Answer:
ok ............bu am not so sure
Answer:
The answer to your question is: Volume = 0.117 l
Explanation:
Data
V = ?
M = 9 x 10 ⁻²
mass = 1,9 g of KH₂AsO₄
MW KH₂AsO₄ = 39 + 2 + 75 + 64 = 180 g
Process
180 g of KH₂AsO₄ ------------------ 1 mol
1.9 g ------------------ x
x = 0.0011 mol of KH₂AsO₄
Molarity = # of moles / volume
Volume = # of moles / molarity
Volume = 0.0011 mol of KH₂AsO₄ / 0.09
Volume = 0.117 l = 117 ml
Conduction is the transfer of thermal energy with no transfer of manner. It occurs when two materials touch; Conduction in gas is slower than in liquids and solids because the particles in a gas collide less often.
Hello there,
<span>Al has an oxidation number of 3 and Cl has 1. So, the most likely formula unit of the compound is AlCl3.
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Glad to help.
~hottwizzlers
Answer:
506kg
Explanation:
From the reaction equation, we can see that 3 moles of hydrogen yielded 2 moles of ammonia.
Now we need to calculate the number of moles of hydrogen reacted. This mathematically equals the mass of hydrogen reacted divided by the molecular mass of the hydrogen molecule.
The mass of hydrogen reacted is 89.5kg. This equals 89.5 × 1000g which equals 89500g. The molecular mass of hydrogen is 2g/mole ( 1 atom of hydrogen has an atomic mass unit of 1 and 1 molecule of hydrogen has 2 atoms).
Now we mathematically calculate the number of moles of hydrogen reacted to be 89500/2 which equals 44,750 moles.
If 3 moles of hydrogen yielded 2 moles of ammonia gas, then 44, 750 moles will yield 44,750 × (2/3) which equals 29,833 moles of Ammonia gas.
Now, let's calculate the mass of Ammonia gas yielded. This mathematically equals the number of moles of ammonia gas yielded multiplied by the molar mass of ammonia gas. The molar mass of ammonia gas is (14 + 3(1)) which equals 17g/mole.
Hence, the mass yielded equals 29,833 × 17 = 506167g
This equals 506,167 ÷ 1000 = 506.167kg.