Answer:
A voltaic cell that uses the oxidation of a fuel to produce electricity
Explanation:
A fuel cell is a voltaic cell that converts the chemical energy of a fuel and an oxidizing agent into electricity.
A. is wrong. This definition is so broad that it could include a candle in a cup.
C is wrong. The batteries in flashlights and cell phones are not fuel cells.
Answer:
When Hydrogen Peroxide and Sodium Hypochlorite (NaOCl) are mixed, the two will react vigorously to produce Oxygen gas.
Explanation:
<h3>
Answer:</h3>
56.25 mL
<h3>
Explanation:</h3>
We are given;
Molarity of Na₂CO₃ = 1.50 M
Mass of Na₂CO₃ = 3.975 g
We are required to calculate the volume of Na₂CO₃
Step by step explanation:
<h3>Step 1: Determining moles of Na₂CO₃</h3>
Molar mass of Na₂CO₃ = 106 g/mol
But; moles = Mass ÷ molar mass
Therefore;
Moles of Na₂CO₃ = 3.975 g ÷ 106 g/mol
= 0.0375 moles
<h3>Step 2: Calculating the volume of Na₂CO₃</h3>
Relationship between volume, moles and molarity is given by;
Molarity = Moles ÷ Volume
Thus;
Volume = moles ÷ Molarity
= 0.0375 mole × 1.5 M
= 0.05625 L
But; 1 L = 1000 mL
Therefore; Volume = 56.25 mL
Hence, the volume of Na₂CO₃ is 56.25 mL
