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
ruslelena [56]
3 years ago
14

1) Compared to other main group hydrides, such as CH4, NH3, H2S and HF, water is unique because it is a liquid at room temperatu

re. The most likely explanation for this is that:
a)Water is more plentiful than any of these other compounds.

b)Water contains oxygen and since oxygen has a high boiling point, so should water.

c)Water's structure allows for the formation of multiple hydrogen bonds with other molecules, including itself.

d)Water is able to dissolve nonpolar gases like oxygen and carbon dioxide.


2)Calculate the freezing point of a 2.6-molal aqueous sucrose solution. The freezing point depression constant for water is 1.86 degrees C/molal.


a)4.8 °C

b)1.4 °C

c)-1.4 °C

d)-4.8 °C


3)A solution containing one mole of glucose (C6H12O6) and a separate solution containing one mole of sucrose (C12H22O11), are each dissolved in one kilogram of water. Both solutions exhibit the same colligative properties. How is this possible?


a)Each solution has the same number of relative particles of solute per kilogram of solvent.

b)Each solute has a comparable molecular mass.

c)Each solute has the same relative molecular structure.

d)Each solute has the same solubility in water.
Chemistry
2 answers:
ddd [48]3 years ago
8 0
1. d. Water is able to dissolve non-polar gases like oxygen and carbon dioxide.

2. d. -4.8 degree Celsius

3. a. Each solution has the same number of relative particles of solute per kilogram of solvent. 
Natali [406]3 years ago
7 0

Answer:

1) Water's structure allows for the formation of multiple hydrogen bonds with other molecules, including itself.

2) -4.8 °C

3) Each solution has the same number of relative particles of solute per kilogram of solvent.

Explanation:

1) the hydrogen attached to oxygen (a highly electronegative oxygen atom) thus is able to form hydrogen bond with other highly electronegative elements  F,O and N. Due to this water has high boiling point as compared to other hydrides mentioned.

2) the freezing point depression is related to molality as:

Depression in freezing point = Kf X molality

depression in freezing point = 1.86 X 2.6 = 4.836

So the freezing point of aqueous solution = -4.836 °C

3) The colligative property depends upon the number of non volatile solute particles and not on nature of molar mass.

Thus both solution exhibit same collgative properties as we have taken one mole of each.

You might be interested in
At a cost of $1600/oz, how much would you have to pay for a solid cubic foot of gold?
Alex777 [14]
<h3>You will pay $ 30876800</h3>

We'll begin by calculating the mass in ounce (oz) of a cube foot (ft³) of gold. This can be obtained as follow:

<h3 />

Density of gold = 19298 oz/ft³

Volume of gold = 1 ft³

<h3>Mass of gold =?</h3>

Density = mass /volume

19298 = mass / 1

<h3>Mass of gold = 19298 oz</h3>

Finally, we shall determine the cost of 19298 oz of gold. This can be obtained as follow:

1 oz = $ 1600

Therefore,

19298 oz = 19298 × 1600

19298 oz = $ 30876800

Therefore, a solid cube foot of gold (i.e 19298 oz) will cost $ 30876800

Learn more: brainly.com/question/15407624

4 0
3 years ago
The question is "How does the absorption and release of energy affect temperature change during a chemical reaction?" I need to
sergeinik [125]
If the heat is absorbed, then the temperature will increase as well.
3 0
3 years ago
How many bonded pairs of electrons are there in the molecule NOCl?<br> A)2<br> B)3<br> C)4<br> D)5
iren2701 [21]
There are 2 covalent bonds between the Nitrogen and Oxygen, and 1 between the Nitrogen and Chlorine. 

It should be 3.
3 0
3 years ago
Escribir la ecuación que representa el “cortado del jabón”.
fiasKO [112]

Answer:

Explanation:

cut from soap

8 0
3 years ago
A solution contains 32.7 g H3PO4 in 455 mL of solution. Calculate its molarity
Aleks [24]
Morality= wt\m.wt*1000\v(ml)

So the m.wt of h3po4 is 98.00g\ml
Molarity = 32.7g\98.00*1000\455ml
=0.7176
4 0
3 years ago
Other questions:
  • What is the full electric configuration for cadmium?
    7·1 answer
  • To test the effectiveness of a gunpowder mixture, 1 gram was exploded under controlled STP conditions, and the reaction chamber
    7·2 answers
  • Definition: This is an important principle of the scientific method in which an experiment can accurately be reproduced by an in
    11·1 answer
  • What is the density of a substance with a mass of 1.8 kg and a volume of 0.2 L?
    10·1 answer
  • Arrange the events for the hydrolysis of amide bonds by chymotrypsin in their correct order 1) attack by Ser 195 to give a tetra
    15·1 answer
  • What are the Oxidation numbers for H2AsO4-
    12·2 answers
  • Which of the following describes a study that is “longitudinal”?
    6·1 answer
  • Using your periodic table, determine the electron configuration of Barium ion, Ba+2
    12·1 answer
  • Which is the electron configuration for bromine?
    10·1 answer
  • Compared to orange light, violet light
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!