Answer:
C - can be solids, liquids, or gases
Explanation:
Answer:
91.5 mol
Explanation:
Volume of gas = 70 L
Temperature = 25°C
Pressure = 32 atm
Moles of gas = ?
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
Now we will convert the temperature.
25+273.15 = 298.15 K
By putting values,
32 atm × 70 L = n ×0.0821 atm.L /mol.K × 298.15 K
2240 atm.L = n ×24.48 atm.L /mol
n = 2240 atm.L / 24.48 atm.L /mol
n = 91.5 mol
Answer:
<u>White vinegar</u> removes rust.
<u>Hydrogen peroxide</u> removes bloodstains.
<u>Hairspray</u> removes inkstains.
Explanation:
You can use a number of household items to remove these types of stains, but I have listed the ones I have used personally to greatest success. With bloodstains, water usually works if you can get there fast enough before it dries. Milk apparently also works for inkstains, but I've never tried!
Explanation:
v = 4/3 πr³
= 4/3 ×22/7×17.282×17.282×17.282
= 21629.445199027mm³
hope this helps you.