true

Take Class 8 Tuition from the Best Tutors

Affordable fees
1-1 or Group class
Flexible Timings
Verified Tutors

Search in

Atom and Molecular numerical Part 5

20/10/2016 0 0

Q. A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by weight.

Ans:

Total mass of Compound = 0.24 g (Given)

Mass of boron = 0.096 g (Given)
Mass of oxygen = 0.144 g (Given)

Thus, percentage of boron by weight in the compound = 0.096 / 0.24 × 100%

= 40%

And, percentage of oxygen by weight in the compound = 0.144 / 0.24 × 100% = 60%

0 Like 0 Dislike

Follow 0

Other Lessons for You

PRACTISE makes you PERFECT ; ; ; There is no SUBSTITUTE for HARD WORK ;;;;Breathe SUCCESS like OXYGEN

Proper Planning ( reg what portions to be covered today) revising today's class portions & clarifying doubts solving Maths problems regularly ,noting down formulae separately trying to understand...

Kiruthika S.

1 0

Angle Of Elevation And Depression

Angles of Elevation and Depression: You can use right triangles to findout distances, if you know an angle of elevation or an angle of depression of a object. The figure below shows each of these kinds...

Shuvham Singhal

1 0

Understand the concept

Relate what you have read with real life or make a story in your mind so as to understand the concept and learn it easily. Feel it practically and there will be no need to cram and you will remember it for long time

Sandeep Kaur

0 0

5-Study Tips every student needs to follow to get results

Tip-1 of Study Tips:Trying to do all tasks together First and foremost thing to do for being more productive is to prioritize our tasks. When you're clear about your priorities, you never try to do all...

Dio Tutorial Point

0 0

Useful Thought for you all from miss sangita.

Learning is a two way process of both the teacher and the student. Correct form of learning should focus on the way of delivering knowledge to the students. For students,I would say, learn to be patient...

Sangita H.

0 0

Find Class VIII near you

Online Tuition Class 8

Looking for Class 8 Tuition ?

Learn from Best Tutors on UrbanPro.

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you

Class 8 Tuition Questions

what is the meaning of ''इको याणचि ''

35 Answers

Which tree is almost immortal?

24 Answers

What are artefacts?

6 Answers

If I am teaching online then how the students are given the facility to pay the tution fee??

26 Answers

what is the meaning of' baked earth' ? plz describe it.

10 Answers

Looking for Class 8 Tuition Classes?

The best tutors for Class 8 Tuition Classes are on UrbanPro

Select the best Tutor
Book & Attend a Free Demo
Pay and start Learning

Migrate

Class

Subject

Chapter

Migrate to

Concept Solution

Migration Successful

Take Class 8 Tuition with the Best Tutors

The best Tutors for Class 8 Tuition Classes are on UrbanPro

I am a Student I am a Tutor
Name*	Please enter your full name. Please enter institute name.
Email*	Please enter your email address.
Phone*	Please enter a valid phone number.
Location*	Please enter a pincode or area name.
City*	Please enter city name.
Category*	Please enter category.
Gender*	Male Female Please select your gender.
Email ID/ Mobile No.*	Please enter either mobile no. or email.
Enter Password*	Please enter OTP Please enter Password Sorry, this phone number is not verified, Please login with your email Id.