0.200...

a. How much solid NaNO2 should you add to a solution of 850. mL of 0.200 M HNO2 to make a buffer with pH = 2.99? (The K. of HNO2 is 7.2 x 10) b. If you wanted to change the buffer solution you made in part (a) to solution with a buffer of pH = 4.10, what would you add, a strong acid or base? c. Pouradd-5.00 mt of 8.00 MHE to the solution: What is the new pH?...
How many grams (to the nearest 0.01 g) of NH4Cl (Mm = 53.49 g/mol) must be...

How many grams (to the nearest 0.01 g) of NH4Cl (Mm = 53.49 g/mol) must be added to 550. mL of 0.976-M solution of NH3 in order to prepare a pH = 9.15 buffer? What volume (to the nearest 0.1 mL) of 4.00-M NaOH must be added to 0.600 L of 0.300-M HNO2 to prepare a pH = 3.50 buffer?

How many grams of NaNO2 should be mixed with 20 mL of 0.5 M HNO2 to...

How many grams of NaNO2 should be mixed with 20 mL of 0.5 M HNO2 to buffer it at a pH of 3.50? The Ka for HNO2 is 7.1 x 10-4.
1.) A 1.00 L solution contains 18.52 g of nitrous acid, HNO2.What mass of sodium nitrite, NaNO2,...

1.) A 1.00 L solution contains 18.52 g of nitrous acid, HNO2.What mass of sodium nitrite, NaNO2, should be added to it to make a buffer with a pH of 2.76? Ka (HNO2) = 4.0 × 10–4. 2.) Calculate the change in pH when 0.310 mol H+ is added to 1.00 L of each of the following buffers. a) a 0.580 M solution of pyridine (py) containing 0.480 M pyH+ (CHANGE IN PH?) b)a 0.600 M solution of aniline (an) containing...
calculate the quantity (in grams) of the salt NaNO2 that should be added to 300 ml...

calculate the quantity (in grams) of the salt NaNO2 that should be added to 300 ml of a 0.50 M solution of a weak acid, HNO2 to make a buffer with a ph of 4.00

A 1.00 L solution contains 20.52 g of nitrous acid, HNO2.What mass of sodium nitrite, NaNO2, should...

A 1.00 L solution contains 20.52 g of nitrous acid, HNO2.What mass of sodium nitrite, NaNO2, should be added to it to make a buffer with a pH of 3.56? Ka (HNO2) = 4.0 × 10–4.
please help due tonight 10. What mass (in grams) of NaCl (molar mass = 58.4 g/mol)...

please help due tonight 10. What mass (in grams) of NaCl (molar mass = 58.4 g/mol) is needed to create 250.0 ml. of a 1.50 M NaCl solution (6 points)
1)A buffer solution was prepared by dissolving 3.95 g of sodium nitrite, NaNO2, in 150 mL...

1)A buffer solution was prepared by dissolving 3.95 g of sodium nitrite, NaNO2, in 150 mL of 0.200 M nitrous acid, HNO2. (Ka = 4.5 x 10-5). What is the pH of the buffer? 2) Consider a buffer CH3COOH/CH3COO–. Fill in the blank using the numbers corresponding to each species. CH3COOH CH3COO– OH– H+ Na+ H2O 1 2 3 4 5 6 Please note that choices can be used more than once. The basic component of the buffer is ....

A buffer solution consists of 0.10 M HNO2 and 0.20 M NaNO2. If 0.010 moles of...

A buffer solution consists of 0.10 M HNO2 and 0.20 M NaNO2. If 0.010 moles of sodium hydroxide are added to 200. ml the solution , what is the new pH of the solution (pKa (HNO2) = 3.40)?

What mass in grams of NaNO2 (69.0 g / mol) will it be necessary to add...

Homework Answers