the percent of hydrogen by mass in HNO3 is 1.600%
Answer:
Transformation is into a different type of energy Ex: chemical to physical
Transfer is going to a to a place Ex: door knob to you
Explanation:
Plz brainliest
Thanks
5stars
Answer:
Synthesis :SO3 + H2O —> H2SO4
Single displacement : Pb(NO3)2 + 2NaI —> PbI2 + 2NaNO3
Decomposition : CaCO3 —> CaO + CO2
Combustion : 2ZnS + O2 —> 2ZnO + 2S
Explanation:
The balanced chemical reaction is:
<span>Mg(OH)2 + 2HCl
--> MgCl2 + 2H2O</span>
So we can see that 2 moles of HCl reacts for every 1 mole
of Mg(OH)2.
moles HCl left = 0.125 M * 0.150 L – (0.125 M * 0.040 L) *
2
moles HCl left = 0.00875 mol
So the concentration of H+ ion is:
[H+] = 0.00875 mol / (0.150 L + 0.040 L)
[H+] = 0.046 M
So the pH is:
pH = - log 0.046
<span>pH = 1.34</span>
Explanation:
For this question I would suggest reading the passages that are included in the assignment.
