What is the molality of a solution that contains .5 mol of HC2H302 in 0.125 kg
H2O? *
(1 Point)
5m
0 am
3 m
4 m

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.

Define dew point. i am writing this part to be able to ask the question

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?