<h3>
Answer:</h3>
4.945 atm
<h3>
Explanation:</h3>
- Based on Dalton's law of Partial pressure, the total pressure of a mixture of gases is equivalent to the sum of individual partial pressures of the gases in the mixture.
In this case;
Partial pressure of Oxygen, P(O) = 0.255 atm
Partial pressure of N, P(N) = 3.24 atm
Partial pressure of Ar, P(Ar) = 1.45 atm
Therefore;
P(total) = P(O) + P(N) + P(Ar)
= 0.255 atm + 3.24 atm + 1.45 atm
= 4.945 atm
Therefore, the total pressure of the mixture is 4.945 atm
Answer:
Explanation:
<u>1) Data:</u>
a) n = ?
b) V = 50.0 dm³ = 50.0 liter
c) p = 100.0 kPa
d) T = 50 °C
<u>2) Physical law:</u>
<u>3) Constants:</u>
- R = 0.08206 atm-liter / K-mol
<u>4) Unit conversions:</u>
- T = 50 + 273.15 K = 323.15 K
- P = 100.0 kPa × (1 amt /101,325 kPa) = 0.9869 atm
<u>5) Solution:</u>
- n = 0.9869 atm × 50.0 liter / (0.08206 atm-liter /K-mol × 323.15 K)
Answer:
It is a reactant that produces smaller amount of product.
Explanation:
" The limiting reactant is a reactant that control the amount of product in chemical reaction because of its smaller amount"
Consider the example:
2 H₂ + O₂ → 2H₂O
two moles of hydrogen react with one moles of oxygen and produces two moles of water. when we take two mole of hydrogen and two mole of oxygen than again two mole of water is produced because hydrogen is limiting reactant and one mole of oxygen left un reacted.
Identification of limiting reactant:
Calculate the number of moles of reactant.
compare it with number of moles of product with help of balance chemical equation.
identify the reactant which produces less number of moles of product.
Answer:
C
Explanation:
Rust is a chemical change (reaction) all of the other options only change the state meaning that it is a physical reaction.
