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Complete the table by writing the relative masses (g) and %'s of the elements found in mole selenocysteineElementMass (in 9) or element in Moie selenocysteine%...

Question

Complete the table by writing the relative masses (g) and %'s of the elements found in mole selenocysteineElementMass (in 9) or element in Moie selenocysteine% of element in mole ot selenocysteine

Complete the table by writing the relative masses (g) and %'s of the elements found in mole selenocysteine Element Mass (in 9) or element in Moie selenocysteine % of element in mole ot selenocysteine



Answers

Use the periodic table shown in Fig. 4.9 to determine the atomic mass (per mole) or molar mass of each of the substances in column $1,$ and find that mass in column $2 .$

Here we will completely given table in the kitchen element and malls and next East months. So, yeah, we have given elements here neon and most 1.11 and next is argon and malls 0.117 And next season on mall is 7.62 and last one is helium mall is equal to 1.44 multiply. 10 days to the government is four. So next mosque According to the given mode here, formula is element in the on here was for neon is equal to 22.5 and urban 4.67 Karen and you know at 1.0 and and helium 5.76 multiplied 10 dressed in the power minus 4 g. Yeah.

So we were looking at several different elements and some formulas And the mass of one mole of atoms. So the elements we have are very mean oxygen, phosphorus, neon sulfa and again, oxygen. That's what we have for the formula. But V. R. Two, which has a massive 159.81 g with the oxygen. We have to Jazz mass of 31.9988 g. Following this, we've got phosphorus which is P4 And this has a massive 1: 3.89505 g. Next we have neon, which has the formula. Just any because it's a noble gap As the formula as a mass of 20.1797 g. Next we have S. Eight. And so this has a mass of 256 0.99 to 56 point 5 to 8. and then we have oxygen. Is our final one. Weather looking at either to Or 03 Ozone. And they have the masses of 31.9988 Or 47.9982 g.

In this question were given these following compounds and elements and asked to determine the molar mass and to match them with the World Bank we have on the right. So let's go ahead and start were given that we can use a periodic table. So for the 1st 1 we have Mulet Denham, which is just the simple elements. If we take a look at your periodic table, you seem a lived in, um, has a molar mass of 95.95 Grand's promote this. If we take a look at the World Bank, matches up with C. So that one was easy enough. Let's go ahead and go to Lansing. Um, take a look at our word or I'm sorry. Our periodic table, we figure out the Moeller massive lantern, um is 138.9 grams for more. We take a look at our World Bank. We see that matches up with E. Now we're given a bunch of compounds. We have carbon tetra bromide. So let's go ahead and make okay formula for that. Since we know this is a molecular formula, we know carbon. There's just one because there's no die carbon and try carbon and tetra means four bro means So here's our compound formula. Now Carbon has a molar mass of 12 grams. Pramono and Bro mean has a molar mass of 79 0.9 grams from old. So if we take 12 plus 79.9 times for, we should get the molar mass, which equals. And I'm sorry, that's supposed to be in nine right there. 331.6 grams per mole. And this matches up with the J. And our question Next, we have mercury to oxide. So remember what we're dealing with. Ionic compounds. The Roman numerals indicate the charge on the cat eye on an eye on a compound. So we know that mercury has a plus to charge, and oxygen when it's involved in ah, Ionic compound has a negative to charge. So because these both add up to a neutral charge, we know that the compound is simply h g o. Now, Mercury. I'm sorry. Oxygen has a molar mass of 16.0 grams per mole, and mercury has a molar mass of 200 0.6 grams for more. So we take these together, we add them. You find that mercury to oxide has a molar mass of 216.6 grams per mole. We take a look at the World Bank and we see that this matches up with H. So let's go ahead and do the same thing. We have titanium, four oxide. So, no. Now we know titanium has a plus four charge and oxygen because the minus two charge, we need this compound to be neutral. So the only way we're gonna do that, it's We can somehow get oxygen to become a negative four charge. We can do this by adding to oxygen's so a compound is t i. 02 Titanium has a molar mass of 47 0.9 grams from old, and each oxygen atom has a molar mass of 16 grants from all. So we have 47.9 plus 16 plus 16 which comes out to 79.9 grams from all. Taking a look at her word bank. We see that this matches would be next. We have manganese to chloride, so now we know manganese. There's a plus to charge. Chlorine typically has a minus one charge, So we need to Corinne's to make this a neutral element. Flooring has a molar mass of 35.5 grams from all, and manganese is a molar mass of 54.9. So the more massive this compound is going to be 54.9. It was 35.5 plus 35.5 for the two Corinne's, which comes out to 125.9 grams from old. And this matches up with De Next. We have false bean, and they've already given us the formula. So phosphorus was a molar mass of 30.97 and hydrogen just has a molar mass of one gram promote through the molar mass of this compound is 33.97 grams from old, which coincides with a Now we have 10 to fluoride, you know, 10 as a plus to charge, and flooring typically has a negative one charge. So to make this compound neutral, we need two florins Now. Florian has a molar mass of 19 grains from oh, and 10 has a molar mass. 118.7 grams from all. So we add these together get a molar mass of 1 56.7 which matches up where the G. Now we have lead two sulfide that has a positive to charge. And so for is in the same period as oxygen. Excuse me? The same group as oxygen. So it also has a negative to charge. So this assembly PBS so for has a mole in miles of 32 grants from all and lead as a molar mass of 207.2 grams remote. So this molar mass, it's going to be 200 and 39.2 grams for more, which matches up with I. Lastly, we have copper one oxide. So copper's gonna have plus one charge. Oxygen is gonna have a minus two charge. So we need to coppers to make this neutral again. Oxygen's modern masters, 16 grams from all and coppers. Molar mass is 63.5 grams for more. So we have a molar mass of 95 0.5 grams per mole, which is our only remaining answer left, or I'm sorry. We need to coppers in this. So it's actually 95.5 plus 63.5 again, which is 159 grants from all. Sorry, I did the math wrong again. 1 43 creams from old.

Here we are completing a table for the elements and their respective atomic weeks and massive one. All of us the elements you have S and 10 for a meet magnesium, chromium, Where the atomic weight is equal to the massive one mole of atoms and of our atomic weight 118.710 79.904, 24.3050 And 51.9961. Where the massive one mall of atoms is the exact same as these values that we have listed under the atomic weights.


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