Chem question! :(

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1

<p>I'm confused..</p>

<p>++Which of the following does NOT react with a dilute H2SO4 solution?
NaNO3
Na2S
Na3PO4
Na2CO3
NaOH</p>

<p>the answer's NaNO3, but I don't know why :(</p>

<hr>

<p>++ A 0.1 molar solution of which of the following compunds has the lowest hydrogen ion concentration?
a) HCl
b) AlCl3
c) NaHCO3
d) NaOH
e) HC2H3O2 (acetic acid)</p>

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<p>Thanksmuchos<3*</p>

2

<p>i have no idea for the first question
wikipedia says H2SO4 reacts with KNO3, so I dont know why it wouldnt react with NaNO3</p>

<p>for the second one, NaOH is a base. [H][OH]=10^-14, so increasing OH concentration (by adding NaOH) lowers H concentration</p>

3

<p>bump
does anyone know answer to first question?
I'm taking chem tomorrow</p>

4

<p>i think it was something to do with the solubility rules</p>

5

<p>But what wouldn't be soluble? HNO3?
Aren't all NO3's soluble, though?</p>

6

<p>I think it's because HNO3 is a strong acid, which means it completely dissociates in solution, which means it won't form</p>

7

<p>I'm not too sure about this, but it may be because NaNO3 is a neutral salt, but everything else is either a basic salt or a base.</p>

8

<p>In all the other answer choices, the H+ ion from H2SO4 will react to form weak acids or neutralize and become H2O. NaNO3 will not react b/c it cannot form an acid (HNO3 is strong) or anything else</p>