CH102 Postlab 01 Moles, Mas..

CH102 Postlab 01 Moles, Mas.. - CH102 Postlab 01 Moles Mass...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Stephanie Mayor CH 102, section 023, Fall 2009 Instructor: Matthew Correll Lehman TA 1. 5/5 points All Submissions Notes Web Assign CH102 Postlab 01 Moles, Mass and Volume (Postlab) Due: Thursday, September 3, 2009 11:00 PM EDT About this Assignment Ask Your Teacher Extension Requests Question Points 1 2 3 4 5 5 8 2 8 2 Total 25/25 The due date for this assignment is past. Your work can be viewed below, but no changes can be made. Important! Before you view the answer key, decide whether or not you plan to request an extension. Your Instructor may not grant you an extension if you have viewed the answer key. Request Extension View Key Part A: How big is a mole? In lab, you determined how many kernels of popcorn you could count in 30 seconds. Use the factor label method and result reported below by another student (it should be similar to your result) to answer the questions below. Use e notation for large answers (4.9x10 16 = 4.9e16) 27.7 kernels in 30 seconds a. What is the average rate at which the student counted popcorn kernels? .92333 kernels/second OR 1.083 seconds/kernel b. Using the answer above as a conversion factor, determine the time, in seconds, that it would take to count one mole of kernels. 6.522e23 seconds c. Using the following conversion factors, calculate the number of years it would take to count one mole of kernels. 3600 seconds = 1 hour
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/24/2009 for the course CHEM 102 taught by Professor Zaowang during the Spring '08 term at N.C. State.

Page1 / 4

CH102 Postlab 01 Moles, Mas.. - CH102 Postlab 01 Moles Mass...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online