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Chemistry
Organic Chemistry
Physical Properties of Organic Compounds
How is ethanol after 1 minutes of evaporation
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evaluate the physical, social and economic consequences of this crime to the offender. How did this corruption and fraud impact negatively in the country: for example service delivery, tax, expense of trial, etc.
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What is the effect of the type of alcohol (methanol, ethanol and pentanol) on the evaporation time?
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To understand the effect of different types of alcohol (methanol, ethanol, and pentanol) on
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I have a bottle of 95% ethanol purchased from the manufacturer.
Normally, when it is not stated, does it mean 95% w/w ethanol? I
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when not stated, 95% is v/v you want to dilute the ethanol 95/45 times, or 2.111 times. THat means
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Ethanol has an enthalpy of evaporation of 38.6kJ/mol, and a normal boiling point of 78.4oC. What is the vapor pressure of
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equation: ln(P2/P1)=(delta H/R)((1/T1)-(1/T1) 1st:T1=78.4+273=354.4K T2= 15+273=286K R=8.3154J/mol
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Given that 6.20 x 10^23 ethanol molecules have a mass of 46.04g calculate the number of ethanol molecules in a film of ethanol
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To find the number of ethanol molecules in the given film of ethanol, we can follow these steps:
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What is the mass/vol % ethanol in an ethanol-water solution with density of 0.875 g/ml and containing 65.0% ethanol by volume?
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To find the mass/volume percentage (mass/vol %) of ethanol in the solution, we need to understand
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What come after evaporation?
What come before evaporation? What come between evaporation? Can yon write all the water cycle?
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1. Condensation 2. Precipitation 3. Evaporation happens when a liquid substance becomes a gas. When
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When doing a simple distillation of ethanol-water, is the vapor pure ethanol or does it also contain water? (knowing that
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Water/ethanol form an azeotrope which is a combination (in this case) of 95.63% ethanol/4.37% H2O
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A solution of ethanol (C2H5OH) is prepared by dissolving 35.0 ml of ethanol in enough water to make 120.0 ml of solution. What
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Sorry I meant .79= density
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Specific heat capacity of solid ethanol is 2.419 J/g C. Melting point temperature of ethanol is -114.4 C/ 158.8 K. Enthalpy of
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at what temperature will 45g of solid dissolve
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is it true that ethanol on skin feels cold due to the evaporation of the alcohol
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Yes, it is true that ethanol on the skin can feel cold due to the evaporation of the alcohol. When
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