A solution made up of 20ml of mythl alcohol and 50ml of water. What is the volume percent of ethyl alcohol in solution.
To find the volume percent of ethyl alcohol in the solution, we need to calculate the volume of ethyl alcohol present in the solution and then determine what percentage it is of the total volume.
Given:
Volume of methyl alcohol (assumed to be ethyl alcohol): 20 ml
Volume of water: 50 ml
Step 1: Calculate the total volume of the solution:
Total volume = Volume of methyl alcohol + Volume of water
Total volume = 20 ml + 50 ml
Total volume = 70 ml
Step 2: Calculate the volume of ethyl alcohol:
Since the volume of methyl alcohol is assumed to be the same as ethyl alcohol, the volume of ethyl alcohol is also 20 ml.
Step 3: Calculate the volume percent of ethyl alcohol:
Volume percent = (Volume of ethyl alcohol / Total volume) * 100
Volume percent = (20 ml / 70 ml) * 100
Volume percent = 0.2857 * 100
Volume percent = 28.57%
Therefore, the volume percent of ethyl alcohol in the solution is approximately 28.57%.
To find the volume percent of ethyl alcohol in the solution, we need to determine the amount of ethyl alcohol present in the mixture.
Step 1: Calculate the volume of ethyl alcohol present.
Since the total volume of the solution is 20 mL of methyl alcohol plus 50 mL of water, the total volume is 70 mL.
To find the volume of ethyl alcohol, we take into account that the solution has a density of 1 g/mL, and the density of the ethyl alcohol is 0.79 g/mL.
Let x be the volume of ethyl alcohol in mL.
In terms of volume, we can set up the following equation:
x(0.79 g/mL) = (70 mL - x)(1 g/mL)
Simplifying the equation:
0.79x = 70 - x
0.79x + x = 70
1.79x = 70
x = 70 / 1.79
Step 2: Calculate the volume percent of ethyl alcohol.
The volume percent is the ratio of the volume of ethyl alcohol to the total volume of the solution, multiplied by 100.
Volume percent = (volume of ethyl alcohol / total volume of solution) * 100
Volume percent = (x / 70) * 100
Now, substitute the value of x into the equation:
Volume percent = (70 / 1.79) / 70 * 100
Calculating the value:
Volume percent = (38.99) / 70 * 100
Volume percent ≈ 55.7%
Therefore, the volume percent of ethyl alcohol in the solution is approximately 55.7%.