# Yahoo Web Search

1. Sort by

1. ### Chemistry Significant Figures problem?

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

2. ### Chemistry Quiz question and i have no idea how to do it:( Please Urgent help. Thank you so much!?

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

3. ### 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

4. ### How to calculate Density? Helpppppp!!!?

3.291 g/cm^3 or g/mL With significant digits (if you are supposed to use it) 3 g/mL or 3g/cm^3

4 Answers · Science & Mathematics · 03/10/2011

5. ### How would you solve this V1 / T1 = V2 / T2 question?

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

6. ### How much is that aluminium atom?

(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 Al

1 Answers · Science & Mathematics · 06/05/2013

7. ### Chemistry- Units & Density?

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

8. ### This kind of question is on my test tomorrow, my friend told me..can you help design a similar question so i know how to do it?

...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

9. ### Number of Atoms in a Rectangular Bar of a Solid Element?

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

10. ### Chemistry 11?

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