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1. ### Chemistry question(density)?

volume of 0.015 Liters = 15 ml. Density = 19g / 15 ml = 1.27 g/ml

1 Answers · Science & Mathematics · 14/06/2012

Molar mass of CO2 = 44g Molar mass of O3 = 48g A is false Molar mass of NH3 = 17g Molar mass of CO = 28g B is false Molar mass of Ne = 20g C is correct as you said.

1 Answers · Science & Mathematics · 15/04/2011

3. ### what is the weight of the air within a room having dim.of 10ft long x 12 ft wide with 10ft 6in ceilings?

...0.0807 lbs. So roughly 13 cu ft of air at STP will weigh 1 pound. If we take your ...www.physlink.com/education/askexperts/ae650.cfm http:// chemistry .about.com/od/chemistryglossary/a/stpdefinition.htm

5 Answers · Science & Mathematics · 06/11/2010

From the reaction equation 100 mL of NO require 1/2 x 100 mL of O2 to react completely to NO2. Before the reaction: 100 mL of NO + 0 mL of NO2 + 400 mL of NO After the reaction 0 mL of NO...

1 Answers · Science & Mathematics · 22/08/2011

5. ### why temperature standard in physics is 39.2 F and in engineering is 60F?

... most common standard is 20 °C (293.15 K, 68 °F) STP (Standard Pressure and Temperature), from wikipedia: In chemistry , standard condition for temperature and pressure (informally abbreviated as STP ...

1 Answers · Science & Mathematics · 02/01/2011

6. ### How do I solve for the amount of air required for combustion of ethane?

http://www.tutorvista.com/content/ chemistry / chemistry -iii/thermodynamics/enthalpy-change.php also if you review this formula...you can convert to molecular mass and then do the gas law math at STP ....From the E... From the E...

2 Answers · Science & Mathematics · 22/10/2011

7. ### THERMODYNAMICS: Calculating maximum heat required...?

... 599.5788207K I dont really know if that help. My chemistry has become crap cause i havent done it in a while . Maybe i...

1 Answers · Science & Mathematics · 13/07/2009

8. ### Whats the specific volume of air, for temperatures between...?

...) / (R * T) here the units used by nist for stp are d = 1.293g/L P = 101.325kPa M = 28.972g...

6 Answers · Science & Mathematics · 24/09/2010