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Chemistry HW 12/5/11 - Moles, Molecules and Grams

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Chemistry HW 12/5/11 - Moles, Molecules and Grams

Post by Alison on Mon Dec 05, 2011 9:50 pm

I don't understand how to convert from molecs to moles, plz help. I mean, I don't even get where to start. Please help

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Re: Chemistry HW 12/5/11 - Moles, Molecules and Grams

Post by Link on Mon Dec 05, 2011 9:54 pm

Molecules/ Adgrovons (whatever is his name)'s # equals the amount of moles.
Moles x Formula Mass equals the grams.

So, for H2SO4
How many grams are there in 7.5 x 1023 of H2SO4?

H2SO4 has 98.078g/mol
7.5 x 1023/ (6.0221367 x 1023) equals 1.2 moles
1.2 moles x 98.078 grams; 117.6936 grams in 7.5 x 1023 molecules of H2SO4




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Re: Chemistry HW 12/5/11 - Moles, Molecules and Grams

Post by Saria on Sat Dec 10, 2011 11:18 pm

Avogadro*

That's a great way of putting it, I could show you the density formula as well so as to make it even easier!

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Re: Chemistry HW 12/5/11 - Moles, Molecules and Grams

Post by Link on Mon Dec 12, 2011 12:24 am

D equals M/V.

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Re: Chemistry HW 12/5/11 - Moles, Molecules and Grams

Post by Link on Wed Dec 21, 2011 9:42 pm

Tauhid has three aspects:
Oneness of the Lordship of Allah;
Tauhid-ar-Rububiyyah: To believe that there is only one Lord for all the
universe and He is its Creator, Organizer, Planner, Sustainer and the
Giver of security and that is Allah Alone.

Oneness of the worship of Allah; Tauhid-al-Uluhiyyah (Ibadah): To believe that none has the right to be worshipped but Allah.

Oneness
of the Names and Attributes of Allah: Tauhid-al-Asma was-Sifat: To
believe that we must not name or quality Allah except with what He or
His Messenger (Sallahu Alaihi Was-Salam) has named or qualified Him;
None can be named or qualified with the Names or Qualifications of
Allah; we must believe in all the Qualities of Allah which Allah has
stated in His Book (the Qur'an) or mentioned through His Messenger
(Muhammad SAW) without changing their meaning or ignoring them
completely or twisting the meanings or likening them (giving
resemblance) to any of the created things e.g. Allah is present over His
Throne as mentioned in the Qur'an (V.20:5)

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Re: Chemistry HW 12/5/11 - Moles, Molecules and Grams

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