Acids and bases are fairly important for the fact that they are very essential to the human body. As well as they balance the Ph levels in our body. You can use acids and bases to nurtralize eachother aswell
Answer:
Explanation:
H3PO4(aq) + 3NaOH(aq) → Na3PO4(aq) + 3H2O(l)
mole of NaOH = 23.6 * 10 ⁻³L * 0.2M
= 0.00472mole
let x be the no of mole of H3PO4 required of 0.00472mole of NaOH
3 mole of NaOH required ------- 1 mole of H3PO4
0.00472mole of NaOH ----------x
cross multiply
3x = 0.0472
x = 0.00157mole
[H3PO4] = mole of H3PO4 / Vol. of H3PO4
= 0.00157mole / (10*10⁻³l)
= 0.157M
<h3>The concentration of unknown phosphoric acid is 0.157M</h3>
NH₃ + H₂O ⇄ NH₄⁺ + OH⁻
pOH=-lg[OH⁻]
pOH = 14-pH
14-pH = -lg[OH⁻]
[OH⁻]=10^(pH-14)
[OH⁻]=10^(11.8-14)=0.00631 = 6.31·10⁻³ mol/L
The answer to your question is ( Protons and neautrons)
Answer:
3
Explanation:
you must multiply everything out till everything is equal on both sides