(NH4)2SO4(s) + 2NaOH(aq) → Na2SO4(aq) + 2NH3(g) + 2H200) What mass of sodium hydroxide is required to react
completely with 15.4 g of (NH4)2SO4?

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.