Chemistry, 21.01.2020 05:31 fangkronos

Suppose you have a 100-gram sample of each of the following compounds. which sample contains the largest number of moles of compound? chromium(iii) chlorideammoniamagnesium chloridephosphoric acidpotassium chloridenitrogen chlorate

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Answer from: kiarabermudez754

Explanation:

In order to calculate the number of moles of a compound, we will find it out as follows.

No. of moles of chromium(III) chloride = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{158.36}$

= 0.63 moles

No. of moles of $NH_{3}$ = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{17}$

= 5.88 moles

No. of moles of $MgCl_{2}$ = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{95}$

= 1.05 moles

No. of moles of $H_{3}PO_{4}$ = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{98}$

= 1.02 moles

No. of moles of KCl = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{74.5}$

= 1.34 moles

No. of moles of $N_{2}O_{3}$ = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{76}$

= 1.31 moles

No. of moles of $CH_{4}$ = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{16}$

= 6.25 moles

No. of moles of $C_{3}H_{8}$ = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{44}$

= 2.27 moles

No. of moles of $LiClO_{3}$ = $\frac{mass}{\text{molar mass}}$

= $\frac{100}{90.39}$

= 1.11 moles

Therefore, we can conclude that out of the given options $CH_{4}$ contains the largest number of moles of compound.

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

indium, and thallium have three electrons i think

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Suppose you have a 100-gram sample of each of the following compounds. which sample contains the lar...

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