c Dwww.saplinglearning.com/ibiscms/mod/ibis/view.php?id=1960322 Jump to Logout H

Question

c Dwww.saplinglearning.com/ibiscms/mod/ibis/view.php?id=1960322 Jump to Logout Help sapling learning Sapling LearningNorthwestern Oklahoma State University - CHEM 1115 - Fall15 - WICKHAMActivities and Due Dates HW 3b My Assignment Resources 9/30/2015 11:55 PM A 70.5/100 Assignment Information Available From 9/13/2015 06:00 PM Due Date: Points Possible: Grade Category: Graded Description: Policies: Gradebook #Attempts Score Print Calculator Periadic Table Question 9 of 19 9/30/2015 11:55 PM Mapoob 100 sapling learning 100 A sample of C3Hs has 4.48 x 1024 H atoms 100 Homework How many carbon atoms does the sample contain? Number You can check your answers. 100 6.90x 1011C atoms You can view solutions when you complete or give up on any question. You can keep trying to answer each question until you get it right or give up. What is the total mass of the sample? 100 Number You lose 5% of the points available to each answer in your question for each incorrect attempt at that answer 16.8 g C,H, 100 100 Help With This Topic Web Help &Videos; Technical Support and Bug Reports 12 13 100 Previous Give Up & View Solution O Check Answer Next Exit Hint Copyright © 2011-2015 Sapling Learning, Inc.-190 about us careers partners privacy policy terms of use contact ushelp O e 8:32 PM 9/27/2015 Search the web and Windows

Explanation / Answer

Solution :-

Formula = C3H8

Given

4.48*10^24 H atoms

A)How many carbon atoms present

Ratio of the C and H is 3 : 8

Therefore

4.48*10^24 H atoms * 3 C atoms / 8 H atoms = 1.68*10^24 C atoms

B) What is the total mass of sample

We have the atoms of the H using that lets calculate the moles of the C3H8

(4.48*10^24 H atoms * 1 molecule C3H8/ 8 H atoms )*(1 mol C3H8/6.02*10^23 molecules)= 0.9302 mol C3H8

Now lets find the mass using the moles and molar mass

Molar mass of C3H8 = 44.1 g per mol

Mass = moles * molar mass

Mass of C3H8 = 0.9302 mol * 44.1 g per mol

                          = 41.0 g C3H8

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.