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21.3

**cm**/ 1.3**cm**= 16.38461538**cm**. Since the least number of significant figures is 2, the answer would be: 16**cm**.1 Answers · Science & Mathematics · 28/09/2010

1/λ = 1953

**cm**^-1 ∴ λ = 1/1953 = 5.12×10^-4**cm**= 5.12×10^-6 m = 5.12 μm (10^-6 m) = 5120...1 Answers · Science & Mathematics · 05/10/2014

### At what temperature will 2.30 mole of an idea gas in a 2.40L container exert a pressure of 1.85 atm?

**CM**'s approach is valid.. i like to "scale up" from STP - idk...2 Answers · Science & Mathematics · 26/11/2010

3.291 g/

**cm**^3 or g/mL With significant digits (if you are supposed to use it) 3 g/mL or 3g/**cm**^34 Answers · Science & Mathematics · 03/10/2011

Okay, well the fact that the volume is expressed in

**cm**^3 doesn't matter in terms of putting it into the equation, just in...1 Answers · Science & Mathematics · 10/06/2010

(30.5

**cm**x 3048**cm**) / (13.5**cm**x 9.5**cm**) x (0.69 g) / (26.98154 g Al/mol) x (6.022 x 10^23 atoms/mol) = 1.12 x 10^25 atoms Al ($5.49) / (1.12 x 10^25 atoms) = $4.90 x 10^-25 / atom Al1 Answers · Science & Mathematics · 06/05/2013

3.00

**cm**× 3.00**cm**× 0.725 dm = 0.03 m × 0.03 m × 0.0725 m = 6.525×10^-5 m^3; m = density*volume = 1.738×103 kg/m3 * 6.525×10^-5 m^3 = 0.113 kg.1 Answers · Science & Mathematics · 19/09/2013

...careful about units i.e. you can't multiply volume in

**cm**^3 and density in kg/m^3 and expect a good answer, you 1st... (1000**cm**^3) or water. Density of sugar = 1.6 g/**cm**^3, water is 1 g/**cm**^3 So mass of sugar is...1 Answers · Science & Mathematics · 10/07/2017

First, Calculate the volume of the gold ingot. 2.00

**cm**× 4.00**cm**× 7.00**cm**= 56cm3 Second, using density formular of D...1 Answers · Science & Mathematics · 30/09/2013

5.00 mL = 5.00

**cm**^3 X (1 m/100**cm**)^3 = 5.00X10^-6 m^3 Volume = ...1 Answers · Science & Mathematics · 09/11/2016