Explanation:
It is known that molarity is the number of moles present in a liter of solution.
Mathematically, Molarity = 
Hence, calculate the molarity of given solution as follows.
Molarity of citric acid = 
= 
= 0.173 M
As citric acid is a triprotic acid so, upon dissociation it gives three hydrogen ions.
Normality = Molarity × no. of hydrogen or hydroxide ions
= 0.173 × 3
= 0.519 N
Thus, we can conclude that molarity of given solution is 0.173 and its normality is 0.519 N.
Answer: A
Explanation: the only way to turn it from blue to yellow is to mix it with an acidic solution.
Heat Transfer Lab
The following represents a lab set up for heat transfer. The cup on the left started with boiling water at 100 degrees C and the cup on the right has water at 20 degrees C. There is an aluminum bar between the two cups allowing heat to transfer from one cup into the other. The set up will be left alone for 20 minutes and temperatures of each cup of water will be recorded every minute for 20 minutes.
mag-aral ka
The flow of electricity is an electric current. The path that an electric currents floes is a circuit.
