Answer:
It should be kept upright not tilted.
Bulb should be surrounded from all sides by the substance of which the temperature is to be measured.
The bulb should not touch the surface of the container.
Hope this helps
Answer:
The speed is constant.
Explanation:
The equation for a straight-line graph is
<em>y</em> = m<em>x</em> + b
where m and b are constants.
m is the <em>slope</em> of the line and b is the <em>y-intercept.
</em>
If we change the variables, the equation becomes
<em>d</em> = m<em>t</em> + b
Since m is constant, so is the speed.
Well, Flammability is: What happens when combustible liquids (liquids that can burn) ignite (catch on fire) and burn easily at normal working temperatures.
Hope I helped!
- Amber
Answer:
pKb = 10.96
Explanation:
Tartaric acid is a dyprotic acid. It reacts to water like this:
H₂Tart + H₂O ⇄ H₃O⁺ + HTart⁻ Ka1
HTart⁻ + H₂O ⇄ H₃O⁺ + Tart⁻² Ka2
When we anaylse the base, we have
Tart⁻² + H₂O ⇄ OH⁻ + HTart⁻ Kb1
HTart⁻ + H₂O ⇄ OH⁻ + H₂Tart Kb2
Remember that Ka1 . Kb2 = Kw, plus pKa1 + pKb2 = 14
Kb2 = Kw / Ka1 → 1×10⁻¹⁴ / 9.20×10⁻⁴ = 1.08×10⁻¹¹
so pKb = - log Kb2 → - log 1.08×10⁻¹¹ = 10.96