# Yahoo Web Search

1. ### Chemistry Help?

Potassium + water ⟶ Potassium hydroxide + hydrogen 2K(aq) + 2H₂O(aq) ⟶ 2KOH(aq) + H₂(g) K is 39.1 g/mol 15.5 g / 39.1 g/mol = 0.396 mol mole ratio of H₂ to K is 1/2 therefore 0.396 mol will produce 0.396/2 = 0.198 mol of...

2 Answers · Science & Mathematics · 14/12/2020

2. ### How much H2O and CO2 will be produced by burning 20L of propane?

... = 0.892 mol 0.892 mol produces 3•0.892 mol of CO₂ and 4•0.892 mol of H₂O 5000 cubic feet = 141.6 m³ ...

1 Answers · Science & Mathematics · 03/12/2020

3. ### True or false about water?

The density of ice is 0.917 g/cm³ at 0°C and standard atmospheric pressure . Density of ice increases slightly with decreasing temperature and has a value of 0.9340 g/cm³ at −180 °C (93 K...

2 Answers · Science & Mathematics · 29/01/2020

4. ### Chemistry Question?

...in L) at 1.01 bar and 24.6 oC did...transfer? Since the temperature is constant, we can use... The unit of pressure is atmospheres.... This is standard pressure . P = 6.18 * 10...

2 Answers · Science & Mathematics · 24/05/2019

5. ### Gas Stoichiometry?

...get to figure out what P1 is... https://en.wikipedia.org/wiki/ Standard _conditions_for_ temperature _ and _ pressure is it 100 kPa? is it 101.325 kPa?

3 Answers · Science & Mathematics · 02/01/2019

6. ### Gas Stoichiometry?

... and calculate the results https://en.wikipedia.org/wiki/ Standard _conditions_for_ temperature _ and _ pressure

2 Answers · Science & Mathematics · 02/01/2019

7. ### Chemistry lab problem.?

STP ..... STP is " standard temperature and pressure ", or 1.00 atm and 0C (273.15K). One mole of any ideal gas...

1 Answers · Science & Mathematics · 12/04/2018

8. ### chemistry question involving Henry's law and solubility of gases in liquids?

Henry’s Law: At constant temperature , he amount of dissolved gas in a volume of a specified liquid id directly proportional to the partial pressure of the gas above the liquid. Pressure = Henry’s Law constant...

1 Answers · Science & Mathematics · 13/07/2017

9. ### TWO QUESTIONS FOR CHEM?

At standard temperature and pressure , the volume of one mole of a gas is 22.4 liters...gas that has a density of 2.18 g/L at 66°C and 720 mm Hg. Density = mass ÷ volume Let’s...

2 Answers · Science & Mathematics · 08/05/2017

10. ### Help with this Chemistry Question :Gas Law Problems?

...0.082 L atm / K mol ( Standard gas constant value, which we should know...15 + 273) K = 288 K ( Temperature has to be converted...

1 Answers · Science & Mathematics · 07/01/2017