15 cubic centimeter of (CH3COOH) was dissolved in water to make 500 cubic centimeter of solution. calculate the concentration of the solution in moles per litre (C=12 H=1 O=16 density of ethanoic acid =1.05g/cm^3)
15cm^3 * 1.05 g/cm^3 * 1M/60g = 0.2625M
0.2625M / 0.5L = 0.525M/L
correct for significant digits ...
17.5
To calculate the concentration of the solution in moles per liter (M), you need to determine the number of moles of acetic acid (CH3COOH) present in the 15 cubic centimeters (cm^3) solution, and then convert it to moles per liter.
First, let's calculate the number of moles of acetic acid using the given volume and density. The formula to calculate the number of moles is:
moles = mass / molar mass
1. Calculate the mass of acetic acid:
mass = volume × density
mass = 15 cm^3 × 1.05 g/cm^3
Note: The volume and density are given in cubic centimeters (cm^3), so the mass will be in grams (g).
2. Determine the molar mass of acetic acid (CH3COOH):
molar mass = (12 × 2) + (1 × 4) + (16 × 2)
molar mass = 24 + 4 + 32
Now, you have the mass of acetic acid in grams and its molar mass in grams per mole (g/mol). Using these values, you can calculate the number of moles.
3. Calculate the moles of acetic acid:
moles = mass / molar mass
Next, convert the volume of the solution to liters.
4. Convert volume from cm^3 to liters:
volume (L) = volume (cm^3) / 1000
Finally, calculate the concentration of the solution in moles per liter (M).
5. Calculate the concentration:
concentration (M) = moles / volume (L)
By following these steps, you can calculate the concentration of the solution in moles per liter (M).