Find the molar concentration of 57.9 g of potassiuum chlorate dissolved in 975 mL of water
my work
c=nv
(57.9/122.55)(975ml)
and i got 460 is this correct
To find the molar concentration of a solute in a solution, you need to calculate the number of moles of the solute and then divide it by the volume of the solution in liters.
Step 1: Calculate the number of moles of potassium chlorate (KClO3):
To do this, divide the mass of KClO3 (57.9 g) by its molar mass (122.55 g/mol):
Number of moles = 57.9 g / 122.55 g/mol ≈ 0.472 mol
Step 2: Convert the volume from milliliters (mL) to liters (L):
Given volume = 975 mL
To convert mL to L, divide by 1000:
Volume in liters = 975 mL / 1000 = 0.975 L
Step 3: Calculate the molar concentration (c) using the formula c = n/v:
Molar concentration = 0.472 mol / 0.975 L ≈ 0.485 M
So, the molar concentration of the potassium chlorate solution is approximately 0.485 M. Therefore, the value of 460 you obtained is not correct.