Answer:
Δ
= -461198.3 J
Explanation:
Gibbs free energy is defined as the energy associated with a given chemical reaction which can be used to do work. Firstly, we need to figure out the chemical equation for the given problem. For the given problem, the chemical equation is:
⇒

⇒

The addition of the two
gives the
of the equation, i.e. -1.18-1.21 = -2.39 V.
Then, using the equation for Δ
, we have:
Δ
= n*F*
= 2*96485*-2.39 = -461198.3 J
Density and mass increases
Hey there!
The answer is C. Tectonic plates, with the most famous of earthquakes being a plate called the "Ring of Fire"
Hopes this Helps u :D
Answer:
81.26% is the percent yield
Explanation:
Based on the reaction:
CaCl₂ + Na₂CO₃ → 2NaCl + CaCO₃
<em>Where 1 mole of CaCl₂ in excess of sodium carbonate produces 1 mole of calcium carbonate.</em>
<em />
To solve this question we must find the moles of CaCl2 added = Moles CaCO₃ produced (Theoretical yield). The percent yield is:
Actual yield (0.366g) / Theoretical yield * 100
<em>Moles CaCl₂ = Moles CaCO₃:</em>
0.0500L * (0.0900moles / L) = 0.00450 moles of CaCO₃
<em>Theoretical mass -Molar mass CaCO₃ = 100.09g/mol-:</em>
0.00450 moles of CaCO₃ * (100.09g / mol) = 0.450g of CaCO₃
Percent yield = 0.366g / 0.450g * 100
81.26% is the percent yield
Hope u do well :) ik this maybe hard but you’ll get through it , the answer is D !