True- the number of protons in an atom is also the atomic mass!!
Answer:
1.36 g.
Explanation:
First we calculate the molar mass of sodium acetate trihydtrate:
CH3COONa.3H2O
= 12 + 3 + 12 + 2*16 + 23 + 6 + 3*16
= 136 g.
So 1 L of 1 M solution contains 136 g
0.100 M solution will contain 13.6 g
100 mL of 0.100 M solution contains 1.36 g.
2. A materials opposition to the flow of electric charge. This is because a current is the flow and so an electrical current will be the flow of an electric charge.
Answer:
I believe the molecular formula is MnBr2·4H2O or Br2H8MnO4
Explanation:
Answer: Option (b) is the correct answer.
Explanation:
According to ideal gas law, the product of pressure and volume is equal to the product of number of moles, gas constant and temperature.
Mathematically, PV = nRT
So, when there are two gases with equal number of moles behaving ideally then the ideal gas equation will be as follows.
= 
and
= 
Hence, when temperature and pressure of both the gases will be constant then
= 1.
Thus, we can conclude that constant temperature and pressure is the conditions that must be met for a volume ratio to be created from a balanced chemical equation.