Litmus paper maybe? There are a bunch of things you can use for this, but high school chem teachers love their litmus paper
Answer : The molarity of solution is, 1.216 g/mole
Explanation : Given,
Density of acetic acid = 1.049 g/ml (standard value)
Volume of acetic acid = 16.00 ml
Volume of solution = 230.0 ml
Molar mass of acetic acid
= 
First we have to calculate the mass of acetic acid.


Now we have to calculate the molarity of solution.



Therefore, the molarity of solution is, 1.216 g/mole
The answer would be C to this question!
Answer:
pH will always be less than 7
Explanation:
This is because NH3 is a relatively weak base and the resulting Acidic salt on titration might hydrolyse to form a buffer solution
Answer:
See below
Explanation:
The way to calculate this
speed of light = wavelength * frequency
3 x 10 ^8 m/s = wavelength * 2450000000 Hz
wavelength = .12245 meters
= 1.2245 x 10^-1 Meters