Answer:
<h2>The answer is 35 mL</h2>
Explanation:
Density of a substance can be found by using the formula
From the question we are finding the amount of space the gas will occupy that's the volume of the gas
Making volume the subject we have
From the question
mass = 23.8 g/mL
Density = 0.68 g/mL
Substitute the values into the above formula and solve
That's
We have the final answer as
<h3>35 mL</h3>
Hope this helps you
Answer:
0.6 grams of hydrogen are needed to react with 2.75 g of nitrogen.
Explanation:
When hydrogen and nitrogen react they form ammonia.
Chemical equation:
N₂ + 3H₂ → 2NH₃
Given mass of nitrogen = 2.75 g
Number of moles of nitrogen:
Number of moles = mass/ molar mass
Number of moles = 2.75 g / 28 g/mol
Number of moles = 0.098 mol
Now we will compare the moles of nitrogen with hydrogen from balance chemical equation:
N₂ : H₂
1 : 3
0.098 : 3×0.098 = 0.3 mol
Mass of hydrogen:
Mass = number of moles × molar mass
Mass = 0.3 mol × 2 g/mol
Mass = 0.6 g
Answer:
Your diaphragm contracts and expands
Answer: Option (A) is the correct answer.
Explanation:
A weak acid is defined as a substance which dissociates partially into a solvent. This also means that most of the molecules of a weak acid solution remain insoluble in nature.
A solution in which solute particles completely dissociate into ions in a solvent is known as a strong electrolyte.
Whereas a solution in which solute particles partially dissociate into ions is known as a weak electrolyte.
A molecular compound is a covalent compound and as like dissolves like. So, molecular compounds are not soluble in polar solvent like water.
Therefore, we can conclude that the true statement is weak acid solution consists of mostly insoluble acid molecules.
