Answer:
8.75 g of ZnO
Solution:
The Balance Chemical Reaction is as follow,
2 ZnS + 3 O₂ → 2 ZnO + 2 SO₂
Step 1: Find out the limiting reagent as;
According to Equation ,
194.94 g (2 mole) ZnS reacts with = 96 g (3 moles) of O₂
So,
12.85 g of ZnS will react with = X g of O₂
Solving for X,
X = (12.85 g × 96 g) ÷ 194.94 g
X = 6.32 g of O₂
It means for total utilization of 12.85 g of ZnS we require 6.32 g of O₂, but we are provided with 15.91 g of O₂. Therefore, ZnS is the limiting reagent and will control the yield.
Step 2: Calculate Amount of ZnO produced as;
According to Equation ,
194.94 g (2 mole) ZnS produces = 132.81 g (2 moles) of ZnO
So,
12.85 g of ZnS will produce = X g of ZnO
Solving for X,
X = (12.85 g × 132.81 g) ÷ 194.94 g
X = 8.75 g of ZnO
Answer:
Mass = 627.2 g
Explanation:
Given data:
Number of moles of barium nitrate = 2.4 mol
Mass of barium nitrate = ?
Solution:
Formula:
Mass = number of moles × molar mass
Molar mass of barium nitrate = 261.337 g/mol
Mass = 2.4 mol × 261.337 g/mol
Mass = 627.2 g
The number that will be multiplied by 588 to get one's weight in Newtons is 2.5 considering that the mass of the individual is 60kg.
<h3>How to calculate weight?</h3>
Weight is the force on an object due to the gravitational attraction between it and the Earth (or whatever astronomical object it is primarily influenced by).
The weight of an object can be calculated by multiplying the mass of the object by acceleration due to gravity of the location.
According to this question, we would consider an individual with a mass of 60kg. The acceleration due to gravity on Jupiter is 24.5 m/s².
Weight = 60kg × 24.5 m/s² = 1470N
This means that the number to be multiplied by 588 to get weight of 1470N is 2.5.
Learn more about weight at: brainly.com/question/23312072
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Answer:
0.89L ( 2 decimal place)
Explanation:
Using Combined Gas law.
(
P₁V₁)/T₁ = (P₂V₂) / T₂
P₁ = 1.00 atm
V₁ = 1.55L
T₁ = 27.0 °C = converting to kelvin ( 27 + 273k) = 300k
P₂ = same as P₁ = 1.00 atm
V₂ = ?
T₂ = -100°C = converting to kelvin ( -100 + 273k) = 173k
(1 x 1.55)/300 = (1 x V)/173
1.55/300 = V/173
V / 173 = 0.00516666666
V = 173 x 0.00516666666 = 0.89383333333 ≈ 0.89L ( 2 decimal place)
Helium would be the least I think