A student sets up the following equation to convert a measurement. (The stands for a number the student is going to calculate.)
Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together.
1 answer:
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Answer:
The half-reaction for the oxidation of the manganese in to
.:
Explanation:
Let us say the medium in which reaction is taking place is an acidic medium. And balancing in an acidic mediums done as;
Step 1: Balance all the atom beside oxygen and hydrogen atom;
Manganese and carbon are balanced.
Step 2: Balance oxygen atom adding water on the required side:
Step 3: Now balance hydrogen atom by adding hydrogen ion on the required side:
Answer:
the mass of the glycerine needed in the given solution is 23.92 g
Explanation:
Given;
molarity of the solution (C₃H₈O₃), C = 2.60 M
Volume of the solution, V = 100 mL = 100 x 10⁻³ L = 0.1 M
The molarity of a solution is given as follows;
The molecular mass of the given solution;
molecular mass = (12 x 3) + (8 x 1) + (16 x 3)
molecular mass = 92 g/mol
The mass of the glycerine needed in the given solution is calculated as follows;
reacting mass = amount of solute (moles) x molecular mass (g/mol)
reacting mass = 0.26 x 92
reacting mass = 23.92 g
Therefore, the mass of the glycerine needed in the given solution is 23.92 g