# Yahoo Web Search

1. ### A mixture of 512.0 g of O2(g) and 15.12 g of H2(g) is placed in a balloon at standard temperature and pressure . ?

...but there is more O2 present than that, so O is in excess and H2 is the limiting reactant. After the reaction there...

1 Answers · Science & Mathematics · 22/10/2020

2. ### Physics question?

... is 2.3kPa. The pressure due to air molecules is 110 - 2.3 = 107... n∝P for a given volume and temperature .  So you don’t need to use number of...

1 Answers · Science & Mathematics · 18/10/2020

3. ### Chemistry help please ?

...the standard conditions of temperature and pressure ). The "old" standard temperature and pressure were defined as 1 atm pressure and 273.15 K. Under these...

1 Answers · Science & Mathematics · 08/08/2020

4. ### Why does my lawn mower use SAE 5w-30 and my pressure washer SAE 10w-30?

..., your lawnmower engine is used on a snowblower, and needs the 5w oil.  Your pressure washer would always be used at a warmer temperature , so the standard 10w-30 oil is used.  Find an oil temperature chart and look at...

2 Answers · Home & Garden · 11/07/2020

5. ### Calculate the specific volume of natural gas under standard temperature and pressure ?

We have STP, and we know that 1 mole of gas occupies V = 22.4 L = 0.0224 ...

1 Answers · Science & Mathematics · 28/06/2020

6. ### If an Aircraft fly at an altitude of 30000 how can I calculate air temperature in (k) air pressure and air density in (kg/m'3) according to ?

...com/question/index?qid=20191102152355AAGsPLu 30000 ft = 9100 m, 9.1 km pressure is about 30 kPa Temp is about 230 K density ...

1 Answers · Science & Mathematics · 04/11/2019

7. ### A jet is flying at a speed of 356 m/s in an air temperature of 25 C. What is the Mach number of the jet?

... γ = (gamma) ratio of specific heats = 1.4 for air at STP* * standard temperature and pressure R = gas constant = 286 m²/s²/K for air...

3 Answers · Science & Mathematics · 24/08/2019

8. ### Fe(HSO3)3 + 3 HNO2 = Fe(NO2)3 + 3 H2(SO3) How many moles of the two products are obtained with 4.48L of ferrous hydrogen sulphite (gas)?

... of hydrogen sulfite. Since ferrous hydrogen sulfite is a gas at standard temperature and pressure , the volume of one mole is 22.4 liters. To determine the ...

4 Answers · Science & Mathematics · 15/08/2019

9. ### What is the density of methane (CH4) gas at standard pressure and your typical room temperature which is 22.2 Celsius.?

...gas law .. mw = mass / n ----> n = mass / mw... . . .definition of molar mass.. mw substitute and rearrange .. PV = (mass / mw) * RT .. mass / V = mw * P/RT...

3 Answers · Science & Mathematics · 29/07/2019

10. ### The volume of a sample of ethane,C2H6, is 2.35 L at 510 torr and 33 °C.What volume will it occupy at standard temperature and pressure (STP)?

(2.35 L) x (510 torr / 760 torr) x (273 K) / (33 + 273) K = 1.41 L

2 Answers · Science & Mathematics · 25/06/2019