2 years ago

1. Which of the following weighs least?

Chemistry

1 answer:

NeTakaya2 years ago

7 0

Explanation:

cause carbon is less than all of them in periodic table which therefore least in the group

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Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction Pb(NO3)2(aq)+2

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a) volume of ammonium iodide required =349 mL

b) the moles of lead iodide formed = 0.0436 mol

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The reaction is:

$Pb(NO_{3})_{2}+2NH_{4}I -->PbI_{2}+2NH_{4}NO_{3}$

It shows that one mole of lead nitrate will react with two moles of ammonium iodide to give one mole of lead iodide.

Let us calculate the moles of lead nitrate taken in the solution.

Moles=molarityX volume (L)

Moles of lead nitrate = 0.360 X 0.121 =0.0436 mol

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