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

The figure below shows a triangular piece of cloth: Triangle ABC has angle ABC equal to 90 degrees and angle BAC equal to 33 degrees. Length of AC is 7 inches.

When moving up along an existing supply curve, all variables other than price are O increasing decreasing O held constant O fluctuating

Calculate the average atomic mass for element X

mon sujet prefere home work pls help me

1) The brave soldier was rewarded ...... a medai. (by/with/in/from) 2) I think it ........ in the evening. (be rain/raining/rained/will rain) 3) The man ..... i

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle by requiring no arbitrary choice of

This graph shows a proportional relationship. What is the constant of proportionality?

Just Question B! One of the numbers in the diagram is chosen at random, find the probability that the number is in set B, giving your answer as a decimal. Gibi

if$3=£2 and Rs. 325=$3, how many pound(£) will be equal to Rs. 39000

I need help with this question.