Using the concentration of the base and the volume of the base used, calculate the moles of the base used in the titration. then, using the mass of the acid, determine the molar mass of the acid.
data:
concentration of the base(naoh)= 0.19 m
volume of the base used= 8.72 ml
mass of the acid(unknown)= 0.33 g

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.