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Chemistry 9 Online
Mathplayer223:

chemistry help please

Mathplayer223:

Mathplayer223:

@vocaloid

Vocaloid:

To go from grams to moles, divide by molar mass So divide 3.5g tungsten by the molar mass of tungsten

Mathplayer223:

is the molar mass the atomic weight? @vocaloid

Vocaloid:

for individual atoms like Tungsten, basically yeah just look at a periodic table to find tungsten (W)

Mathplayer223:

is the answer 0.0190

Vocaloid:

almost 3.5 only has 2 sig figs ---> round to 0.019 only

Mathplayer223:

thanks

Mathplayer223:

it was wrong

Mathplayer223:

oops nevermind

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