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
V125BC [204]
4 years ago
10

A student sets up the following equation to convert a measurement.

Chemistry
1 answer:
Nikolay [14]4 years ago
8 0

Answer:

9 . this was not able the first one. it has to go on, I will not sure about

You might be interested in
A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and titrated with a 0.050 M soluti
Katarina [22]

Im honestly not really sure ..

i just need points

im sorry

6 0
4 years ago
Air is a mixture of gases that is about 78.0% n2 by volume. when air is at standard pressure and 25.0 ∘c, the n2 component will
ArbitrLikvidat [17]

Step first:

Since, 78.0 percent  N_{2} by volume is present in the air which implies there are 78 moles of N_{2} present in 100 moles of air.

Now,

Mole fraction of N_{2} = \frac{Moles of N_{2}}{Total moles of gases in the mixture}

Mole fraction  =\frac{78}{100} mol

= 0.78

Partial pressure is equal to the multiplication of total pressure and mole fraction.

Partial pressure = 0.78\times 1 atm (as 1 atm is atmospheric pressure)

= 0.78 atm.

Step second:

Henry's law constant is calculated by:

S_{g}=k\times P_{g}

where,

S_{g} is solubility of gas

P_{g} is partial pressure of gas

k is henry's law constant

Substitute the value of solubility and partial pressure to find the value of Henry's law constant in above formula:

4.88\times 10^{-4} M=k\times 0.78 atm

k = \frac{4.88\times 10^{-4}M}{0.78 atm}

= 6.25\times 10^{-4} M atm^{-1}

Thus, Henry's Law constant is 6.25\times 10^{-4} mol L^{-1} atm^{-1}.




5 0
3 years ago
Read 2 more answers
Which of the following is a characteristic of nonmetals?
stellarik [79]

Answer: Option (a) is the correct answer.

Explanation:

Non-metals are the species which in order to complete their octet readily gain an electron.

For example, fluorine is a non-metal with atomic number 9 and its electronic distribution is 2, 7.

Hence, to attain stability it readily accepts an electron from a donor atom.

Some characteristics of non-metals are as follows.

Non-metals do not conduct electricity.

Non-metals are brittle in nature and they have a rough surface.

Non-metals are not malleable or ductile.

Thus, we can conclude that non-metals do not conduct electricity is a characteristic of non-metals.

4 0
3 years ago
Match each feature created by erosion to the correct description
Annette [7]

Answer:

Check the explanation below

Explanation:

Stream - a series of connected channels that fills with water

Tributary - one of many channels that connect to form a river

Gully - a channel of connected grooves created by runoff

Rill - a small groove in soil created by runoff

5 0
4 years ago
Each of the following models represents particles present before and after a
lana [24]

Answer:

D

Explanation:

According to the law of conservation of mass, matter can neither be created nor destroyed. The implication of this is that the total mass of reactants should be equal to the total mass of products.

There should be equal masses of reactants and products on both sides of the reaction equation. This most important condition is only satisfied by option D.

5 0
3 years ago
Other questions:
  • What is the measure of force per unit area.
    15·1 answer
  • What is the volume of a 4.0 M solution of KCl that contains 8.0 moles of solute?
    12·1 answer
  • An 8.5 mL sample of gasoline has a mass of .75 g. What is the density of the gasoline?
    6·2 answers
  • Hydrogen bonds can form between hydrogen and which three other elements?
    15·1 answer
  • ¿cual es el volumen de un vaso con agua?
    9·2 answers
  • After 41.0 min, 41.0% of a compound has decomposed. what is the half-life of this reaction assuming first-order kinetics?
    6·1 answer
  • Based on context clues what is the meaning of tête-à-tête
    15·2 answers
  • Choose one scientist who made a note-worthy contribution to our current understanding of cells and explain what the contribution
    15·1 answer
  • How many moles of methane are produced when 4.53 mol co2 reacts
    10·2 answers
  • The function of the respiratory system is to ________. create oxygen and break down carbon dioxide supply the body with oxygen a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!