dnjfuebdgefe8303 dnjfuebdgefe8303

03-03-2018
Chemistry

contestada

If the calcium oxide were to be obtained by the heating of calcium hydroxide, how much hydroxide would be needed to obtain the 15.0 g?

Respuesta :

altafmushrafp5fo2o altafmushrafp5fo2o

12-03-2018

Ca(OH)2 -------> CaO + H2O
ratio is 1 : 1
CaO Mr= 56g
15/56 = 0.268 mol (mols of CaO in 15g)
Ca(OH)2 Mr= 74g
0.268x74= 19.83g (required amount of Cash(OH)2)

Answer Link

Otras preguntas

how is a knoll formed

Factor the expression -10x^2-41x-21

kilo- - 1,000deka- - 10How much larger is a kilo- than a deka-?

What is a scale on a map?

An aircraft has a liftoff speed of 33 m/s. what minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 240m?

Which best describes Germany’s standard invasion strategy at the beginning of World War II?a. Attack with a combination of speed and overwhelming forceb. Intimi

If -2(3y+5)=-4, find the value of 5y

How do three planes intersect at one point?

Who were the British allies and how did they help them to win so many battles in the American Revolutionary

What conditions must be met in order for a reaction to be considered exothermic?