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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Roni on January 04, 2022, 06:39:19 PM

Title: Calculate how to make 20 ml of a solution of NH₄Cl with pH = 5.0
Post by: Roni on January 04, 2022, 06:39:19 PM

Hello guys! I am having a bit of trouble with the question my chemistry teacher has given me.

The question sounds as follows:
Calculate how to make 20 ml of a solution of NH₄Cl with pH = 5.0

Thank you before hand.

Title: Re: Calculate how to make 20 ml of a solution of NH₄Cl with pH = 5.0
Post by: sjb on January 05, 2022, 02:03:32 AM

Where have you got stuck? Any equations that you may know to help?

Title: Re: Calculate how to make 20 ml of a solution of NH₄Cl with pH = 5.0
Post by: Orcio_87 on January 05, 2022, 10:29:49 AM

Quote

Calculate how to make 20 ml of a solution of NH₄Cl with pH = 5.0

1. Write the equation of reaction of NH₄Cl (or simply - NH₄⁺) with the water.
2. Calculate the reaction constant.
3. Calculate concentration of NH₄Cl at pH = 5,0.
4. Calculate the mass of NH₄Cl for 20 ml solution.