1.50 g of a weak acid (molar mass 176) is dissolved in 50.0 ml of water, and the resultant solution is titrated with 0.300 m naoh. when 12.5 ml of 0.300 m naoh is added, the ph of the resultant solution is 4.00. calculate ka for this acid.

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

Explain what happens at the saturation point when adding salt to water at room temperature.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.