The battery gives energy to the connected light and switch, and the switch controls the light.
Question 4 4. Rubber, oxygen and paper are all made up of A. atoms B. chlorine C. carbon D. animal cells Question 5
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Answer: Concentration of the chemist's sodium chloride solution is 34.4 mol/L.
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
n= moles of solute
= volume of solution in ml
Given : moles of = 6.89
volume of solution = 200 ml
Putting in the values we get:
Thus the concentration of the chemist's sodium chloride solution is 34.4 mol/L.