We can solve this problem using the formula:
P2 – P1 = ρ g (h2 – h1)
where,
P2 = pressure of the gas manifold = ?
P1 = pressure of the outside air = 754 torr = 100,525 Pa
ρ = density of mercury = 13560 kg/m^3
h2 = height in gas manifold = 76.2 cm = 0.762 m
h1 = height in air = 23.8 cm = 0.238 m
So w can directly find for P2:
P2 = 13560 * 9.81 * (0.762 – 0.238) + 100,525
P2 = 170,229.37 Pa
Convert back to torr:
<span>P2 = 170,229.37 Pa = 1276.83 torr (ANSWER)</span>
Take a hypothetical sample of exactly 100 grams of the solution.
(16g urea) / (60.06 g urea/mol) = 0.2664 mol urea
((100 g total) - (16g urea)) = 84.0 g H2O = 0.0840 kg H2O
(0.2664 mol) /0.0840 (kg) = 3.17143mol/kg = 3.18m urea
Answer:
2. For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number.
3. in fact, electron mass is so small that it is not counted in an atom's mass
Explanation:
Answer:
A
Explanation:
I just did learned all about this
Explanation:
The boy with the help of litmus paper can easily decide it as follows:
(i) The drink that would turn a red litmus to blue would surely be basic in nature.
(ii) The drink that turns a blue litmus to red is be acidic in nature.
(iii) The drink that would not be affected by both red and blue litmus would is neutral in nature.
The test can be done with help of phenolphthalein or the methyl orange these reagents also show different color in different medium.
