Fill in the coefficients that will balance the following reaction:
1 answer:
You might be interested in
The percent of O in Cr₂O₃ : 31.58%
<h3>Further explanation</h3>Given
Cr = 52.00 amu, O = 16.00 amu
Required
The percent of O
Solution
MW Cr₂O₃ = 2 x Ar Cr + 3 x Ar O
MW Cr₂O₃ = 2.52+3.16
MW Cr₂O₃ =152 amu
Answer: 5
Explanation: pH is defined as potential of hydrogen electrode and measures the acidity or alkalinity of a substance.
It is calculated by taking negative logarithm of ion concentration.
Thus the given solution has pH of 5 which means this is an acidic solution.