   # The mass of 2.50 mol of a compound with the formula ECl 4 , in which E is a nonmetallic element, is 385 g. What is the molar mass of ECl 4 ? What is the identity of E? ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

#### Solutions

Chapter
Section ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 2, Problem 145GQ
Textbook Problem
39 views

## The mass of 2.50 mol of a compound with the formula ECl4, in which E is a nonmetallic element, is 385 g. What is the molar mass of ECl4? What is the identity of E?

Interpretation Introduction

Interpretation: For the given molecule ECl4, the molar mass and the identity of E are needed to be identified.

Concept introduction:

Equation for finding molar mass from mass of a molecule and number moles is,

Molarmass=MassingramsNumberofmoles

• Molar mass of a molecule can be calculated from its molecular formula by taking the sum of atomic masses of all the elements present in it.
• Moles: One mole is equivalent to the mass of the substance consists same number of units equal to the atoms present in 12g of 12C.
• The mole is actually quantity of particles that is Avogadro’s number of particles present in elements or compounds.
• The sum of mass of all atoms present in formula of chemical substance is referred as molecular or formula weight of that substance.
• Mass: It is the quantitative measure of a substance. The amount of matter present in substance is expressed as mass. The S.I. unit of mass is kg.

### Explanation of Solution

The mass and the number of moles of ECl4 is given that 385g and 2.5mol.

Equation for finding molar mass from mass of a molecule and number moles is,

Molarmass=MassingramsNumberofmoles

Therefore, the molar mass of ECl4 is,

Molarmass=385g2

### Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

#### The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Find more solutions based on key concepts
The nutrition objectives for the nation, as part of Healthy People 2020, a. envision a society in which all peo...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

On what does the range of a projectile depend?

An Introduction to Physical Science

Describe the physical properties of gases.

Chemistry for Engineering Students

Why cant the lowest-mass main-sequence stars become giants?

Foundations of Astronomy (MindTap Course List)

Review. A 30.0-g metal hall having net charge Q = 5.00 C is thrown out of a window horizontally north at a spee...

Physics for Scientists and Engineers, Technology Update (No access codes included)

Where would you look for water in our solar system?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin

What is the metric unit of length?

Introductory Chemistry: An Active Learning Approach 