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
mylen [45]
3 years ago
13

Considering factors that affect that solubility which statement below true?

Chemistry
1 answer:
vovikov84 [41]3 years ago
3 0

Answer:

Part A. The solubility of gases in water increases with increasing temperature.

Part B. Hexane (C₆H₁₄)

Explanation:

Part A

<em>Considering factors that affect that solubility which statement below true? </em>

  • <em>With a few exceptions, the solubility of most solid solutes in water decreases as the solution temperature increases.</em>  FALSE. With a few exceptions, the solubility of most solid solutes in water increases as the solution temperature increases.
  • <em>The solubility of gases in water increases with increasing temperature. </em> FALSE. In general, the solubility of gases decreases with increasing temperature.
  • <em>The solubility of a gas in any solvent is increased as the partial pressure of the gas above the solvent Increases. </em> TRUE. According to Henry's law, the solubility of a gas in a liquid is proportional to its partial pressure.
  • <em>Substances with similar intermolecular attractive forces tend to be insoluble in one another.</em> FALSE. Substances with similar intermolecular attractive forces tend to be soluble in one another.

Part B

<em> Which of these is the best solvent for nonpolar solutes? </em>

<em>acetone (CH₃COCH₃) </em>

<em>ethanol (CH₃CH₂OH) </em>

<em>hexane (C₆H₁₄) </em>

<em>water</em>

There is a general rule that states "like dissolves like", meaning polar is soluble in polar and nonpolar is soluble in nonpolar. Thus, hexane, which is the least polar solvent, would be the best choice for nonpolar solutes.

You might be interested in
What is the phase change in which a solid turns into a liquid
STatiana [176]

Answer:

melting

Explanation:

5 0
3 years ago
Changing a solid to a liquid to a gas is changing the<br> matter.<br> *<br> Your answer
sukhopar [10]

Answer:

i could help you can you explain more plzzzzzz i really need points

Explanation:

6 0
3 years ago
Read 2 more answers
Does anyone know how to do this?
Sloan [31]

Answer

find out the number of moles and use the molar ratio (numbers in front of formulas (in this case they are all 1) to determine how many moles of each product you are going to get theoretically

n=m/M is the equation to use to get moles here

30.8 gm/32.04 g/mol=0.9612 moles of the methanol and also of the formaldehyde so

0.9612 moles of the formaldehyde x molar mass (M) 30.73 g/mol= 29.54 gm which is the theoretical yield you already have the actual yield of 24.7 gm

then divide the actual by the theoretical to get the % yield which is 83.6%

Explanation:

4 0
3 years ago
Can anybody define hypothesis in their own words? (its for school)
Trava [24]

Answer:

An educated guess based on what you already know.

Explanation:

6 0
3 years ago
Read 2 more answers
What is the mean free path for the molecules in an ideal gas when the pressure is 100 kPa and the temperature is 300 K given tha
sladkih [1.3K]

Answer:

The mean free path = 2.16*10^-6 m

Explanation:

<u>Given:</u>

Pressure of gas P = 100 kPa

Temperature T = 300 K

collision cross section, σ = 2.0*10^-20 m2

Boltzmann constant, k = 1.38*10^-23 J/K

<u>To determine:</u>

The mean free path, λ

<u>Calculation:</u>

The mean free path is related to the collision cross section by the following equation:

\lambda =\frac{1}{n\sigma }------(1)

where n = number density

n = \frac{P}{kT}-----(2)

Substituting for P, k and T in equation (2) gives:

n = \frac{100,000 Pa}{1.38*10^{-23} J/K*300K} =2.42*10^{25}\  m^{3}

Next, substituting for n and σ in equation (1) gives:

\lambda =\frac{1}{2.42*10^{25}m^{-3}* .0*10^{-20}m^{2}}=2.1*10^{-6}m

6 0
3 years ago
Other questions:
  • When a substance changes from one phase to another, which of the following occurs?
    9·1 answer
  • A molecule of carbon dioxide (co2) is formed when one atom of carbon (atomic number 6) is covalently bonded with two atoms of ox
    7·1 answer
  • Pls help!!!!!
    13·2 answers
  • Og is the noble gas after Rn. To go from [Rn] to [Og], you must fill four subshells (s, p, d, and f) with a total of 32 electron
    10·1 answer
  • Explain the periodic trend for ionization energy and why this occurs?
    14·1 answer
  • Consider the reaction 4FeS2 + 11O2 → 2Fe2O3 + 8SO2. If 8 moles of FeS2 react with 15 moles of O2, what is the limiting reactant?
    8·1 answer
  • 34. What is the frequency of a light whose wavelength is 660 nm? ​
    5·1 answer
  • Step 3: Measure the speed of the Toy Car on the Lower Track
    7·1 answer
  • What is Newton's second law of motion ​
    7·2 answers
  • A chemical ____ is a process in which some substances change chemically into different substances
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!