What is the mass in grams of 5.90 mol C8H18?

Question

A) 0.0512 g B) 19.4 g C) 89 g D) 673 g make sure in your answer you state either A B C or D.thanks! ð

Sarai Dooley Jr. · Accepted Answer

D)...114g/mol. x 5.9mol. = 673g. (mols. cancel).

Sarai Dooley Jr. · Answer

You first need to find out the weight of one mole of C8H18. Go to the periodic table to get the weights of all the elements in your compound then add them.C = 12 grams x 8 = 96 gramsH = 1 gram x 18 = 18 gramsTotal = 96 + 18 = 114 grams in one mole. If you have 5.9 moles, multiply this by the weight of one mole (114 grams) = 672.6 rounded to 673 grams in 5.9 moles.Your answer is D.

Sarai Dooley Jr. · Answer

I hope this answer will help you.number of moles= 5.90 molmolar mass of C8H18 = 12(8) + 1(18) = 96 + 18 = 114g/molIf number of moles = Mass / Molar massTherefore mass= number of moles x molar mass 5.90mol x 114g.mol = 672.6g which is approximately 673 Therefore the answer is D

Sarai Dooley Jr. · Answer

Use the equation mass=no. of moles X Relative formula mass C8H18 = (8x12)+(1x18)=114 (so thats the Relative formula mass) no. of moles = 5.ninety so mass = 5.ninety x 114 =672.6g which may be rounded to 673g do its D

Sarai Dooley Jr. · Answer

D(128+118)*5.9=672.6=673(molar mass of c8h18)*no of molesHEY DUDE which CLASS you are.want to add me asyour friend

Sarai Dooley Jr. · Answer

1 mol of c8h18 weighs 114gtherefore 5.90 moles of c8h18 weighs xgx=(114*5.90)/1therefore x=672.6g~673gthe answer is Dhope this helped!!!

Sarai Dooley Jr. · Answer

I wonder if we are all doing the same school. Where do you guys go?

Sarai Dooley Jr. · Answer

it,s D because wt=m.wt.* moles

Dr. Karlee Tillman

What is the mass in grams of 5.90 mol C8H18?

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