Question

lets calculate the molarity.
now that you know that 50.5 grams of sucrose is equal to 0.147 moles of sucrose, we need to use this information to find the molarity (the unit of measuring concentration). we can calculate the molarity (m) or concentration of a solution in moles / l if we know the volume of the solution in liters (l). lets say you mixed your 0.147 moles of sucrose into 0.0012 l of solution. report your answer to 2 significant figures.
what is the molarity of this solution?
molarity (m) = \frac{moles of solute}{liters of solution}
molarity is the amount of moles of a substance dissolved in a liter of solution (usually an aqueous or water - based solution).

Explanation:

Step1: Substitute the values into the formula

Molarity formula is \( M=\frac{\text{moles of solute}}{\text{liters of solution}} \). Here, moles of solute \( n = 0.147\) mol and liters of solution \( V=0.0012\) L. So, \( M=\frac{0.147}{0.0012}\).

Step2: Calculate the value

\(\frac{0.147}{0.0012}=\frac{147}{12}\) (multiplying numerator and denominator by 1000). \(147\div12 = 12.25\).

Step3: Round to 2 significant figures

\(12.25\approx12\) (since the first two non - zero digits are 1 and 2, and the next digit 2 is less than 5).

Answer:

\(12\)