Moles of lead(Pb) = 1.6x10^23/6.02x10^23 = 0.265 moles.
Weight of lead = moles x atomic weight of lead
= 0.265x207.2
= 54.908 grams.
Hope this helps!
I think the correct answer from the choices listed above is option A. It is the salt bridge that balances charges that may build up as reduction and oxidation occur in a voltaic cell. The salt bridge is to <span>maintain charge balance because the electrons are moving from one half cell to the other.</span>
The given compound 3-chloro-2,2,5-trimethylhexane is an optically active compound .
Because this compound does not have plane of symmetry (POS) and center of symmetry (COS) i.e. does not have di-symmetry . And also forms non superimposable mirror image . the compound is optically active .
It has chiral center.
Here the chiral carbon has 4 distinct groups such as : chlorine , hydrogen , 2-methylpropyl , tertbutyl .
<h3>What is di-symmetry?</h3>
Di-symmetry is that which have no center of symmetry and plane of symmetry and alternate axis of symmetry .
<h3>Chiral center :</h3>
Have Sp3 hybridized center (4sigma bond ) .
4 distinct group is attached to the chiral atom. form non -superimposable mirror image .
<h3>What is optical isomerism ?</h3>
Same molecular formula and same structural formula . also have same physical and chemical properties .
They differ in their behavior towards plane polarized light (ppl) .
Learn more about chiral center here:
brainly.com/question/9522537
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Answer:
14.64 grams of carbon
Explanation:
The Molecular formula of Glucose is C₆H₁₂O₆.
From the molecular formula, the Molar mass of Glucose is,
Mass of Carbon in Glucose = 6*12 = 72.
Mass of Hydrogen in Glucose = 12*1 = 12.
Mass of Oxygen in Glucose = 6*16 = 96.
Molar mass of Glucose = 72+12+96 = 180 grams.
180 grams of Glucose contains 72 grams of Carbon.
How many grams of Carbon are there in 36.6 grams of Glucose.
180 --> 72
36.6 --> ?
Let it be 'x' grams
Then, by Criss Cross, (x)(180) = (36.6)(72) => x = 14.64 grams.
Therefore 14.64 grams of carbon are there in 36.6 grams in glucose.
Answer:
3.011 × 10²³ particles
Explanation:
Given data:
Number of moles = 0.5 mol
Number of particles = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
one mole of substance = 6.022 × 10²³ particles
For 0.5 mole of substance:
0.5 mol × 6.022 × 10²³ particles / 1 mol
3.011 × 10²³ particles
