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3 years ago

If the mass of monomer 105 atomic mass units, find the mass of a polymer contianing 122 monomers

1 answer:

3 0

<span>12810 atomic mass units
Since a monomer is the basic building block of a polymer, we just need to multiply the mass of the monomers by the number of monomers used. So 105 atomic mass units * 122 = 12810 atomic mass units</span>

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What is the conecntration of Fe3 and the concentration of No3- present in the solution that result when 30.0 ml of 1.75M Fe(No3)

zvonat [6]

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Here, a solution of Fe(NO₃)₃ is diluted, as the total volume of the solution has increased. The formula for dilution of the compound is mathematically expressed as:

$C_{1}. V_{1}= C_{2}.V_{2}$

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There are three moles of nitrate is 1 mole of Fe(NO₃)₃. This means that the initial concentration of nitrate ions will be three times the concentration of ferric nitrate i.e., it will be 5.25 M.

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$[NO_{3}^{-}]=\frac{(5.25)(30.0)}{30.0+45.0 }$

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3 years ago

Which of the following statements about protons are true?

Sliva [168]

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3 years ago