How many moles are in 8.45g of NaOH

Calculate the concentration of all species in a 0.165 m solution of h2co3.

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)

To separate a mixture of hard candies nd marbles the most efficient method would be