Answer:
The solution's new volume is 1.68 L
Explanation:
Dilution is the procedure to prepare a less concentrated solution from a more concentrated one, and simply consists of adding more solvent. So, in a dilution the amount of solute does not vary, but the volume of the solvent varies.
In summary, a dilution is a lower concentration solution than the original.
The way to do the calculations in a dilution is through the expression:
Ci*Vi=Cf*Vf
where C and V are concentration and volume, respectively; and the i and f subscripts indicate initial and final respectively.
In this case, being:
- Ci= 7 M
- Vi= 0.60 L
- Cf= 2.5 M
- Vf=?
Replacing:
7 M*0.60 L= 2.5 M* Vf
Solving:
Vf= 1.68 L
<u><em>The solution's new volume is 1.68 L</em></u>
Answer:
0.0000004262m
Explanation:
i just looked up a converter.
Answer:
The amount of heat that is absorbed when 3.11 g of water boils at atmospheric pressure is 7.026 kJ.
Explanation:
A molar heat of vaporization of 40.66 kJ / mol means that 40.66 kJ of heat needs to be supplied to boil 1 mol of water at its normal boiling point.
To know the amount of heat that is absorbed when 3.11 g of water boils at atmospheric pressure, the number of moles represented by 3.11 g of water is necessary. Being:
the molar mass of water is:
H₂O= 2* 1 g/mole + 16 g/mole= 18 g/mole
So: if 18 grams of water are contained in 1 mole, 3.11 grams of water in how many moles are present?
moles of water= 0.1728
Finally, the following rule of three can be applied: if to boil 1 mole of water at its boiling point it is necessary to supply 40.66 kJ of heat, to boil 0.1728 moles of water, how much heat is necessary to supply?
heat= 7.026 kJ
<u><em>The amount of heat that is absorbed when 3.11 g of water boils at atmospheric pressure is 7.026 kJ.</em></u>
Explanation:
The octet rule is a rule that governs how atoms combines with each other. It postulates that atoms will prefer to have the stable configuration of noble gases by having eight electrons in their outermost shell.
Compounds forms when atoms combines to attain stability. The atoms of some elements shows no tendency to combine with themselves or other kinds of atoms because their outer energy levels are completely filled.
The driving force for many interatomic bonding is the tendency to have completely filled outer energy levels like the noble gases.
The various interatomic bonds are formed in the bid of the atoms to be isoelectronic in the outer energy level with the noble gases.
This more stable form may be achieved by losing, or gaining electrons or the sharing of pairs of electrons.
Learn more:
octet brainly.com/question/6683097
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Answer:
B is incorrect
Explanation:
Ocean are made of salt water which is undrinkable therefore they are not any type of drinking water source.
