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Chemistry
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Explain how a buffer solution controls pH

Equilibrium: 

BH <--> H+ + B-

alkali reacts with H+, so equilibrium shifts to right to buffer change

acid reacts with B- to form BH, so equilibrium shift...

GS
Answered by George S. Chemistry tutor
5234 Views

A student titrates 25.00 cm3 of hydrochloric acid with 28.60 cm3 sodium hydroxide solution of concentration 0.200 moles per dm3. The equation for the reaction is: HCl + NaOH to NaCl + H2O. Calculate the concentration of the hydrochloric acid.

From the equation given in the question we can see that one mole of hydrochloric acid (HCl) reacts with one mole of sodium hydroxide (NaOH). 

The first thing to do is to work out the numb...

HA
Answered by Hannah A. Chemistry tutor
21320 Views

How do I test for the presence of a carboxylic acid?

 

Add NaHCO3 or K2COthe reaction will produce COi.e Bubbles!

KD
Answered by Katie D. Chemistry tutor
6328 Views

What is a chiral carbon?

A carbon atom bonded to 4 different groups.

KD
Answered by Katie D. Chemistry tutor
5998 Views

Define relative atomic mass.

Relative atomic mass is the average mass of an atom of an element, relative to 1/12 the mass of carbon-12.

AO
Answered by Aisha O. Chemistry tutor
12411 Views

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