I'm not quite sure what you mean but if you want to determine how many moles are in a certain molecule you can find your answer on various sites!
Answer:
3
Explanation:
Use the rise over run method. plot the necessary points first in the x and y axis
Answer:
5.9x10²² atoms of Cu are in one naira coin
Explanation:
To solve this question we need to find the mass of Copper. Then, using its molar mass (Cu = 63.546g/mol) we must find the moles of Cu and its atoms using Avogadro's number:
<em>Mass Cu:</em>
7.3g * 86% = 6.278g is the mass of Cu.
<em>Moles Cu:</em>
6.278g * (1mol / 63.546g) = 0.099moles Cu
<em>Atoms Cu:</em>
0.099moles Cu * (6.022x10²³atoms / 1mol) =
<h3>5.9x10²² atoms of Cu are in one naira coin</h3>
45 m/s * 3.6 = 162 km/h. Multiply with 3.6 to go to km:h, divide by 3.6 to go to m/s
