Calculate the mass (in g) of each sample.
a. 4.5 * 1025 O3 molecu...

Question

Calculate the mass (in g) of each sample.
a. 4.5 * 1025 O3 molecules

Accepted Answer

Hey everyone were asked how much do 6.4 times 10 to the molecules of tetra phosphorous weight in g. To answer this question, we're first going to need to obtain the molar mass of tetra phosphorous. So looking at our periodic table, we see that we have 30.97 g per mole of phosphorus. Now, since we have four moles of phosphorus, we're going to multiply this value by four, Which will get us to a total molar mass of .88 g of tetra phosphorous per one mole of tetra phosphorous. Now plugging this into our question, We know that we have 6.4 times 10 to the molecules of tetra phosphorous. In order to get two g, we're first going to need to convert from molecules into moles. So we're going to take avocados number which is 6.022 times 10 to the 23rd molecules of tetra phosphorous. And we know that this is the amount in one mole of tetra phosphorous. And now plugging in our molar mass, we know that one mole of tetra phosphorous contains 123.88g of tetra phosphorous, calculating this out and canceling out our units. We end up with a total of 1.3 Times 10 to the 4g of tetra phosphorous, which is going to be our final answer. So I hope this made sense. And let us know if you have any questions

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