# chemistry

posted by .

The mass of one penny is 2.51 grams and its volume is 0.40 cubic centimeter. The density in g/ml of this penny is

• chemistry -

density=mass/volume or

volume=mass/density

• chemistry -

1.00

• chemistry -

• chemistry -

6.28

• chemistry -

How did u get 6.28

## Similar Questions

1. ### Chem

Based on the number of atoms per unit cell and the mass of the atom, the mass of the unit cell can be calculated. The density of the unit cell and the material as a whole can be determined from the mass and the volume of the unit cell …

How would i calculate the density of Li2S in grams per cubic centimeter?
3. ### chemistry

An aluminum engine block has a volume of 4.86 L and a mass of 12.75 kg. What is the density of the aluminum in grams per cubic centimeter?
4. ### Density

A new penny has a mass of 2.54 g and a volume of 0.354 cm3. Is the penny made of pure copper?
5. ### chemistry

15. On October 21, 1982, the Bureau if the Mint changed the composition of pennies. Instead of an alloy of 95% Cu and 5% Zn by mass, a core of 99.2 Zn and 0.8% Cu with a thin shell of copper was adopted. The overall composition of …
6. ### science

if you place a dime penny and quarter on a spinning turntable which coin has a greater speed than the penny than the penny
7. ### Physic

In a dramatic lecture demonstration, a physics professor blows hard across the top of a copper penny that is at rest on a level desk. By doing this at the right speed, he can get the penny to accelerate vertically, into the airstream, …
8. ### Chemistry

the current U.S. penny is only 2.5% copper the remaining portion is zinc. Given the density of copper as 8.94 g/cm and the density of zinc is 6.57 g/cm, calculate the density of a penny.
9. ### math

Sara brought a total of 8 nails at ace hardware . she purchased both 6 penny nails and 10 penny nails . she brought 2 more 6 penny nails then she did 10 penny nails . she had a total of 8 mails. How many 6 penny and 10 penny nails …