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Paul [167]
4 years ago
15

7. What is the prefix value for 100X?

Chemistry
2 answers:
Anni [7]4 years ago
7 0

Answer:

The 'centi 'is the prefix value for 100X

Explanation:

Kilo unit =  0.001 × unit

Hecto unit  =  0.01 × unit

Deca unit  = 0.1 × unit

unit = 1

deci unit  = 10  × unit

centi unit  = 100 × unit

milli unit = 1000 × unit

So, the prefix value for 100X will be: centi

100 X = centi X

Lilit [14]4 years ago
4 0

Answer:

hecto-

Explanation:

The prefix value of 100 is hecto therefore 100X can be called hecto-x.

Such prefixes as this are expressed in the order of tens. Units generally exists scientifically in multiples and submultiples form using prefixes.

For the multiples:

             10                            deca(da)

            100                           hecto(h)

            1000                        kilo(k)

         1000000                    mega(M)

         1000000000            giga(G)

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<h3>Answer:</h3>

The root mean square speeds of O₂ and UF₆ is 513m/s and 155 m/s respectively.

<h3>Solution and Explanation:</h3>
  • To find how fast molecules or particles of gases move at a particular temperature, the root  mean square speed is calculated.
  • Root mean square speed of a gas is calculated by using the formula;

       Root mean square=\sqrt{ \frac{3RT}{M}

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<h3>Step 1: Root mean square speed from O₂</h3>

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Molar gas constant = 8.3145 J/k.mol

Root mean square speed = \sqrt\frac{(3)(8.3145)(338K)}{0.032}

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The molar mass of UF₆ is 352 g/mol or 0.352 kg/mol        

Root mean square speed = \sqrt\frac{(3)(8.3145)(338K)}{0.352}

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Therefore; the root mean square speeds of O₂ and UF₆ is 513m/s and 155 m/s respectively.

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