20 g of contains ions of
<h3>What is Mole?</h3>
A mole is a unit to measure an amount of any substance which contains as many elementary particles as there in 12 g of Carbon 12.
A mole contains particles and this fixed number is called Avogadro’s number.
No. of moles is given by,
where m = Given mass in grams
M = Molar mass
Here,
No. of moles of = = 0.132 moles
No. of molecules of = 0.132 x 6.022 x = 7.94 x
No. of molecules of = no. of ions of = no of ions of
Thus, no. of ions in 20 g of is 7.94 x
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C. Antarctica and Greenland
Answer:
- Volume of the solution will increase.
- Molarity will decrease.
Explanation:
Hello,
In this case, for molarity, unit of concentration relating the moles of solute and volume of solution, we have:
Hence, since the given molarity is 0.70M, we first shall infer that by adding more water, that for sure is the solvent, the volume of the solution will increase which will be the first change. Moreover, since the volume and the molarity are in an inversely proportional relationship, as the volume increases the molarity decreases, which is the other change. In addition to the aforementioned statements, the moles of the solute are not modified as just water is added.
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Answer:
12 moles of water (H₂O)
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
6CO₂ + 6H₂O —> C₆H₁₂O₆ + 6O₂
From the balanced equation above,
6 moles of H₂O reacted to produce 1 mole of C₆H₁₂O₆.
Finally, we shall determine the number of mole of H₂O required to produce 2 moles of C₆H₁₂O₆. This can be obtained as follow:
From the balanced equation above,
6 moles of H₂O reacted to produce 1 mole of C₆H₁₂O₆.
Therefore, Xmol of H₂O will react to produce 2 moles of C₆H₁₂O₆ i.e
Xmol of H₂O = 6 × 2
Xmol of H₂O = 12 moles.
Thus, 12 moles of water (H₂O) is needed to produce 2 moles of glucose (C₆H₁₂O₆).
Distillation is a technique used to separate pure liquids from a mixture of liquids by boiling the mixture to the respective boiling points of the components and selective condensation. The pure liquid separated out after the condensation of vapors is called distillate. The distillate collected is expected to be pure. The purity of the distillate can be measured by recording the boiling point of that liquid. For example, if we have water separated out it should boil at 100 otherwise it can be treated as impure.