Answer:
1.31M
Explanation:
Based on the reaction, 1 mole of Zn produce 1 mole of ZnCl₂. As the reaction occurs completely, the moles of Zn added = Moles of ZnCl₂ produced. To find molarity we need the moles of ZnCl₂ and the volume of the solution in liters:
<em>Moles Zn = Moles ZnCl₂ -Molar mass Zn: 65.38g/mol-:</em>
15g * (1mol / 65.38g) = 0.23 moles of ZnCl₂
<em>Volume in Liters:</em>
175mL * (1L / 1000mL) = 0.175L
The molarity is:
0.23moles / 0.175L
<h3>1.31M</h3>
Number of moles of Cu in 63.546 g is 1 mole
1 / 63.546 = 0.0157366317
Number of moles in 1 g of Cu is 0.0157366317
0.0157366317 x 0.1431
0.002251912 moles will be the answer
31 protons 31 electrons and 39 nutrons
Answer:
the individual atom in the molecule
Explanation:
In chemistry, the ball-and-stick model is a molecular model of a chemical substance. Invidual spheres there represent atoms in the molecule. The bigger atomic number the atom has, the larger diameter of the spheres this atom has in this model.
I hope this answer will help you. Have a nice day !