The answer would be Chope it helps
We will use ideal gas equation in this problem
PV = nRT
Where
P = pressure of gas or air = ?
V = volume of air = volume of pressure cooker = 5.68 L
T = temperature = 394 K
n = moles of air = 0.355
R = ideal gas equation = 0.0821 L atm / mol K
Putting values
Pressure = nRT / V = 0.355 X 0.0821 X 394 / 5.68 = 2.02 atm.
Answer:
this is very easy to solve
- (NH4)2 Co3,(NH4)2 So4,( NH4)3 Po4
- k2 co3, k2 so4,k3 Po4
- zn oh2, zn (No3)2, zn3 (Po4)
- ca oh2
- fe oh3, fe(No3)3, fe2 (co3)3, fe2 (so4)3
this is a answer I am very sure
Magnesium in hydrochloric acid forms H2 (hydrogen) gas according to the balanced chemical equation:
Mg + 2HCl→H2 + MgCl2
We have to calculate the volume of these objects.
Density=mass/ volume ⇒volume=mass/ Density.
1)Object a
Data:
mass=500 g
density=5 g/cm³
Volume=500 g/ (5g/cm³)=100 cm³
2)volume of object b
Data:
mass=650 g
density=6.5 g/cm³
Volume=650 g /(6.5 g/cm³)=100 cm³
Therefore, the volume of these objects is the same.
Answer: both objects would displace the same amount of liquid, because the volume would be the same.