How many hydrogen atoms are in 78.4 grams of hydrochloric acid

Explanation:

According to Avogadro's law, 1 mole of every substance contains Avogadro's number of particles.

1 mole of HCl contains= atoms of Hydrogen

2.15 moles of HCl contains= atoms of hydrogen.

i don,t know so just answer mine

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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