Question
In: Chemistry
A solution contains 10.10 gg of unknown compound dissolved in 50.0 mLmL of water. (Assume a...
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A solution contains 10.10 gg of unknown compound dissolved in 50.0 mLmL of water. (Assume a density of 1.00 g/mLg/mL for water.) The freezing point of the solution is -6.05 ∘C∘C. The mass percent composition of the compound is 38.70% CC, 9.74% HH, and the rest is OO. |
Part A What is the molecular formula of the compound? Express your answer as a molecular formula.
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Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
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A solution contains 10.75g of an unknown compound dissolved in
50.0 mL of water. (Assume a density of 1.00 g/mL for water.) The
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A solution contains 12.00 g of unknown compound
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An unknown compound (152 mg) was dissolved in water to make 75.0 mL of solution. The...
An unknown compound (152 mg) was dissolved in water to make 75.0
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Determine the molecular formula of this compound by adding the
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A 1.31 gram sample of an unknown monoprotic acid is dissolved in 50.0 mL of water...
A 1.31 gram sample of an unknown monoprotic
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with a a 0.496 M aqueous sodium
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9.16 milliliters of sodium
hydroxide have been added, the pH is
7.227 and that an additional 14.6
mL of the sodium hydroxide solution is required to
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A sample of sodium carbonate unknown is dissolved in 50.0 mL of
water. After performing experiment 3, the student determines that
the second equivalence point occurs at 32.86 mL of 0.1115 M HCl.
What is the theoretical pH of the solution after 16.43 mL of HCl
has been added. Report your answer to two significant figures.
(HINT - refer to the lab procedure and posted notes for the correct
way to approach this problem)
An unknown nonelectrolyte and nonvolatile compound is dissolved in enough pure water to make 348ml of...
An unknown nonelectrolyte and nonvolatile compound is dissolved
in enough pure water to make 348ml of solution.The vapor pressure
above the solution drops from 198.7mbar to 196.7mbar. When 100g of
the compound is dissolved at constant temperature.Determine the
molar mass of the unknown compound. Assume no change in volume
occurs upon dissolution.
The answer is 509 g/mol Why?
The osmotic pressure of a solution containing 1.44 g of an unknown compound dissolved in 175.0...
The osmotic pressure of a solution containing 1.44 g of an
unknown compound dissolved in 175.0 mL of solution at 25 ∘C is 1.93
atm. The combustion of 32.88 g of the unknown compound produced
55.60 gCO2 and 22.76 gH2O. What is the molecular formula of the
compound (which contains only carbon, hydrogen, and oxygen)?
Express your answer as a chemical formula.
The osmotic pressure of a solution containing 1.02 g of an unknown compound dissolved in 175.0...
The osmotic pressure of a solution containing 1.02 g of an
unknown compound dissolved in 175.0 mL of solution at 25 ∘C is 1.93
atm. The combustion of 23.40 g of the unknown compound produced
41.70 gCO2 and 17.07 gH2O. What is the molecular formula of the
compound (which contains only carbon, hydrogen, and oxygen)?
The osmotic pressure of a solution containing 1.44 g of an unknown compound dissolved in 175.0...
The osmotic pressure of a solution containing 1.44 g of an
unknown compound dissolved in 175.0 mL of solution at 25 ∘C is 1.93
atm . The combustion of 32.88 g of the unknown compound produced
55.60 gCO2 and 22.76 gH2O . What is the molecular formula of the
compound (which contains only carbon, hydrogen, and oxygen)?
The osmotic pressure of a solution containing 2.10 g of an unknown compound dissolved in 175.0...
The osmotic pressure of a solution containing 2.10 g of an
unknown compound dissolved in 175.0 mL of solution at 25 ∘C is 1.93
atm . The combustion of 24.02 g of the unknown compound produced
28.16 g CO2 and 8.640 g H2O.
What is the molecular formula of the compound (which contains
only carbon, hydrogen, and oxygen)?
Express your answer as a chemical formula.
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