Asked by Margie Hammon on Jun 20, 2024
Verified
If 8.0 g of hydrofluoric acid reacts with 16.0 g of sodium hydroxide, producing 16.8 g of sodium fluoride, how much water is also produced?
A) 16.0 g
B) 24.0 g
C) 7.2 g
D) 0.8 g
Hydrofluoric Acid
A highly corrosive acid made of hydrogen and fluorine that is used in various industrial processes.
Sodium Hydroxide
A highly caustic metallic base and alkali salt, used in many industrial processes, often known as lye or caustic soda.
- Ascertain the mass involved in a chemical reaction by employing the principles of the Law of Conservation of Mass.
Verified Answer
LN
Loren NeversJun 23, 2024
Final Answer :
C
Explanation :
The reaction between hydrofluoric acid (HF) and sodium hydroxide (NaOH) produces sodium fluoride (NaF) and water (H2O). According to the law of conservation of mass, the mass of the reactants equals the mass of the products. Given that 8.0 g of HF and 16.0 g of NaOH react to produce 16.8 g of NaF, the total initial mass is 8.0 g + 16.0 g = 24.0 g. Subtracting the mass of the NaF from the total mass gives the mass of water produced: 24.0 g - 16.8 g = 7.2 g.
Learning Objectives
- Ascertain the mass involved in a chemical reaction by employing the principles of the Law of Conservation of Mass.