What is the mass of 15mL sample of mercury?
Look up the density of mercury.
mass = volume x density. Make sure the density is in g/mL. If it isn't you will need to convert it. One place to find density of mercury is at www.webelements.com and click on element #80. I don't think the unit given there is in g/mL. If you have trouble converting please repost.
Actually, it isn't necessary for the density to be listed in g/mL PROVIDED you work the problem and report the correct units for mass. I think I overstated the importance of having the density in specific units.
I don't know i need help
No problem! I'll help you find the mass of a 15mL sample of mercury.
First, we need to know the density of mercury. The density of a substance is typically given in units of grams per milliliter (g/mL). Let's assume we have the density in a different unit, such as kilograms per cubic meter (kg/m³).
To convert the density to g/mL, you can use the following conversion factors:
1 kg = 1000 g
1 m³ = 1,000,000 mL
So, if the density of mercury is given, for example, as 13,456 kg/m³, you can convert it to g/mL as follows:
13,456 kg/m³ = 13,456 g / (1000 mL / 1,000,000 mL)
13,456 g / 1000 mL = 13.456 g/mL
Now that we have the density in the correct unit, we can determine the mass of the 15mL sample of mercury using the formula:
mass = volume x density
mass = 15 mL x 13.456 g/mL
mass = 201.84 g
So, the mass of the 15mL sample of mercury is approximately 201.84 grams.
If you provide me with the actual density of mercury, I can help you calculate the precise answer.