Calculate the mass of 6.9 moles of nitrous acid (HNO2). Explain the process or show your...

Question

Question

Calculate the mass of 6.9 moles of nitrous acid (HNO2). Explain the process or show your work by including all values used to determine the answer.

Answer 1

✔ Recommended Answer

Answer #1

Molar mass of HNO2,

MM = 1*MM(H) + 1*MM(N) + 2*MM(O)

= 1*1.008 + 1*14.01 + 2*16.0

= 47.018 g/mol

use:

mass of HNO2,

m = number of mol * molar mass

= 6.9 mol * 47.02 g/mol

= 3.244*10^2 g

Answer: 3.2*10^2 g

Answer 2

Similar Homework Help Questions

You have nitrous acid, HNO2, Ka=4.0 x 10-4 Calculate the pH of the solution and calculate...

You have nitrous acid, HNO2, Ka=4.0 x 10-4 Calculate the pH of the solution and calculate the concentration of HNO2 and its conjugate base in a 0.025 M HNO2 Solution. Please please show all work!
In a 7.50 M nitrous acid (HNO2) solution, calculate (H+). Nitrous acid is a weak acid...

In a 7.50 M nitrous acid (HNO2) solution, calculate (H+). Nitrous acid is a weak acid with K = 4.00 x 10 at 25°C. 3.98 x 102 M-
Calculate the base/acid ratio that should be used to prepare a buffer from nitrous acid (HNO2)...

Calculate the base/acid ratio that should be used to prepare a buffer from nitrous acid (HNO2) with a pH of 4.00. The Ka Value of HNO2 is 4.5 * 10^-4

A chemistry graduate student is given 450. mL of a 0.90 M nitrous acid (HNO2) solution....

A chemistry graduate student is given 450. mL of a 0.90 M nitrous acid (HNO2) solution. Nitrous acid is a weak acid with K-4.5x10 . What mass o KNO2 should the student dissolve in the HNO2 solution to turn it into a buffer with pH-3.20? You may assume that the volume of the solution doesn't change when the KNO2 is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.
A chemistry graduate student is given 125. mL of a 0.90 M nitrous acid (HNO2) solution....

A chemistry graduate student is given 125. mL of a 0.90 M nitrous acid (HNO2) solution. Nitrous acid is a weak acid with Ka = 4.5 x 10-4. What mass of KNO, should the student dissolve in the HNO2 solution to turn it into a buffer with pH = 3.18? You may assume that the volume of the solution doesn't change when the KNO, is dissolved in it. Be sure your answer has a unit symbol, and round it to...
Give a mechanism for how HNO2 (nitrous acid) forms nitrosyl cation (NO+). Show the reaction of...

Give a mechanism for how HNO2 (nitrous acid) forms nitrosyl cation (NO+). Show the reaction of nitrosyl cation with cytidine.

A 1.00 L solution contains 22.52 g of nitrous acid, HNO2. What mass of sodium nitrite,...

A 1.00 L solution contains 22.52 g of nitrous acid, HNO2. What mass of sodium nitrite, NaNO2, should be added to it to make a buffer with a pH of 2.96? Ka (HNO2) = 4.0 × 10–4.
A 1.00 L solution contains 23.52 g of nitrous acid, HNO2. What mass of sodium nitrite,...

A 1.00 L solution contains 23.52 g of nitrous acid, HNO2. What mass of sodium nitrite, NaNO2, should be added to it to make a buffer with a pH of 2.36? Ka (HNO2) = 4.0 × 10–4.
A 1.00 L solution contains 15.52 g of nitrous acid, HNO2. What mass of sodium nitrite,...

A 1.00 L solution contains 15.52 g of nitrous acid, HNO2. What mass of sodium nitrite, NaNO2, should be added to it to make a buffer with a pH of 2.66? Ka (HNO2) = 4.0 × 10–4.

Exactly 100 mL of 0.15 M nitrous acid (HNO2) are titrated with a 0.15 M NaOH...

Exactly 100 mL of 0.15 M nitrous acid (HNO2) are titrated with a 0.15 M NaOH solution. Calculate the pH for the point at which 100 mL of the base has been added. Show all calculations