What is the molarity of a solution of 14.0g NH3Br in enough H2O to make 150cm3 of solution

During chemistry class, carl performed several lab tests on two white solids. the results of three tests are seen in the data table. based on this data, carl has concluded that substance b must have bonds.

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution