MH₂CO₃: (1g×2) + 12g + (16g×3) = 62 g/mol
1 mol --- 62g
0,8 mol -- X
X = 0,8×62
X = 49,6g
<span>When a pan containing liquid and solid water (ice water) is put over the flame of a stove and stirred vigorously:</span> <span>2. the temperature rises but only after the ice melts.
It is known that ice lower the temperature of solution, after ice is melt temperature of liquid start to rise normally. Temperature of ice is 0</span>°C.
Answer:
The final pressure of the gas mixture after the addition of the Ar gas is P₂= 2.25 atm
Explanation:
Using the ideal gas law
PV=nRT
if the Volume V = constant (rigid container) and assuming that the Ar added is at the same temperature as the gases that were in the container before the addition, the only way to increase P is by the number of moles n . Therefore
Inicial state ) P₁V=n₁RT
Final state ) P₂V=n₂RT
dividing both equations
P₂/P₁ = n₂/n₁ → P₂= P₁ * n₂/n₁
now we have to determine P₁ and n₂ /n₁.
For P₁ , we use the Dalton`s law , where p ar1 is the partial pressure of the argon initially and x ar1 is the initial molar fraction of argon (=0.5 since is equimolar mixture of 2 components)
p ar₁ = P₁ * x ar₁ → P₁ = p ar₁ / x ar₁ = 0.75 atm / 0.5 = 1.5 atm
n₁ = n ar₁ + n N₁ = n ar₁ + n ar₁ = 2 n ar₁
n₂ = n ar₂ + n N₂ = 2 n ar₁ + n ar₁ = 3 n ar₁
n₂ /n₁ = 3/2
therefore
P₂= P₁ * n₂/n₁ = 1.5 atm * 3/2 = 2.25 atm
P₂= 2.25 atm
Answer:
The total amount of Au is $ 
Explanation:
Given that,
Mass of 1.0 ml of Au 
Total volume of water in oceans 
We need to calculate the volume in ml
Using given volume
We need to calculate the total mass of Au
Using given data
So, The total mass of Au is 
The mass will be in ounce,
The total amount of the Au Will be
Hence, The total amount of Au is $
Number 1 Bc of wood a magnetic
