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2b) How many grams of calcium um fuoride are there in 4.65 g fluorine? @AFz 4,653When heated in air 63 g of Zn reacts with 0.40 g of oxygen to give Zno Calculate th...

Question

2b) How many grams of calcium um fuoride are there in 4.65 g fluorine? @AFz 4,653When heated in air 63 g of Zn reacts with 0.40 g of oxygen to give Zno Calculate the percent composition of the compound formed.

2b) How many grams of calcium um fuoride are there in 4.65 g fluorine? @AFz 4,653 When heated in air 63 g of Zn reacts with 0.40 g of oxygen to give Zno Calculate the percent composition of the compound formed.



Answers

A 5.025 -g sample of calcium is burned in air to produce a mixture of two ionic compounds, calcium oxide and calcium nitride. Water is added to this mixture. It reacts with calcium oxide to form $4.832 \mathrm{~g}$ of calcium hydroxide. How many grams of calcium oxide are formed? How many grams of calcium nitride?

Okay, so the general equation we're gonna use here is that our massive magnesium should equal our massive chlorophyll. Okay. Times the percentage of magnesium in that compound. Right. So we're going to use um the molar mass of magnesium here, Which is 24 .305. And it's a massive one more. We don't know the mass or the molar mass of our chloroform. Okay, so this isn't grams per mole. Well this will come out in grams per mole and will multiply it by the percentage of magnesium which was given to us as 272%. So we'll do 2.7 to over 100. So then we just need to do a little bit of math and we'll get that the molar mass of our core reform is 894 grams per mole.

And given information for party. We have the myself thing. He's I myself think, is equal to 80 point 89 point six. Good. Um and we have to find we have to find the mice off. Most off kills you metal, they condense the same number off Moors is given Iman tough using metal. So the number of more self jinkies, I think, is number of Morse off. Thing is it will do given myself Dink divided by more than myself. Thing is equal to 89 point 6 g. Is the given myself think and model masses 65 0.38 ground. But, um on is it will do 1.37 more So number off mall self and thing is 1.37 more and number of more self thing is equal to numbers. Number of more self kills him is it will do one point 37 more so dear for the myself, Guilty is kill. She, um is myself kills him, is equal to number of more self gives you into Moeller myself kills him is it will do 1.37 morn into more of myself gives him his 40 point zeros even it go home. Parimal is equal to 54.92 I got home is the myself guilty? Um And given information for Barbie, we have the number of more self Most, um are gone number more self organise equal to 36 point nine mold. So we have to kill Glade. Calculate the number out more self more killer Floren they had contains the same must is given amount off. Ergen still the most off organise Is it better to number more self are going into Moller myself Argon is equal to do three c x point nine more into Muller. Most of organ is 39 point for eight ground Permal the calculated must off our gun is 14 seven floor 0.8 ground So and what's up? Our gun is equal to most off Florian multicolor flooring is equal to 1474.8 The room dear for the number of more self Moelis off, molecular flooring is number off. Also, more killer flooring is equal to must Off Lorene one color florin divided by do into Mordor myself flooding is it will do given myself multiple Florian is 0.8 grand, divided by more killer myself. Lauren east to into it, Dean going nine 98 Drum Berman is equal to 38. Blind 80 more is the calculated mullah more fuller flooring. So the given information for Parsi we have to find the most off change to its a four. If it convenes zero point 56 Moles are oxygen sings one more off history, so four contains four morals. Uh, oxygen didn't but off more selfish trousseau. Four. Is truce afford sulfuric issued that will contain 0.56 more self or Dewey's Morse off? Or is we have different mullah? Number of more self is to is so far is it will do. Number of more self oxygen divided by four is equal to zero point five or six small and divided by four is equal to 0.14 more. So the Moeller myself history. So four is the Moller must of is toe eso. Four is Moller myself is to a so Ford is equal to two into Moller myself. Hydrogen less. We learned myself suffer less. All in do more of myself. Occident is equal to do into 1.8 Good on, but Ammon, plus Modern must've sent for is 32 point little 65 ground. But Ammon, less four into a model mass of oxygen, is 15.999 ground We're alone is able to the calculated mother myself. Security gates. It is 98 point 077 gram, but a mole so they're far The moss is to is a four is myself is to a so four is equal to number of more self is two so four in tow. Moeller myself is to isso for is equal to number more selfish. Do so for Israel. 0.14 wall in two more months off issues a four east 98 point 077 grand Barmal his equal do 17 point See one tree. The down is the most off. Some Heurich isn't given information for party. We have to find the number of more self moles. Off is tree your four the IT contains Do point went to Graham off hydrogen it dems. So first, first we will find the number off. It owns the number off malls, story malls off hydrogen It, um, anthems So here number of more self hydrogen in terms is equal to myself. Hydrogen Get Tom divided by mother myself. I drudging is equally true. 2.1 to Grandma. They don't id Rajan. Eight amounts of hydrogen atom divided by molar mass of hydrogen atom is 1.8 deron, but more is equal to no point 10 more is the calculated number are more self hydrogen Aidem, since one more off its tribute for contains three Moeller hydrogen. The number off, more self a strip you for date will contain through 0.10 more self hydrogen ease. No, but I'm more self is three. Beauty for is equal to number more sound. Hydrogen divided by three is it will do to a 0.10 more Divided by C is equal to zero point 70 more. So here, one more off his trip you for contains three more self hydrogen. The number of more self distribute for date will contain 2.10 more self I Jordan. He's number more self a strip your, for example to number of more self. I'd Rosen, divided by three, is equal to number of more stuff. Hydrogen is 2.10 Moles divided by three is equal to 0.7 Tzeitel. More

All right. If you've got calcium combining with carbon to produce calcium carbide and we want to know the massive calcium. Given 2.44 g of carbon. Take your 2.44 g of carbon divided by its smaller mass, which is 12.1 g. Put one more on the other side, the coefficient in front of carbon. Is it too? So it goes down here? The coalition front of calcium is a one, so it will go up here at the top. Multiply by the molar mass of calcium. Seems Of Calcium, which is 40.08. You're gonna end up with 16.32 g of calcium.

Everyone in this question. We have floor, right? Many law this for not from right mineral containing calcium and containing marine This for right mineral assemble. Its weight is to born 76 grand and the weight off calcium is one going for to Graham. So what will be the weight off? Floria? Is that right? Mineral is some off calcium and Florian. So if we want to know the weight off Flory, it will be the way off. No, Right, Sam. Bill. Negative to the weight off guns you. So it will be 2.76 Negative. 1142 So it will be equal 1.34 grand. So now we can ride that The weight off marine is one born 34 gram, which is is is the answer off the first bar? The second part? We want to know the mass fraction off calcium and the mass fraction. Oh, Marie. So mass fraction will give eating on M f. The mass fraction for calcium. See the mask off calcium divided by the massive assembled. So it will be one going for two. The boy's voice, two points, 76 toe be the value equal. Oh, going to find 14 and the mass fraction. Oh, from Renee's equal the muscle flooring, which is a 1.34 divided by the mass of symbol, which is 2.76 Toby The answer or point for a fine? No. We can convert the mass fraction to mass percentage, which is a mask percentage in equal. The mass fraction times by one run DRI tsunami can say is that the mass percentage for calcium is fine. Form for percentage, which we will find this bomb 100. Well, severe. The mass percentage off Loreen is for a 0.5% which we turned the mass fraction boy 100. Thank you.


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