Answer:
37
Explanation:
Atomic mass is the sum of protons and neutrons in an atom.
Answer:
9.4L
Explanation:
Given parameters:
Mass of Cl₂ gas = 30g
Unknown:
Volume of gas = ?
Solution:
To solve this problem, let us assume that this reaction takes place under standard temperature and pressure conditions.
Therefore;
Volume of gas = number of moles x 22.4
To find the number of moles;
Number of moles =
molar mass of Cl₂ = 2(35.5) = 71g/mol
Number of moles = = 0.42mole
So;
Volume of gas = 0.42 x 22.4 = 9.4L
Answer:
d. less energy required
Explanation:
it said it in my book and i took the edg quiz
32.4moles
Explanation:
Given parameters:
Volume of solution = 9.54L
Molarity of solution = 3.4M
Unknown:
Number of moles of Na₂CO₃ = ?
Solution;
The molarity is the amount of substance or solute dissolved in a given solvent. It is the same as concentration.
To find the number of moles from the molarity, we use the expression below;
Number of moles = molarity x volume
Input the values;
Number of moles = 3.4 x 9.54 = 32.4moles
learn more:
Number of moles brainly.com/question/1841136
#learnwithBrainly
Answer:For a typical experiment, you should plan to repeat it at least three times (more is better).
Explanation: