Answer:
27.03 %
Explanation:
The formula for the calculation of moles is shown below:
Given: For calcium
Given mass = 10.0 g
Molar mass of calcium = 40.078 g/mol
<u>Moles of calcium = 10.0 g / 40.078 g/mol = 0.2495 moles</u>
According to the given reaction:
1 mole of calcium on reaction forms 1 mole of calcium hydroxide
Thus,
0.2495 moles of calcium on reaction forms 0.2495 mole of calcium hydroxide
<u>Moles of calcium hydroxide = 0.2495 moles</u>
Molar mass of calcium hydroxide = 74.093 g/mol
Thus, Mass = Moles * Molar mass = 0.2495 moles * 74.093 g/mol = 18.5 g
<u>Theoretical yield = 18.5 g</u>
<u>
Given experimental yield = 5.00 g
</u>
<u>% yield = (Experimental yield / Theoretical yield) × 100 = (5.00/18.5) × 100 = 27.03 %
</u>
Answer:
See Explanation and Attachments => New concentration A = 0.10 mol/L
Explanation:
Explanation:
A + B ⇄ C + D
C(i): 0.20 mol 0.20 mol 0.4 mol 0.4 mol
ΔC: -0.10 mol -0.1 mol +0.1 mol +0.1 mol
C(eq): 0.10 mol 0.10 mol 0.5 mol 0.5 mol
__________________
=> A & B react to form more C & D as reaction shifts right to establish new equilibrium with new concentration values. See attached diagram. => I call this the 'chemical see-saw analysis'.
=> Also attached is a summary of stress factor effects of temperature and pressure-volume changes.
Combustion. As they are heated at extreme temperatures to form ammonia through Haber process
The right answer for the question that is being asked and shown above is that: "A. 940.8 N." Helen is standing in the hallway with her friend Janet, next to Helen's locker. Each girl has a body mass of 48 kilograms (kg), and thus each exerts a <span>force of 470.4 Newtons (N) on the hall floor.</span>
Answer:
because the water brings a cool breeze when the wind blows
Explanation:
