Answer:
P₂ = 0.99 atm
Explanation:
Given data:
Initial pressure = 1.02 atm
Initial temperature = 11.2°C
Final pressure = ?
Final temperature = 4.00°C
Solution:
Initial temperature = 11.2°C (11.2+273 = 284.2 K)
Final temperature = 4.00°C (4.00+273 = 277 K)
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.
Mathematical relationship:
P₁/T₁ = P₂/T₂
Now we will put the values in formula:
1.02 atm / 284.2 K = P₂/277 K
P₂ = 1.02 atm × 277 K / 284.2 K
P₂ = 282.54 atm. K /293 K
P₂ = 0.99 atm
Answer:
The answer to your question is: 1.28 x 10 ¹⁵ g of Fe₂(SO₄)₃
Explanation:
Single replacement reaction:
2Fe + 3H₂SO₄ → Fe₂(SO₄)₃ + 3H₂
M Fe = 55.8 g/mol
M H₂SO₄ = 98.1 g/mol
M Fe₂(SO₄)₃ = 399.9 g/mol
M H₂ = 2.0 g/mol
Fe₂(SO₄)₃ = 3.21 x 10¹² mol
Fe₂(SO₄)₃ = ? g
1 mol of Fe₂(SO₄)₃ ----------------- 399.9 g/mol of Fe₂(SO₄)₃
3.21 x 10¹² mol Fe₂(SO₄)₃ -------- x
x = (3.21 x 10¹² x 399.9 ) / 1
x = 1.28 x 10 ¹⁵ g of Fe₂(SO₄)₃
Answer:
helium protons and electrons determine the atomic number and helium has the lowest
Molar mass of NaOH = 39.997 g/mol
39.997 g ---------- 6.02x10²³ molecules
g --------------- 2.30x10²² molecules
mass = 2.30x 10²² * 39.997 / 6.02x10²³
mass = 9x199^24 / 6.02x10²³
mass = 15.280 g
hope this helps!
Answer:
coal and oil come from the remains of dead animals.