1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lesya692 [45]
3 years ago
5

Given that the boiling points of ethanol and diethyl ether are 78.1°C and 34.6°C, respectively, which should have the higher vap

or pressure at 20.0°C?
Chemistry
2 answers:
anyanavicka [17]3 years ago
7 0
Diethyl ether, since 20 is closer to 34.6 it should start boiling faster than the other which is no where near it
max2010maxim [7]3 years ago
6 0

Answer:- Diethyl ether would have higher vapor pressure at 20.0 degree C.

Explanations:- Boiling point is the temperature at which the vapor pressure equals to the atmospheric pressure.

Looking at the given vapor pressure values, ethanol needs to be heat up at 78.1 degree C to makes it's vapor pressure equals to atmospheric pressure where as diethyl ether only needs to be heat up at 34.6 degree C.

Hence, lower is the boiling point, higher is the vapor pressure.

Now, 20.0 degree C is more closer to 34.6 degree C . it means the temperature difference is less for diethyl ether as compared to ethanol.

So, as the boiling point of diethyl ether is low, the vapor pressure of it would be higher at 20.0 degree C.

You might be interested in
Your lab partner told you that he measured out 25.0 mL of the unknown acid solution. But he actually went above the line on the
Sav [38]

Answer:

Final calculated molarity of the unknown acid be  lower than the actual concentration.

Explanation:

Volume required unknown acid = V= 25.0 mL

Volume actually measure was more than V that is = V'

V' > V

Molarity of the solution is the moles of compound in 1 Liter solutions.

Molarity=\frac{\text{Mass of compound}}{\text{Molar mas of compound}\times Volume (L)}

As we can see from the formula that molarity is inversely proportional to the volume of the solution.

Molarity\propto \frac{1}{Volume}

  • Molarity of solution decreases with increase in volume
  • Molarity of solution Increases with decrease in volume.

We have added more volume than required which will be increase the volume of solution and the molarity of the solution will lower than the actual value.

6 0
3 years ago
Calculate the percent composition of C in carbon dioxide.
zhannawk [14.2K]

Answer:

27.27%

Explanation:

8 0
2 years ago
Read 2 more answers
When bar-headed geese fly at very high altitudes (possibly over Mount Everest!), they breathe very thin air where the partial pr
Reil [10]

Answer:hemoglobin that has a high affinity for oxygen

Explanation:

Haemoglobin is the oxygen carrying pigment in blood. It performs this function because of the presence of iron at the center of the haemoglobin which coordinates reversibly with oxygen thereby aiding delivery of oxygen to cells. At high altitudes where air is thinner and the partial pressure of oxygen is lower than sea level, haemoglobin must develop a greater affinity for oxygen in order to carry the scarce oxygen to cells.

5 0
3 years ago
How many moles are in 2.0 grams of Na?
lisov135 [29]

Answer:

46

Explanation:

Sodium metal has a molar mass of  

22.99

3 0
3 years ago
Farming is one example of a human activity that has changed the environment. Which is the NOT a reason farming has hurt the envi
Levart [38]
It increases availability of food for humans
6 0
3 years ago
Other questions:
  • Which of the following solutions will have the lowest boiling point?
    15·1 answer
  • How many joules of energy are needed to change the temperature of 75.0 g of water 250C?
    11·1 answer
  • How many single covalent bonds must a fluorine atom form to have a complete octet in its valence shell?
    15·1 answer
  • Which of the following is a mixture? honey water gold steel
    10·2 answers
  • A bird is able to easily soar when it flies over a thermal. A thermal is a current of warm air that is heated by the ground and
    12·1 answer
  • What is the correct order of processes in the accretion of planetesimals?
    12·2 answers
  • 6. A 3 liter solution contains 140 g of Sodium Bromide (NaBr). What is the molarity of the solution?
    11·1 answer
  • The soil of the rainforest is nutrient poor. How do plants that have roots in the rainforest floor obtain the nutrients they nee
    8·2 answers
  • Enter the atomic symbol for an atom with a mass number of 72 and an atomic number of 33.
    13·1 answer
  • What volume of SO2, at room temperature and pressure is produced on heating 9.7g
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!