30.0 g of NaCl(s) is added to water to make 800 mL of salt solution. a) Determine the number of moles in 30.0 g of NaCl(s). (1 mark)

b) Calculate the molar concentration of this salt solution. (1 mark)

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.