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
mariarad [96]
3 years ago
6

During the hot summer days, there is a lot more water in the air. This is due to which change of state?

Chemistry
1 answer:
Zarrin [17]3 years ago
5 0
With the evaporation
You might be interested in
Gravitational force acts on two objects with which attribute? A. mass B. force C. orbit D. speed
Svetlanka [38]
It is force I believe
5 0
3 years ago
Read 2 more answers
Calcium has an atomic number of 20. An atom of calcium has ____ electrons in its first energy level and ____ electrons in its se
kotykmax [81]
Hug baby bye love you love love miss love bye bye love bye girl bye love bye baby love you love love bye bye baby bye bye girl love love miss love love you bye love love miss bye bye baby bye girl baby uuuuy bye baby girl baby baby love you love bye love love bye baby bye love love bye love love miss bye love you bye bye love love bye baby bye girl love love bye bye love love miss 574366 5)?676)$76664)456
4 0
2 years ago
Calculate the concentration of formate in a 100mm solution of formic acid at ph 4.15. The pka for formic acid is 3.75
MissTica

The molarity of formic acid is 100 mM or 100\times 10^{-3}M. The dissociation reaction of formic acid is as follows:

HCOOH\leftrightharpoons HCOO^{-}+H^{+}

The expression for dissociation constant of the reaction will be:

K_{a}=\frac{[HCOO^{-}][H^{+}]}{[HCOOH]}

Rearranging,

[HCOO^{-}]=\frac{K_{a}[HCOOH]}{[H^{+}]}

Here, pH of solution is 4.15 thus, concentration of hydrogen ion will be:

[H^{+}]=10^{-pH}=10^{-4.15}=7.08\times 10^{-5}M

Similarly, pK_{a}=3.75 thus,

[K_{a}=10^{-pK_{a}}=10^{-3.75}=1.78\times 10^{-4}M

Putting the values,

[HCOO^{-}]=\frac{(1.78\times 10^{-4}M)(100\times 10^{-3}M)}{(7.08\times 10^{-5}M}=0.2511 M

Therefore, the concentration of formate will be 0.2511 M.

4 0
2 years ago
How many moles in 4.3 x 1024 atoms of sodium (Na)?
wel

Answer:How many ions are in 2 moles of NaCl?

2 mol NaCl = 2 x 6.02 x 10 23 = 1.204 x 10 24 NaCl formula units 2 mol NaCl = 2 (2 x 6.02 x 10 23 )= 2 (1.204 x 10 24) = 2.408 x 10 24 atoms *2 moles of sodium chloride contains 2.408 x 10 24 ions (combination of Na + ions & Cl – ions). H

Explanation:

sorry i was running out of time

3 0
2 years ago
What process takes place before an article is published in a scientific journal/
Goshia [24]
Before an article is published in a scientific journal or in any "peer-reviewed" journal the article is reviewed thoroughly by scholars from the journal as well as peers or scholars of the articles author from the same field. This process occurs to provide credibility to the ideas being published and so that readers and other scholars can rely on the validity of the material being published. 
7 0
3 years ago
Other questions:
  • What is Aqua Auras mineral family/class?
    5·1 answer
  • Answer for this question
    13·1 answer
  • a compound has a molar mass of 134.13 g/mol-1 and the percent composition is 44.77% carbon, 7.52% hydrogen and 47.71% oxygen. wh
    12·1 answer
  • Give an example of a substance that is MORE dense in its solid state when compared to its liquid state.
    9·1 answer
  • Determine the density of chlorine gas at 22C and 1.00 atm pressure
    8·1 answer
  • Is heat of fusion an extensive or intensive property? Why?
    6·1 answer
  • Question 5
    5·1 answer
  • Amy's cousins help Andy out and drive him to the soccer field. They travel 15 m/s.
    8·1 answer
  • Pls help me on this I have 5 minutes left to submit
    5·2 answers
  • I have a mixture of three gases in a flask at 25 oC. The total pressure in the flask is 26.2 psi. If my gas mixture consists of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!