AP Chem Master Review

A ______ _________ is a device used to separate an element into different isotopes.

(a)  

A mass spectrometer is used to determine _________ __________.

(a)  

Explain how a mass spectrometer works:

High-energy __________ bombard a sample, which ______________ the atoms by ejecting _________. An ___________ field is used to separate the _____ based on their _________ to charge ratio (m/z), and the number of atoms at each m/z value is compiled into a ________ ____________. (7 terms)

(a)  

Answer explanation

Explain how a mass spectrometer works:

High-energy electrons bombard a sample, which ionizes the atoms by ejecting electrons. An electric field is used to separate the ions based on their mass to charge ratio (m/z), and the number of atoms at each m/z value is compiled into a mass spectrum. (7 terms)

electrons, ionizes, electrons, electric, ions, mass, mass spectrum

In a mass spectrometer, __________ isotopes are deflected by more ___________, heavier ____________ experience _____ deflection. The abundance of isotopic deflection is then recorded & displayed on a graph. (4 words)

(a)  

Answer explanation

In a mass spectrometer, lighter isotopes are deflected by more electrons, heavier isotopes experience less deflection. The abundance of isotopic deflection is then recorded & displayed on a graph. (4 words)

lighter, electrons, isotopes, less

Fill A & B

(a)  

Tags

NGSS.MS-PS1-1

Fill C & D

(a)  

Tags

NGSS.MS-PS1-1

Fill E & F

(a)  

Mass percentage formula

A / B * 100, whats A and B?

(a)  

Answer explanation

mass of substance/total mass of mixture

The Law of Definite Composition states that ______________always contain the same relative ______ of constituents, regardless of source.

This means that ___________ in a chemical formula are always the same.

(a)  

Answer explanation

The Law of Definite Composition states that compounds always contain the same relative mass of constituents, regardless of source.

This means that subscripts in a chemical formula are always the same.

compounds, mass, subscripts

(a)   formula: subscripts show exact number of atoms bonded

Tags

NGSS.MS-PS1-1