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Chemistry 15 Online
RhondaSommer (rhondasommer):

If you have exactly 2.00 moles each, of two different substances, then which of the following must be true about the two samples? They have the same mass. They have the same weight. They have the same number of particles. Both b and c. @Sweetburger @MissSmartiez I believe it is D

OpenStudy (rushwr):

Nop nop !

OpenStudy (rushwr):

\[moles = \frac{ mass }{ molar mass }\] So we can't exactly say if masses and molar masses are equal bu of course the number of particles are the same

OpenStudy (rushwr):

Because no. of particles in a mole is always constant no matter of the substance.

OpenStudy (rushwr):

No. of particles per mole = 6.022 8 10^23

RhondaSommer (rhondasommer):

that didnt make any sense

OpenStudy (sweetburger):

Well mass is a value that isn't bound by gravity. Weight is the mass of an object times the gravity. The mass of 2 different substances will be different. The mass x gravity of 2 different substances will also still be different. However, in 1 mole of a substance will always the same number of particles making it up.

RhondaSommer (rhondasommer):

so instead it is just c

OpenStudy (sweetburger):

Yes

OpenStudy (sweetburger):

Rip my english though geeze

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