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An unknown compound of mass

An unknown organic compound is 40.00% C, 6.67% H and 53.33% O by mass. The formula weight of the unknown is 90.0g/mole. Find the
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2. asked by Chelsea
3. 1,526 views
An unknown compound contains 13.04% of hydrogen, 34.78% of oxygen, and 52.17% of carbon by mass. Determine the empirical formula
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2. asked by ezile
3. 162 views
An unknown organic compound contains carbon, hydrogen, and bromine only. The mass percentage ofC is 12.81% C. Bromine from 1.88
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2. asked by asd
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The new vapor pressure of a solution of 3.25g of an unknown compound in 22.35g of H2O is 114.9mmHg at 55 degrees Celcius. What
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2. asked by regina
3. 478 views
an aqueous solution containing 17.5g of an unknown molecular(nonelectrolyte) compound in 100.0g of water has a freezing point of
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2. asked by Monique
3. 2,277 views
An aqueous solution containing 17.1 g of an unknown molecular compound ( nonelectrolyte) in 105.0g of water was found to have a
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2. asked by John
3. 1,032 views
An unknown compound contains 13.04% of hydrogen,34.78% of oxygen, and 52.17% of carbon by mass. Determine the empirical formula
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2. asked by ezile
3. 157 views
An aqueous solution containing 32.9 g of an unknown molecular (nonelectrolyte) compound in 130.0 g of water has a freezing point
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2. asked by Alicia
3. 535 views
A 250.0 mL sample of an aqueous solution at 25 degrees Celsius contains 35.8 mg of an unknown nonelectrolyte compound. If the
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2. asked by Bru
3. 889 views
a 250.0 ml sample of an aqueous solution at 25 degrees celsius contains 35.8 mg of an unknown nonelectrolyte compound. If the
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2. asked by Vic
3. 711 views