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

Which Expressions Are Equivalent to 4(3 + 5) - 3 x 9²? Select (TWO) correct answers. A. 12 + 20 - 243 B. 14 • 81 C. 17 - (27)² D. 4(8) - 3 X 81 E. 12 + 2

Please answer this quickly!! 37 points!!

Which is the correct Lewis structure for the carbonate anion, CO32-? Note, carbon has four valence elctrons and oxygen has six valence electrons.

lara and meera are collecting marbles. lara has double number of marbles meera has when meera's number of marbles is decreased by 8. lara had 20 marbles , (m) w

4. Complete the sentences with the past of the verbs in (): a. I didn't (make) b. My friend coffee today! the day at home.(spend) c. Wallace beautiful present.

Jeremiah is working on a model bridge. He needs to create triangular components, and he plans to use toothpicks. He finds three toothpicks of lengths 4 in, 5 in

Redondea 2.789 nearest 10

what is food service and procedure?

How did the Whigs approach the election of 1840? [Select all that apply.]

The helps identify the field. A.primary key B. field name C. data type D.none of the above