Chemistry, 21.06.2020 07:57 hdhtvthjr

If the theoretical value for AH of the reaction HCl + NH 3 NH 4 Cl is -51.669 kJ/mol, but from your experiment, you calculated the AH of the reaction to be -43.1 /mol, what is your percent error?

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Answer from: lamwil9432

The percentage error is 16.6 %.

Explanation:

To calculate the percentage error, we use the equation:

$\%\text{ error}=\frac{|\text{Experimental value - Accepted value}|}{\text{Accepted value}}\times 100$

We are given:

Experimental value of ΔH = -43.1 kJ/mol

Accepted value of ΔH = -51.669 kJ/mol

Putting values in above equation, we get:

$\%\text{ error}=\frac{|(-43.1)-(-51.669)|}{(51.669)}\times 100\\\\\%\text{ error}=16.6\%$

Hence, the percentage error is 16.6 %.

Answer from: Quest

1.consider the following balanced equation and answer parts a through. show calculations for each part.

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.

explanation:

Answer from: Quest

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

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If the theoretical value for AH of the reaction HCl + NH 3 NH 4 Cl is -51.669 kJ/mol, but from your...

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