Answer:
The answer to your question is 100.8 g
Explanation:
Data
mass of Barium chloride = 90 g
mass of Barium sulfate = ?
Balanced chemical reaction
BaCl₂ + H₂SO₄ ⇒ BaSO₄ + 2HCl
Process
1.- Calculate the molar mass of BaCl₂ and BaSO₄
BaCl₂ = 137.3 + (2 x 35.5) = 208.3g
BaSO₄ = 137.3 + 32 + (16 x 4) = 233.3g
2.- Use proportions to find the mass of BaSO₄
208.3 g of BaCl₂ --------------------- 233.3 g of BaSO₄
90 g of BaCl₂ --------------------- x
x = (90 x 233.3) / 208.3
x = 20997/ 208.3
x = 100.8 g
3.- Conclusion
There will be produced 100.8 g of BaSO₄
Decomposition of sodium bicarbonate produces pure carbon dioxide and decomposition of hydrogen peroxide produces pure oxygen.
The amount of carbon dioxide in exhaled air is greater than that in regular air. Thus, the order is:
gas from decomposition of NaHCO₃ → Exhaled air → Air → gas from the decomposition of H₂O₂
Answer:
Explanation:
Atomic mass of Nickel = 58.69 g/mol
Mass of 1 mole of nickel atom = 58.69 gm
Now, mass of 1 nickel atom = Gram atomic mass/Avogadro number
=
Now, price of Rhodium =$1500 per troy ounce
Price of nickel in market = 0.577$/oz
No. of rhodium atoms needed to buy 1 nickel atom is
