<span>2 Al+6 HBr = 2 AlBr</span>₃ <span>+ 3 H</span>₂
2 moles Al --------- 6 moles HBr ----------- 3 moles H₂
3.22 moles Al ------ 4.96 moles HBr ----- ( moles H₂ )
moles H₂ = 4.96 x 3 / 6
moles H₂ = 14.88 / 6
= 2.48 moles of H₂
hope this helps!
100.3kcal of heat will be absorbed.
2moles of NO absorb 43kcal.
I mole of NO weighs 14 +16 = 30g so 2 moles weigh 60g.
So 60g absorb 43kcal
So 1g absorb 43/60 kcal
So 136g absorb (43/60) x 136 = 97.47 kcal
Answer:
<h2>It makes the current viable enough to pass through an exterior wire.</h2>
Explanation:
Electrochemical cells primarily comprise of two half-cells. These half-cells assist in isolating the oxidation and reduction half-reactions. These two reactions are linked by a wire which allows the current to move from one edge to the other. The oxidation at the anode and the reduction take place at the cathode and the addition of a salt bridge helps in completing the circuit and permits the current to flow and leads to the generation of electricity.
Answer:
10.
Explanation:
Hello,
In this case, for the given reaction:
By knowing the law of conservation of mass must be respected, the following coefficients do balance the chemical equation:
So the sum of all the coefficients is 10.
Regards.
