Answer:
Density is increased
Explanation:
I took a test and that was the correct answer :)
Answer: D. all the empirical evidence available.
Explanation:
Answer:
D
Explanation:
Answer: The molecular weight of the dibasic acid is 89.6 g/mol
Explanation:
Normality is defined as the amount of solute expressed in the number of gram equivalents present per liter of solution. The units of normality are eq/L. The formula used to calculate normality:
....(1)
We are given:
Normality of solution =
Given mass of solute = 0.56 g
Volume of solution = 250 mL
Putting values in equation 1, we get:
Equivalent weight of an acid is calculated by using the equation:
.....(2)
Equivalent weight of acid = 44.8 g/eq
Basicity of an acid = 2 eq/mol
Putting values in equation 2, we get:
Hence, the molecular weight of the dibasic acid is 89.6 g/mol
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Answer:
Thermohaline Circulation
Explanation:
The process is known as “Thermohaline Circulation”. In the Earth’s polar regions ocean water gets very cold, forming sea ice. As a consequence the surrounding seawater gets saltier, because when sea ice forms, the salt is left behind. As the seawater gets saltier, its density increases, and it starts to sink.
Answer:
Chemist John Dalton
b. Zero
c. No right choice.
a. Negative
Explanation:
We have to look at its oxidation (burning, explosion) of TNT:
4 C₇H₅N₃O₆ + 21 O₂ → 28 CO₂ + 10 H₂O + 6 N₂ + heat
So trinitrotoluene need more oxygen atoms that is have to be fully oxidized so the oxygen balance will be negative.
An empirical formula with which you calculate the oxygen balance percent (OB %) is:
OB % = (-1600 / molecular wight) × [2X + (Y/2) + M - Z)
were
X = number of carbon atoms
Y = number of hydrogen atoms
M = number of metal atoms
Z = number of oxygen atoms
For TNT:
OB % = (-1600 / 227.13) × [2×7 + (5/2) + 0 - 6)
OB % = -73.97 %
So the oxygen balance percent is negative.
Learn more about:
oxidation of TNT
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