The solubility in acetonitrile of organic compound O is measured and found to be 0.518 g/ml at 10°C. Calculate the volume of a saturated solution of O in acetonitrile that would contain 25.0 g of O at this temperature.

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

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.

  the mississippians were considered to be  horticulturalists, which means they were