Docsity
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Docsity AI
Docsity AI
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search for your university

Find the specific documents for your university's exams

Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

Mole Conversions, Summaries of Chemistry

Troy UniversityChemistry

Problem Set A: CaCl2 (Calcium chloride) Calculate molar mass: Ca = 1 x 40.078 = 40.078. Cl = 2 x 35.453 = 70.906 +. Total = Complete these first:.

Typology: Summaries

2021/2022

Uploaded on 09/12/2022

eknathia
eknathia 🇺🇸

4.4

(26)

264 documents

1 / 3

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
More Mole Conversions Name:&____________________________________&
&
Problem(Set(A:(CaCl2((Calcium(chloride)((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((Calculate(molar(mass:(Ca&=&1&x&40.078&=&40.078(
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&Cl&=&2&x&35.453&=&70.906&+&
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&Total&=&
Complete(these(first:&
1&mole&=&________________&molecules&
(
1&mole&=&________________&g&CaCl2&(use%molar%mass)&
&
1.(How(many(molecules(are(present(in(4.5(moles(of(CaCl2?((2.7%x%1024%molecules%CaCl2)(
&
!.! !"#$% !"!"!
!&x&!.!" ! !"!" !"#$%&#$' !"!"!
! !"#$ !"!"!
&=&
&=&
&
2.(How(many(moles(are(present(in(35.6g(of(CaCl2?((0.321%moles%CaCl2)(
&
!".! ! !"!"!
!&x& ! !"#$ !"!"!
!!".!"# ! !"!"!
&=&
&=&
&
3.(How(many(grams(would(2.70(x(1024(molecules(of(CaCl2(weigh?((498%g%CaCl2)(
&
!.!! !"!" !"#$%&#$' !"!"!
!&x& !"#$ !"!"!
!"#$%&#$' !"!"!
&x& ! !"!"!
!"#$ !"!"!
&=&
&=&
&
4.(How(many(molecules(are(in(18.5g(of(CaCl2?((1.00%x%1023%molecules%CaCl2)(
(
! !"!"!
!&x& !"#$ !"!"!
! !"!"!
&x& !"#$%&#$' !"!"!
!"#$ !"!"!
&=&
&=&
&
&
&
&
pf3

Partial preview of the text

Download Mole Conversions and more Summaries Chemistry in PDF only on Docsity!

More Mole Conversions Name: ____________________________________

Problem Set A: CaCl 2 (Calcium chloride) Calculate molar mass: Ca = 1 x 40.078 = 40. Cl = 2 x 35.453 = 70.906 + Total = Complete these first: 1 mole = ________________ molecules 1 mole = ________________ g CaCl 2 (use molar mass)

  1. How many molecules are present in 4.5 moles of CaCl 2? (2.7 x 10^24 molecules CaCl 2 ) !.! !"#$% !"!"! !

x

!.!"! !"!"^ !"#$%&#$' !"!"! ! !"#$ !"!"!

  1. How many moles are present in 35.6g of CaCl 2? (0.321 moles CaCl 2 ) !".!! !"!"! !

x

! !"#$ !"!"! !!".!"#! !"!"!

  1. How many grams would 2.7 0 x 10^24 molecules of CaCl 2 weigh? ( 498 g CaCl 2 ) !.!! !"!"^ !"#$%&#$' !"!"! !

x

!"#$ !"!"! !"#$%&#$' !"!"!

x

! !"!"! !"#$ !"!"!

  1. How many molecules are in 18.5g of CaCl 2? (1.00 x 10^23 molecules CaCl 2 ) ! !"!"! !

x

!"#$ !"!"! ! !"!"!

x

!"#$%&#$' !"!"! !"#$ !"!"!

Problem Set B: H 2 O Calculate molar mass: H = 2 x = O = 1 x = + Total = Complete these first: 1 mole = ________________ molecules 1 mole = ________________ g H 2 O (use molar mass)

  1. How many molecules are present in 1. 1 5 moles of H 2 O? ( 6. 92 x 10^23 molecules H 2 O) !"#$% !!! !

x

!"#$%&#$' !!!

  1. If you have 235g of water, how many moles is this? (13.0 moles H 2 O) ! !!! !

x

!"#$ !!!

    1. 13 x 10^25 molecules of H 2 O would weigh how much? (1,240 g H 2 O) !"#$%&#$' !!! !

x

!"#$ !!!

x

! !!!

  1. How many molecules are in 27.3g of water? (9.12 x 10^23 molecules H 2 O) !

x x = =