I have this problem....

Hexane has a density of 0.659 g/ml. How many milliliters (mL) would a student need to pour in order to get 49.5 g of hexane?

Am I to solve by using mass = density x volume? And if so, is the answer 32.62mL?

yes and no.

mass = volume x density
45.9g = volume x 0.695
Solve for volume. That answer is not 32.62 mL but more than twice that.

Okay, I think I got it! Thanks a bunch :)

Yes, you are correct. To solve this problem, you can use the formula: mass = density x volume.

Given:
Density of hexane = 0.659 g/ml
Mass of hexane needed = 49.5 g

To find the volume (in milliliters), rearrange the formula as follows:
Volume = mass / density

Substituting the given values:
Volume = 49.5 g / 0.659 g/ml

Now, calculate the volume:
Volume = 75.04 ml

Therefore, the student would need to pour approximately 75.04 mL of hexane in order to obtain 49.5 g of hexane, not 32.62 mL as you mentioned.

Yes, you are correct! To solve this problem, you can use the formula:

mass = density x volume

Given that the density of hexane is 0.659 g/ml and you want to find the volume in milliliters (mL) to obtain 49.5 g of hexane, you can rearrange the formula to solve for volume:

volume = mass / density

Now let's substitute the given values into the formula:

volume = 49.5 g / 0.659 g/ml

Calculating this, we get:

volume = 75.11 ml

Therefore, the student would need to pour approximately 75.11 mL of hexane to obtain 49.5 g of it. So, the answer is not exactly 32.62 mL.