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horrorfan [7]
3 years ago
10

The simplest type of stream cipher, one in which one letter or character is exchanged for another, is known as what?

Chemistry
1 answer:
QveST [7]3 years ago
5 0

Answer: This is known as substitution cipher.

Explanation:

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Chlorine is used to make bleach solutions containing 5.25% NaClO (by mass). Assuming 100% yield in the reaction producing NaClO
Archy [21]

To make 1000. L of bleach solution 1.69×10⁴ L of Cl₂(g) at STP will be needed .

<h3>What is Balanced chemical equation?</h3>

A balance chemical equation is an equation that contain same number of atoms as well as of each element on each side of reaction.

<h3>What is Density?</h3>

It is ratio of mass to the volume.

Density= \frac{Mass}{Volume}

Now,

   The balanced chemical equation of preparing bleach from chlorine is as follow:

Cl₂(g) + 2NaOH(aq) → NaClO(aq) + NaCl(aq) + H₂O(l)

Now,

  To calculate the Moles of NaClO in 1000L solution, first calculate it's mass.

Mass of NaClO = Density × Volume

                         =  1.07\frac{g}{ml} × 1000L × \frac{1000mL}{1L} ×\frac{5.25}{100}

                         = 56175g

Now, we have to calculate moles of NaClO

Hence,

  Moles of NaClO = \frac{amount of NaClO}{molar mass of NaClO}

                              =  \frac{56175g}{74.44\frac{g}{mol} }

                              = 754.63 mol

Now,

According to the reaction number of moles of Cl₂ is equal to the number of moles of NaClO.

Hence,

  moles of Cl₂ = 754.63 mol

Now , in order to calculate litres of Cl₂ at STP,

 We know that

 1 mol Cl₂ = 22.4 L of Cl₂

 754.63 mol of Cl₂ = 754.63 mol × 22.4 L

                               =   1.69×10⁴ L of Cl₂

Thus from the above conclusion we can say that , to make 1000. L of bleach solution 1.69×10⁴ L of Cl₂(g) at STP will be needed .

Learn more about Balanced Chemical Equation here:brainly.com/question/27135494

#SPJ4

       

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PLZ HELP Question 14 of 25 What is the name for a representation of the physical world?
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What is the steps of <br> Photosynthesis?
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