Answer:
n = 0.19 mol
Explanation:
Given mass = 15 g
The molar mass of AsH₃ = 77.94 g/mol
We need to find the number of moles in 15 g of AsH₃. We know that,
No. of moles = given mass/molar mass
So, there are 0.19 g/mol. Hence, the correct option is equal to 0.19 mol.
Answer: :)
Ore is commonly found and formed in rocks under the ocean floor and beneath the ground.
Explanation:
:/
PV = nRT
P is pressure, V is volume, n is number of moles, R is the gas constant, T is temperature in K
(2.85 atm)(12.5 L) = (n)(.08206)(27 C + 273)
n = 1.45 moles x 35.45 grams / mol Cl2 = 51.3 grams
Iron. Well actually steel, but iron is the closest.
1.5 = 1500g/Volume
Rearrange the equation:
Volume = 1500/1.5 = 1000
So your answer is 3. 1000 cm3