The first one will be A. The second one is B.
Answer:
pH = 6.5
Explanation:
Given data:
pH of substance = ?
[OH⁻] concentration = 3.2×10⁻⁸
Solution:
pOH = -log[OH⁻]
pOH = -log[3.2×10⁻⁸]
pOH = 7.5
we know that,
pH + pOH = 14
pH = 14- pOH
pH = 14 - 7.5
pH = 6.5
Answer:
5 fig Hope this helps!
I hate asking for things, but may I have brainliest I'm trying to rank up.
Explanation:
Sig Figs
5
Decimals
4
Scientific Notation
2.3400 × 100
Words
two point three four
Answer:
Ketone.
Explanation:
Alkynes experience additions of water catalyzed by acids, across the triple bond in the presence of <u>mercuric ion as a catalyst</u>. Generally, a mixture of mercuric sulfate and aqueous sulfuric acid is used.
Under acidic conditions, mercury is replaced by hydrogen to form a vinyl alcohol, called enol.
<u>Enoles tend to be unstable</u> and isomerize in ketones. This quick equilibrium is known as the keto-enol tautomerism.
Sodium Carbonate(NaCO3) gives off heat hence the reactions involving Na2CO3 are exothermic.
Hope this helps!