Describe, in detail, how to make 3.0 liters of a 3.5 molar hcl solution from an 18.5 molar hcl stock solution

If a solution had a ph of 7 what is the solution

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m