The correct answer for the question that is being presented above is this one: "B) Temperature."
Here are the following choices:
A) all of these measurements are needed
B) Temperature
C) Molar Mass
D) Pressure
E) Mass
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Answer:
1.9 x 10⁻¹³M
Explanation:
Given 0.027M Ca(OH)₂(aq) => 0.027M Ca⁺²(aq) + 2(0.027M) OH⁻(aq)
2(0.027M) OH⁻(aq) = 0.054M OH⁻(aq).
from [H⁺][OH⁻] = 1 x 10⁻¹⁴ at STP Conditions (0°C, 1Atm)
∴{H⁺] = [H₃O⁺] = (1 x 10⁻¹⁴/0.054)M = 1.85 x 10⁻¹³M or 1.9 x 10⁻¹³at 0°C & 1Atm pressure.
Answer:A and B
Explanation:
A substance is said to be polar when it is having a dipole (a delocalised positive and negative charge) or it is ionic (dissociate into ions when dissolved in water)
Answer:
3564 = 3.564 x 10^3
Explanation:
i.e expresing the value in standard form.
