Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. This value was experimentally determined by Amedeo Avogadro.
It would be the same amount. So, 45 ml of NaOH is required to be added to the 45 ml of HCI to neutralize the acid fully. Here is a brief calculation:
Firstly, here is your formula: M(HCI) x V(HCI) = M(NaOh) x V(NaOH)
With the values put in: 0.35 x 45 = 0.35 x V(NaOH)
= 45 ml.
There is 45 ml of V(NaOH)
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- Dotz
C
Ammonia, because it’s a polar molecule, will get attracted to the hydrophilic end while the vegetable oil (non-polar) will interact with the hydrophilic end. Both, therefore have the capacity to dissolve in soap due to the amphipathic properties of soap.
Explanation:
Soap can be categorized as having amphipathic properties. Soap can be composed of fatty-acid chains co-joined with sodium/potassium ions. The fatty acid chains act as hydrophobic ends while the fatty acid acts as the hydrophilic end. This is why soap is a good washing agent The hydrophilic end attached to the ‘dirt’ that needs to be washed away, while the hydrophilic end interacts with the water molecules. Rinsing then washes away the soap including the ‘dirt’.
Learn More:
For more on soap chemistry check out;
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Answer:
20 protons.
Explanation:
20 protons = 20 + charges
18 electrons = 18- charges.
The difference = 20 - 18 = +2
The charge for this ion is plus 2
It is a calcium ion. The element is number 20 on the periodic table.
Answer:
a) Heat energy is absorbed.
Explanation:
What occurs in endothermic reactions?
a) Heat energy is absorbed. YES. This is the definition of an endothermic reaction.
b) Water is produced. NO. Endothermic refers to the heat absorbed and not to the products formed.
c) Oxygen is produced. NO. Endothermic refers to the heat absorbed and not to the products formed.
d) Heat energy is released. NO. This is known as an exothermic reaction.