Answer: (a) NH3 + H20 ⇔ NH4⁺ + OH⁻ Kb =
(b) CN⁻ + H20 ⇔ HCN⁺ + OH⁻ Kb =
(c) C5H5N + H20 ⇔ C5H5NH⁺ + OH⁻ Kb =
(d) C6H5NH2 + H20 ⇔ C6H5NH3⁺ + OH⁻ Kb =
Explanation: There are ways to calculate the strength of acids and bases. The pH is more commom but there is pKa, pKb, Ka and Kb. Ka and Kb are the dissociation constant for acids and bases, respectively.
Using the balanced equation of dissociation, Kb is calculated by dividing the concentration of the products with the concentration of the reagent.
There are 6.33 × 10²⁵ hydrogen atoms in this solution in total.
<h3>Explanation</h3>
- There are two hydrogen atoms in each water molecule.
- There are three hydrogen atoms in each ammonia molecule.
2.10 × 10²⁵ water molecules and 7.10 × 10²⁴ ammonia molecules will contain
hydrogen atoms in total.
The common substance among the product(s) of the first equation and among the reactant(s) in the second equation is H2O(g). We can eliminate that as an intermediate. The overall chemical equation will thus be:
CH4(g) + 2O2(g) → CO2(g) + 2H2O(l),
which is the first answer choice.
In essence, all you’re doing here is swapping water vapor for liquid water.
Answer: 650 moles
Explanation: so converted in grams just to make it easy for me, its 5850 g of water right, which is 325 moles of water
so here's the balanced equation
MgCl2 + H20 ==> 2HCl + MgO
thus 1 mole of h20 gives us 2 moles of hcl, so 325 x 2 = 650 moles of hcl