How many grams of KCI(s)has been produced from the thermal decomposition of KCIO3(s) that produced 50.0ml of O2(g)at 25 degrees C and 1.00 atm pressure?

Explanation:

We will need a balanced equation with masses, moles, and molar masses, so let’s gather all the information in one place.

Mᵣ:                        74.55

          2KClO₃ ⟶ 2KCl + 3O₂

V/mL:                                50.0

1. Use the Ideal Gas Law to find the moles of O₂

2. Calculate the moles of KCl

The molar ratio is 2 mol KCl:1 mol O₂

3. Calculate the mass of KCl

0

explanation:

488479

rvmoo+478)9.68

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles