gchem help!!1

[RING12]

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Uopn analysis a compound is found to contain 22.8% sodium, 21.8% boron, and 55.4% oxygen.what is its simplest formula?

1)NaBO 2) NaB2O5 c) NA2B4O7 d)Na3BO4

The answer is C. I dont get it how I should get this numbers. I got NaB2O3.

This is from ACS Book. Can some one explain this to me how the answer is C, Plz???

 

[casper22]

Uopn analysis a compound is found to contain 22.8% sodium, 21.8% boron, and 55.4% oxygen.what is its simplest formula?

1)NaBO 2) NaB2O5 c) NA2B4O7 d)Na3BO4

The answer is C. I dont get it how I should get this numbers. I got NaB2O3.

This is from ACS Book. Can some one explain this to me how the answer is C, Plz???

How did you get NaB2O3...

if you divide each % by their respective MW, you should get Na = 1, B = 2 and O = 3.5...

Since NaB2O3.5 cannot be a formula, this is converted to whole number by multiplying by 2...

 

[G.K]

Uopn analysis a compound is found to contain 22.8% sodium, 21.8% boron, and 55.4% oxygen.what is its simplest formula?

1)NaBO 2) NaB2O5 c) NA2B4O7 d)Na3BO4

The answer is C. I dont get it how I should get this numbers. I got NaB2O3.

This is from ACS Book. Can some one explain this to me how the answer is C, Plz???

watch it on

 

[rak173]

The OP is probably a dentist by now.