How many grams are in 8.200 x 10^22 molecules of n216?
n2l6
o a) 1.27x 10-25
o
b) 21.09
o c) 4.94 x 10^46
od) 3.19 x 10^44
o e) 9.33 x 10-25

107.23 g N₂I₆

We are given 8.200 x 10^22 molecules of N₂I₆

Required to determine the mass of 8.2 x 10^22 molecules of N₂I₆

We will use the following steps:

Step 1: Number of moles of N₂I₆

Using the Avogadro's constant;

1 mole of a compound contains 6.022 × 10^23 molecules

Therefore;

8.200 x 10^22 molecules of N₂I₆ will have ;

= 8.200 x 10^22 molecules ÷ 6.022 × 10^23 molecules/mole

= 0.136 mole

Thus, number of moles of N₂I₆ is 0.136 mole

Moles of 8.200 x 10^22 molecules of N₂I₆ is 0.136

But;

Mass = moles × molar mass

Molar mass of N₂I₆ = 789.44 g/mol

Therefore;

Mass = 0.136 mole ×  789.44 g/mol

         = 107.36 g N₂I₆

i think slash and

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.