The answer is 70 I guess. Hope this helps :)
Answer:
the pressure (torr) of theH₂ gas is 736.2 torr
Explanation:
Given that
The H₂ gas produced in a chemical reaction is collected through water in a eudiometer; during this process, the gas collected contains some droplets of water vapor along with these gas.
So; the total pressure in the eudiometer = Pressure in the H₂ gas - Pressure of the water vapor
Where;
= total pressure in the eudiometer = 760.0 torr
= Pressure in the H₂ gas = ???
= Pressure in the water vapor = 23.8 torr
Now:
=
+
-
= +
-
= -
+
= (- 23.8 + 760) torr
= 736.2 torr
Thus; the pressure (torr) of theH₂ gas is 736.2 torr
Hi im here to help!
Answer: a chemical reaction occurred because a new substance was formed with new properties!
Explanation: when u mix glue water and borax it forms into a new substance which is a chemical reaction
In a pack of CaCl2 and H2O, hydrolysis of Ca+2 will occur
This will result in formation of Ca(OH)2.
The reaction is exothermic in nature
so the balanced thermo-chemical equation will be
CaCl2(aq) + H2O (l) ---> Ca(OH)2 + 2HCl + Heat
In a pack of NH4NO3 and H2O hydrolysis of NH4+ will occur as
NH4NO3 (aq) + H2O(l) + Heat ---> NH4OH(aq) + HNO3 (aq)
It is an endothermic reaction