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Which is more toxic? Explain your reasoning.a. 1 mol of beryllium, Be, or 10 g of berylliumb. 2 mol of arsenic, As, or 75 g of arsenicc. 2 mol of lead, Pb, or 500 g of lead

a. 10 $\mathrm{g} \mathrm{Be}$b. 2 mol Asc. 500 $\mathrm{gPb}$

Chemistry 101

Chapter 14

Measuring Toxins

Section 3

Avogadro’s Number

Atoms, Molecules and Ions

Composition

Carleton College

Drexel University

University of Toronto

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So this problem wants us to investigate the difference in the grands value in the molds value. So to compare the two numbers, we have to get them in the same unit, so we can either choose grams or moles. So I'm just gonna decide. Let's just choose for the 1st 1 will choose to get it into moles. So we have 10 grams of beryllium and Teoh. Get that into moles. We need to use the molar mass from the periodic table. So the molar mass of beryllium is nine 0.0 one grams per one more. So the grams are opposite each other in this table, so the grams will cancel out so we can achieve moles. This equals when you divide it. That's when they're ones on top of the other ones on the bottom. You would divide, so that equals 1.1 and then a bunch. Other decimals, but and we're comparing that that's versus one more. So 1.1 mole is greater than one more. So therefore, we know that this 10 grams is the correct answer. The next problem is the same. You have 75 grams arsenic and you want to get that animals. So what you'll do is you'll Miller Massive arsenic is 74 point nine to grams per one more. So the grams again cancel and we get one 0.1 And that is compared to or versus, I guess, two moles. So we know that this two moles is greater than the 75 grams. You know, for our last one, we have 500 grams of lead grams off lead and we know the molar mass views in the periodic table is 207.2 grams per one mole again, the grams cancel and we get that equal to two point four mole. When that is compared to to the two moles you want to know which is more toxic. We know that 2.4 moles is greater than two moles, so therefore the 500 grams is more toxic

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