What is the empirical formula for a compound if a sample contains 3.72 g of P and 21.28 g of Cl

1 answer:

6 0

M(P)=3.72 g
M(P)=31 g/mol

m(Cl)=21.28 g
M(Cl)=35.5 g/mol

n(P)=m(P)/M(P)
n(P)=3.72/31=0.12 mol

n(Cl)=m(Cl)/M(Cl)
n(Cl)=21.28/35.5=0.60 mol

P : Cl = 0.12 : 0.60 = 1 : 5

PCl₅ - is the empirical formula

You might be interested in

The unknown ionic compound gave a red flame test, NR with ammonium carbonate, and a red/orange halide test. What is the unknown

harkovskaia [24]

Answer:

This question is incomplete, however, the unknown compound can be inferred to be "Lithium Bromide"

Explanation:

The unknown compound firstly is said to be an ionic compound. An ionic/electrovalent compound is a compound in which it's constituent ions transfer/receive electron(s). They are mostly made of group 1 and group 7 elements. Examples include NaCl, NaF, LiF and KCl.

Also, the ion (metallic ion) that produces a red flame test colour in a flame test is the Lithium ion (Li⁺). Also, when dissolved in water or hexane, the only halogen that produces a red/orange colour is bromine. Hence, the unknown ionic compound can be inferred to be Lithium Bromide.

5 0

3 years ago

What is a community of organisms interacting with their envoirment?

katen-ka-za [31]

Hope this helps you: Ecology is the study of how organisms interact with their environment, including both abiotic (non-living) and biotic (living) aspects of the environment. It is a very broad definition and the science of ecology tends to overlap other biological sciences.

4 0

4 years ago

Read 2 more answers

Please need help thank you.

siniylev [52]

Answer:

ultra sound is A telescope is B x-ray is C and Micro is D

Explanation:

dfsdfsdfsd

5 0

3 years ago

I am confused, can somebody help me?