Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Question #e0bf1

1 Answer

Apr 28, 2017

We have $15 \times 0.2 = 3.0 m m o l$ $15xx0.2=3.0mmol$ reacting with $10 \times 0.15 = 1.5 m m o l$ $10xx0.15=1.5mmol$

Explanation:

So the mol ratio is $3.0 \div 1.5 = 2$ $3.0div1.5=2$

Since phosphoric acid does not easily give off its third proton, and if the hydroxide were sodium hydroxide, the most likely equation would be:

$2 N a O H + H_{3} P O_{4} \to N a_{2} H P O_{4} + 2 H_{2} O$ $2NaOH+H_3PO_4->Na_2HPO_4+2H_2O$

Or: $2 O H^{-} (a q) + H_{3} P O_{4} (a q) \to H P O_{4}^{2 -} (a q) + 2 H_{2} O (l)$ $2OH^(-)(aq) +H_3PO_4(aq)->HPO_4^(2-)(aq) +2H_2O(l)$

With (di)sodium (mono)hydrogen phosphate as the resulting salt.

Related questions

See all questions in Neutralization

Impact of this question

1637 views around the world

You can reuse this answer
Creative Commons License