2hgo molar mass formula

For this type of calculation, the molar masses of two different substances must be used—be sure to keep track of which is which. Problem What mass of Mg will be produced when Now that we have the quantity in moles, we can use the balanced chemical equation to construct a conversion factor that relates the number of moles of Cl 2 to the number of moles of AlCl 3. In one line,. We will do this in two steps: convert the mass of AlCl 3 to moles and then use the balanced chemical equation to find the number of moles of HCl formed.

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