Idon't know how to do this can i get the answers plz it's due in 1 hour

1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o