Answer:
8 moles
Explanation:
When we are asked to convert from grams of a substance into moles, we have to use the substance's molar mass.
Meaning that for this problem, we'll <em>use the molar mass of hydrogen peroxide</em> (H₂O₂), as follows:
There are 8 moles in 272 grams of hydrogen peroxide.
Answer:
A larger nuclear charge :)
Explanation:
Answer:
The correct answer is B.2.52 mol
Explanation:
The molarity of a solution (M) expresses the number of moles of solute there is in 1 liter of solution. If we have the molarity (M) and the volume in liters (L), we simply multiply M x V to obtain the moles, as follows:
M = 2.21 = 2.21 moles/L
V = 1.14 L
M x V = 2.21 moles/L x 1.14 L = 2.5194 moles ≅ 2.52 moles
<u>Distance traveled N/S:</u>
(80 m north) + (20 m south) + (60 m south)
(80 m) + (-20 m) + (-60 m)
<u><em>0 m north/south</em></u>
<u>Distance traveled E/W:</u>
(15 m east) + (35 m west)
(15 m) + (-35 m)
-20 m
<u><em>20 m west</em></u>
<u>Resultant distance:</u>
a² + b² = c²
a = 0 m north/south
b = 20 m west
c² = (0 m)² + (20 m)²
c² = (20 m)²
<u><em>c = 20 m</em></u>
<u><em>Overall displacement = 20 m</em></u>