Posted by **Anonymous** on Friday, April 2, 2010 at 8:09am.

a) The element with the greatest density is osmium, which has a density of 22.6g/cm3. calculate the mass of 32.1 cm3 of osmium.

Answer: 22.6g x 32.1 = 725.46

Did I have right answer?

b) A team of students determined the density of a sample of wood to be 0.52g/cm3. A handbook of chemistry reported the density of 0.548g/cm3 for the same type of wood. what is the percent error of the students value?

anser:(0.548 - 0.52) / 0.548 x 100 = 5.1%

Can someone check my answer for me?

- Chemistry -
**DrBob222**, Friday, April 2, 2010 at 11:31am
B is ok.

A is exactly correct; however, you have too many significant figures in the answer. You are allowed only 3 (both 32.1 and 22.6 have three); therefore, you are allowed just 3. Thus, I would round the answer to 725 AND I would put a unit on it of "grams."

- Chemistry -
**Dobson**, Sunday, April 4, 2010 at 6:25pm
a) mass 32.1 / density 22.6 = volume answer: 1.42g volume

## Answer This Question

## Related Questions

- Dobson - a)The element with the greatest density is osmium, which has a density ...
- Chemistry AP-Density - The density of osmium is 22.57g/cm3. If a 1.00kg ...
- ***CHEMISTRY HELPPPP!!!! - (b) The density of platinum is 23.4 g/cm3 at 20°C. ...
- Math/Chem - Very EASY - What volume of lead (of density 11.3 g/cm3) has the same...
- Chemistry Science - A sample of the element ygfjygg m has a mass of 5.6 g +/- .1...
- Chemistry;HELP - Use the 5-step method and be sure to include units where ...
- HELP!! Chemistry - 1. Calculate the density of a material that has a mass of 52....
- chemistry - water has a density of 1g/cm3 ; if 2 different pieces of the wood ...
- Chemistry - Silver has a density of 10.5 g/cm3 and gold has a density of 19.3 g/...
- physic - A 16 g piece of glass floats in bromoform (density = 2.89 g/ cm3) but ...

More Related Questions