Question

7. There are three isotopes of silicon. They have mass numbers of 28, 29 and 30. The average atomic mass of silicon is 28.086

I need 7 and 8 answered Thanks

0 0
Add a comment Improve this question Transcribed image text
Answer #1

To calculate the average atomic weight of silicon uses the following steps: 1. Each exact atomic weight of isotopes of silico

Add a comment
Know the answer?
Add Answer to:
I need 7 and 8 answered Thanks 7. There are three isotopes of silicon. They have mass numbers of 28, 29 and 30. The...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • What is the mass, in grams, of 9.41 • 10^24 Naturally occurring silicon consists of three...

    What is the mass, in grams, of 9.41 • 10^24 Naturally occurring silicon consists of three isotopes with the following isotopic masses and abundances: Isotope Isotopic mass Abundance (%) 28si 27.9769265327 92.2297 29si 28.97649472 4.6832 30si 29.97377022 3.0872 Calculate the average atomic mass of naturally occurring silicon to at least four significant figures. Number a mu 200 How many photons are produced in a laser pulse of 0.720 J at 615 nm? photons: TOOLS x70

  • Mass numbers (the integers) and isotope masses (with all the decimal places) for each isotope are...

    Mass numbers (the integers) and isotope masses (with all the decimal places) for each isotope are universal numbers: calcium-40 has the same mass on Pluto as it has here. The average atomic masses one finds on periodic tables, however, is specific to Earth because the natural abundances vary Suppose you are on a planet where the percent abundances of isotopes of calcium are as follows: Isotope lsotope Mass (amu) % Abundance 40Ca 39.962590865 80.09 42Ca 41.95861783 0.46 43Ca 42.95876643 0.09...

  • Review Constants Periodic Table Part A Atomic mass is a weighted average of the masses of...

    Review Constants Periodic Table Part A Atomic mass is a weighted average of the masses of the naturally occurring isotopes of that element. For example, consider isotopes of lithium: Abundance Mass Isotope (%) (amu) Li 7.5 6.015 On a mission to a newly discovered planet, an astronaut finds copper abundances of 69.15 % for Cu and 30.85 % for 65Cu. What is the atomic mass of copper for this location? The mass of Cu is 62.9300 amu . The mass...

  • need exercise 2.1 answered numbers 1 and 2 thanks BRILP EAERLISE 2.) Computing Change in Cash...

    need exercise 2.1 answered numbers 1 and 2 thanks BRILP EAERLISE 2.) Computing Change in Cash U umng the current year: • Earned revenues of $100.000 and incurred expenses of $56,000, all in cash. Purchased a truck for $25,000. Sold land for $10,000 • Borrowed $15.000 from a local bank. What was the total change in cash during the year? LO2-8 BRIEF EXERCISE 2.8 Alternative Forms of Equity Solway Company is a sole proprietorship whose owner, Joe Solway, has an...

  • I need help filling out the “Q-Test Determination” as well as the “Post-Lab Questions” The directions are in the first three pictures, and the questions I need answered are in the last two pictures....

    I need help filling out the “Q-Test Determination” as well as the “Post-Lab Questions” The directions are in the first three pictures, and the questions I need answered are in the last two pictures. Thanks. O-Test Datum Rejection We may be in a situation where one data value apparently has a strong influence on the mean of a set of data Assume we have 6 data points to analyze to be sure that each point is a viable part of...

  • please complete the questions has not answering with clarification of the answer to any page Name...

    please complete the questions has not answering with clarification of the answer to any page Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...

  • I need help with following questions, but passage is above in a picture form. Thanks. Legacy/Children...

    I need help with following questions, but passage is above in a picture form. Thanks. Legacy/Children of Alumni Assignment Instructions: Read all of Chapter 9a.   Then answer questions 1-8 below in number format on the short story entitled “ONE MORE TIME” about Legacies/Children of Alumni on p. 403.    To make sure you have the correct story, it begins with “I know a lot of people who whine and complain about the children of alumni…..” 1. What’s the issue at hand...

  • I need Help with section three and for section 1 and 2 to be looked over. I think I have the write answers just needing...

    I need Help with section three and for section 1 and 2 to be looked over. I think I have the write answers just needing help. Capital Budgeting Assignment – Part 1 CAPITAL BUDGETING CASE STUDY ANALYSIS ACME Inc. is a multinational conglomerate corporation providing a wide range of goods and services to its customers. As part of its budgeting process for the next year, it has several projects under consideration so it must decide which projects should receive capital...

  • e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has...

    e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...

  • I need Summary of this Paper i dont need long summary i need What methodology they used , what is the purpose of this...

    I need Summary of this Paper i dont need long summary i need What methodology they used , what is the purpose of this paper and some conclusions and contributes of this paper. I need this for my Finishing Project so i need this ASAP please ( IN 1-2-3 HOURS PLEASE !!!) SPECIAL ARTICLES tole of Monetary Policy C Rangarajan What should be the objectives of monetary policy? Does the objective of price stability conflict with the goal of achieving...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT