introduction to chemistry 5th edition by rich baue
introduction to chemistry 5th edition
Connected book
Book Title:
Author(s):
Edition:
ISBN:
Edition:
More summaries for
Introduction to Chemistry 5th Edition By Rich Bauer 9781259911149 Chapter 1- 17 Complete Guide .
All for this textbook (2)
Written for
Introduction to Chemistry 5th Edition By Rich Baue
All documents for this subject (4)
Seller
Follow
phinta004
Reviews received
Content preview
Test Bank For Introduction to Chemistry 5th Edition By Rich
Bauer 9781259911149 Chapter 1- 17 Complete Guide .
what is the relative mass of an electron - ANSWER: 1/1836
what is the use of neutrons - ANSWER: hold nucleus together despite electrostatic repulsion between
charged protons
What is an isotope? - ANSWER: Same number of protons, different number of neutrons
same element
different mass number
how do different isotopes react - ANSWER: they don't as electrons are same
what is an example of an isotope - ANSWER: 1h 2h
what is an ion
positive and negative - ANSWER: positive is cation
negative is anion
how do chemists calculate mass of atoms if some mass is lost to hold the nucleus together - ANSWER:
standard isotope needed to base all atomic masses on c-12
mass of c-12 is 12 atomic units
standard mass for atomic mass is 1u so the mass of 1/12tj mass of c-12
1uis mass of proton or neutron
what is relative isotopic mass - ANSWER: mass of an isotope relative to 12th of the mass of an atom of
c-12
what is relative atomic mass - ANSWER: weighted mean mass of an atoms of an element relative to
1/12th mass of an. atom of c-12
what does weighted mean take account of - ANSWER: percentage abundance of each isotope
real-time isotopic mass
how do u find percentage abundance of isotope - ANSWER: ms
what is the basic principles of ms - ANSWER: 1. vapourise
2. fire electrons to form 1+ ions
3. accelerate througuh magnetic field
4. bend and move at different speeds
5. detected on M/Z ration
what is the m/z - ANSWER: relative mass of ion / relative charge of ion
what does m/z show form a 1+ ion - ANSWER: relative isotopic mass
where does m/z go on mass spec graph and what is on other axis - ANSWER: m/z on X axis
other axis is percentage abundance
what is the ionic charge of zn and ag - ANSWER: zn2+
, ag+
what is a binary compound - ANSWER: two elements only
what is a polyatomic ion - ANSWER: ion with atoms of more than 1 element bonded together e..g oh-
what is the charge of carbonate - ANSWER: 2-
what is the charge of nitrate - ANSWER: -1
what is the charge of sulfate - ANSWER: 2-
what is a diatomic molecules - ANSWER: two atoms bonded together e.g.cl2
what quantity is used to measure the number of particles in a substance ( unit molr) - ANSWER:
amount of substance
one mole = - ANSWER: amount of substance that contains 6.022 x 10^23 particles
What is Avogadro's number? - ANSWER: 6.02 x 10^23 the number of particles in each mole of c-12
how many atoms does 12g of carbon 12 contain - ANSWER: 6.02x10^23
what is the mass of one mole of an element - ANSWER: it's ram in g
what is molecular formula - ANSWER: number of atoms of each element in a molecule
what is empirical formula - ANSWER: simplest whole number ratio of atoms of each element in each
compound
what structures are giant crystalline - ANSWER: all ionic compound
what is relative molecular mass - ANSWER: mass of a molecule compared with the mass of an atom of
carbon 12(simple molecular)
what is relative formula mass - ANSWER: mass of a formula unit compared with the mass of carbon
12( not simple molecular)
analysis definition - ANSWER: investigating the chemical composition of a substance
what is hydrated salt - ANSWER: water molecules apart of crystalline structure
what is water of crystallisation - ANSWER: the water molecules which are apart of a hydrated salts
crystalline structure
what is anhydros - ANSWER: no water
what is an example of water of crystallisation to anyhydrous - ANSWER: blue crystal hydrates copper
sulfate heater to form white copper sulfate
what is the procedure for calc the formula of a hydrated salt - ANSWER: weigh empty crucible
add hydrated salt e.g. coppersulfate - weigh both
use pipe clay triange to support crucible on a tripod
hest crucible gently =1 min , strong = 3 min
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller phinta004. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
