Question

Q. Write products and equations for the following:
(a) When sulphuric acid reacts with sodium hydroxide.
(b) When copper oxide reacts with sulphuric acid.
(c) When sodium hydroxide reacts with phosphoric acid.

Answer 1

Answer:

(a).when sulphuric acid react with sodium hydroxide produce sodium sulphate and release water.

(b).

Answer 2

Here's ur answer buddy!!

Ans.(a): We need to combine sulfuric acid and sodium hydroxide to produce sodium sulfate and water. H2SO4 + NaOH ----> Na2SO4 + H2O. This is the skeleton equation; it shows us what the reactants and products are, but not their coefficients, i.e. how many of each molecule we need to complete the reaction.

And.(b): Copper does not react with dilute sulphuric acid as its reduction potential is higher than that of hydrogen. Copper does not displace hydrogen from non-oxidising acids like HCl or dilute H2SO4. ... So, when copper is heated with conc.H2SO4, a redox reaction occurs and the acid gets reduced to sulphur dioxide.

And.(c): H3PO4 + 2NaOH → Na2HPO4 + 2H2O

[ Check the balance]

Phosphoric acid react with sodium hydroxide to produce sodium hydrogen phosphate and water. Phosphoric acid and sodium hydroxide - diluted solutions.

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