how much sugar is dissolved in 500 grams of a solution if the solution is 70 percent sugar by mass?

Also,

What is the concentration of a solution that contains 45 grams of sugar in 500 grams of solution?

thank you

Thank you DrBob222 for your kind help !! :)

70% of 500 g, since the 500 g "solution" is the sum of both sugar and water.

For the second problem,

[mass sugar/mass solution]*100 = percent by mass.

. A solution contains 45 grams of nitrogen(N2) gas and 40 grams of argon(Ar). What is the mole fraction of argon in this solution?

To find out how much sugar is dissolved in 500 grams of a solution that is 70 percent sugar by mass, you can follow these steps:

Step 1: Calculate the amount of sugar in the solution.
First, convert the percentage of sugar to a decimal by dividing it by 100:
70% sugar = 70/100 = 0.7

Then, multiply the decimal by the total mass of the solution:
0.7 * 500 grams = 350 grams

So, there are 350 grams of sugar dissolved in 500 grams of the solution.

Now, let's move on to the second question:

To find the concentration of a solution that contains 45 grams of sugar in 500 grams of solution, you can use the following formula:

Concentration = (Mass of solute / Mass of solution) * 100

Step 1: Calculate the mass of the solution.
The mass of the solution is given as 500 grams.

Step 2: Calculate the concentration.
Plug the values into the formula:
Concentration = (45 grams / 500 grams) * 100
Concentration = 9%

Therefore, the concentration of the solution is 9%.