6ClO2 + 3H2O -> 5HClO3 + HCl
a) If 71g of ClO2 is mixed with 19g of water, what is the limiting reactant?
b) What mass of HClO3 is expected in part (a)?
c) How many molecules of HCl are expected in part (a)?
I completed part a and b but got stuck on part c. Help!
It would be easier to show you if you showed your work for a and b but I'll try to help not knowing exactly what you have done so far.
You know the limiting reagent. Convert mols of the limiting reagent, whichever it is, to mols HCl produced. Use the coefficients in the balanced equation for the conversion. Now that you know mols HCl, remember that 1 mol of anything contains 6.02 x 10^23 molecules so use that number to convert to number of molecules.
That helps!
Thanks!
1xHcl/6.02XE1023=6.056478405x1023
i dont know pls help
To solve part (c), you need to determine the number of molecules of HCl formed in the reaction. Let's break down the steps to calculate it:
Step 1: Find the number of moles of HCl
First, we need to find the limiting reactant from part (a). The limiting reactant is the one that gets completely consumed during the reaction and determines the amount of product formed.
In part (a), you found the limiting reactant. Let's assume it to be ClO2.
From part (a), you found the moles of ClO2 to be:
moles of ClO2 = mass of ClO2 / molar mass of ClO2
Now you need to use stoichiometry to determine the moles of HCl produced from the reaction and the moles of HClO3 from part (b).
Step 2: Convert moles of ClO2 to moles of HCl using stoichiometry
Using the balanced equation:
6 ClO2 + 3 H2O → 5 HClO3 + HCl
From the equation, the stoichiometric coefficient of ClO2 is 6, and the stoichiometric coefficient of HCl is 1.
moles of HCl = moles of ClO2 × (1 mole HCl / 6 moles ClO2)
Step 3: Convert moles of HCl to molecules of HCl
To convert moles of HCl to molecules of HCl, you need to use Avogadro's number, which is 6.022 x 10^23 molecules per mole.
Number of molecules of HCl = moles of HCl × Avogadro's number
Now that you have all the necessary information, you can calculate the number of molecules of HCl in part (a) of the reaction.