Answer:
2.7 mol H2O
Explanation:
Multiply by molar mass of water.
Answer: 0.256 g
Explanation:
The deposition of Ga from Ga(III) solution
According to mole concept:
1 mole of an atom contains 
number of particles.
We know that:
Charge on 1 electron = 
Charge on 1 mole of electrons = 
where,
I = current passed = 0.590 A
q = total charge = ?
t = time required = 30.0 min = 1800 s (1min=60s)
Putting values in above equation, we get:
will deposit = 70 g of Gallium
will deposit = 
of Gallium
Thus 0.256 g of Ga(s) that can be deposited from a Ga(III) solution using a current of 0.590 A that flows for 30.0 min.
Well you see its part sodium and sodium is another word for salt so It is a salt because it is formed by the reaction of an acid and a base
<h3><u>Answer</u>;</h3>
H2O -Bronsted Acid
<h3><u>Explanation;</u></h3>
- Bronsted-Lowry acids are H+ donors
, while Bronsted-Lowry bases are H+ acceptors
.
- A reaction of a Bronsted-Lowry acid and a Bronsted base is a neutralization reaction that is characterized by H+ transfer.
- The above reaction is an example of base ionization or dissociation where;
B (aq) + H2O (l) → BH+ (aq) + OH– (aq)
That is; Base + Acid will give a conjugate acid + hydroxide ion
- In our case; NO2- + H2O → HNO2 + OH- ; H2O is the H+ donor and thus, it is a Bronsted Acid.
Answer:
2.6 kJ
Explanation:
The formula for the amount of heat (q) absorbed by the water is
q = mCΔT
1. Calculate ΔT
ΔT = 23.5 °C - 22.1 °C = 1.4 °C
2. Calculate q
q₂ = mCΔT = 500 g × 4.184 J·°C⁻¹g⁻¹ × 1.4 °C = 2900 J = 2.9 kJ
