Recent questions in Atomic Mass

+23 votes

0 answers

Is an atomic mass number a whole number?

asked Jul 20, 2022 in Atomic Mass by Ian Burnell

+4 votes

0 answers

What is relative atomic mass and why is it important?

asked Jul 20, 2022 in Atomic Mass by EchoingTwilight

+11 votes

0 answers

What is the mass of an atom O in grams?

asked Jul 19, 2022 in Atomic Mass by Phil_from_London

+7 votes

0 answers

How is the atomic mass of an element related to the molar mass of the element?

asked Jul 19, 2022 in Atomic Mass by markenglish82

+7 votes

0 answers

75% of Cl atoms have a mass number of 32, whilst the remaining 25% have a mass number of 36. What is the relative atomic mass of chlorine?

asked Jul 19, 2022 in Atomic Mass by nk

+26 votes

0 answers

Bromine has two naturally occurring isotopes. Bromine-79 with a mass of 79.904 amu and an abundance of 50.69% and Bromine-81 with a mass of 80.9163 amu and an abundance of 49.31%. What is the relative atomic mass of Bromine (using this made up data)?

asked Jul 18, 2022 in Atomic Mass by NovaOracle

+13 votes

0 answers

What are atomic mass units and why are they used to calculate molecular weights instead of actual masses in grams or kilograms?

asked Jul 18, 2022 in Atomic Mass by hibeealex

+43 votes

0 answers

In chemistry, when you are solving for average atomic mass should you wait until the very end of the whole problem to round for sig figs, round seperately for the multiplication and addition or keep track as you go and round at the end?

asked Jul 18, 2022 in Atomic Mass by fizzy2

0 votes

0 answers

Atomic numbers are in the whole number whereas atomic mass is not. Why?

asked Jul 17, 2022 in Atomic Mass by AstralAlchemy

+17 votes

0 answers

What is the difference between atomic and molecular weight when calculating formula masses for gaseous elements such as hydrogen, nitrogen and neon (using just three electrons)?

asked Jul 17, 2022 in Atomic Mass by deanomc

+315 votes

0 answers

An element of metal M from a hydride MH3 which contains 90 % of M by mass. What is the relative atomic mass of M?

asked Jul 16, 2022 in Atomic Mass by Flame

+15 votes

0 answers

Why is the relative atomic mass of carbon-12 exactly 12?

asked Jul 16, 2022 in Atomic Mass by switchtada

+4 votes

0 answers

How do you calculate the relative isotopic mass of boron-11?

asked Jul 15, 2022 in Atomic Mass by Daniel1951

+85 votes

0 answers

Can you use the terms atomic mass, relative atomic mass, atomic weight interchangeably?

asked Jul 14, 2022 in Atomic Mass by NebulaEcho

+15 votes

0 answers

Is there any correlation between increasing atomic mass & infrared absorption & emission spectrums?

asked Jul 14, 2022 in Atomic Mass by leesparkykent

+1.0k votes

0 answers

The atomic number and the mass number of sodium are 11 and 23 respectively. What information is conveyed by this statement?

asked Jul 14, 2022 in Atomic Mass by portfoliosilent

+25 votes

0 answers

How do you calculate the percent atomic by weight?

asked Jul 14, 2022 in Atomic Mass by austinparker

+122 votes

0 answers

If Oxygens atomic mass is 16… and oxygen is a diatomic molecule, does that mean oxygens atomic mass is actually 32?

asked Jul 14, 2022 in Atomic Mass by btiw

+225 votes

0 answers

Is it wrong if I define atomic mass unit as 1/16 of an oxygen atom instead of 1/12 of a carbon atom?

asked Jul 14, 2022 in Atomic Mass by Sortingitout

+3 votes

0 answers

What is an example of an element with a fixed atomic mass?

asked Jul 13, 2022 in Atomic Mass by skinny d

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