If the net force on an object is 0 N, the forces are considered unbalanced. :true or false?
1 answer:
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Answer:
0.928 M
Explanation:
The concentration of acid can be determined by using the volume used and the concentration and volume used of base.
We will use the law of equivalence of moles.
M₁V₁=M₂V₂
M₁ = concentration of base used
V₁ = volume of base used
M₂ = concentration of acid used =? (to be determined)
V₂ = volume of acid used
The initial concentration of KOH used is diluted so let us find the final concentration of KOH after dilution
initial moles = final moles
initial concentration X initial volume = final concentration X final volume
6.2 X 2.1 = 250 X final concentration
final concentration = 0.052 M = M₁
V₁ = 36.9 mL
V₂ = 6.2 mL
Here with each mole of phosphoric acid three moles of KOH are used.
Therefore
3 M₁V₁ = M₂V₂
M₂ =
The number of molecules of gases in each of the 3 vessels is the same.
<h3>Number of moles</h3>The first vessel contains 2g of gas:
Number of molecules in 2 g = 2/2 = 1 mole
The second vessel contains 32 g of gas:
Number of molecules = 32/32 = 1 mole
The third vessel contains 44 g of gas:
Number of molecules = 44/44 = 1 mole
Thus, the 3 vessels contain the same number of moles of gases.
More on the number of moles can be found here: brainly.com/question/12513822
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