There are 2.46 x 10^25 molecules in a cubic meter at 1 atm and 25C. If we found 3.38 x 10^18 molecules of CO in that sample, what is the concentration in ppm?
There are 2.46 x 10^25 molecules in a cubic meter at 1 atm and 25C. If...
A cubic meter of air sample was sampled at 1.0 atm and 25 C and was found to contain 8.8 micrograms of NO2. How many ppb of NO2 is in that air?
A cubic meter of air sample was sampled at 1.0 atm and 25 C and was found to contain 2.9 micrograms of NO2. How many ppb of NO2 is in that air?
A cubic meter of air sample was sampled at 1.0 atm and 25 C and was found to contain 11.0 micrograms of SO2. How many ppb of SO2 is in that air?
A perfect gas sample contains 6.2*^22 molecules per cubic meter at 205 k. calculate the pressure of this gas and express the answer in units of pascals, bar, atm, and mmHg.
help with chemistry unit conversion
6. Convert a concentration of 6.0x1014 molecules cm to moles per liter (molarity) and ppm. scale. Assume 25 °C and 1.0 atm total air pressure.
6. Convert a concentration of 6.0x1014 molecules cm to moles per liter (molarity) and ppm. scale. Assume 25 °C and 1.0 atm total air pressure.
Caleulate the 0.45 ppm NO, concentration at 25°C and 1 atm pressure as mg/m' and ug/m 5. Estimate the stoichiometric air to fuel ratio for a 100% ethanol (CHCH2OH) fuel One mole of CH,CHOH-46g: one mole of O;-32g; one mole of N, 28g Assume the following reaction. 6 CH CH,OH+36 O; +135.36 N;12 CO + 18 H,O+135.35 N (Ans:18) Solid waste with the density of 110 kg/m is spread in a 0.5m layer at a landfill. If a steel wheel...
Air at 50% relative humidity is cooled isobarically at 1 atm absolute from 90⁰C to 25⁰C. a) Estimate the dew point and degrees of superheat of the air at 90⁰C. b) How much water condenses (mol) per cubic meter of feed gas? c) Suppose a sample of the 90⁰C air is put in a closed variable-volume chamber containing a mirror and the pressure is raised at constant temperature until a mist forms on the mirror. At what pressure (atm) would...
On a certain hot day the atmospheric pressure was 1 atm and the temperature was 37oC. On this day 1 L sample of atmospheric gases was collected and analyzed. It was found to contain among other gases 9.38 x 10-3 mol of O2 gas, 2.46 x 10-8 mol of H2 gas and 1.79 x 10-4 mol of water vapor. If you put these amounts of the three gases in a sealed 1L tank at 1 atm and 37oC, will the...
Water is heated in a 1/2 cubic meter container, until it reaches the temperature of 350K, the mass of water is 18 kg, at what pressure does the system reach? Use the correct equation of state.
The following question (10,11) refere to the following reaction
at constant 25C and 1 atm.
- 6 Q © 2.17 A mh o © 135% T worumu - nu The following questions (10 & 11) refer to the following reaction at constant 25°C and 1 atm. AH =-791 kJ/mol 27 2Fe(s) + (3/2)02(g) + 3H2O(1) ► 2Fe(OH)3(s) Substance Sº (J/mol K) Fe(OH),(s) 107 Fe(s) 02(g) 205 H2O(1) 10. Determine ASgurr for the reaction (in kJ/mol K) A) 3.14 B) 0.937...