Topics 1.1 - 1.3

[@Y4AKl]

He covers every type of question that might come on a unit 1 test in a packet of 9 pages W Mr. Farabaugh carrying me in Pre-AP Chemistry

[@mohamedfarhat2313]

Great and helpful video sir. I will have my first chemistry unit 1 test and your videos are fenomenal!

[@chemistrymrt]

Hi Michael, The link to the packet is not working. Could you please try to fix it? Thanks in advance.

[@mrfarabaugh]

I just tried that link, and it seems to work okay for me: bit.ly/3z8RipZ

[@chemistrymrt]

@@mrfarabaugh Thank you!

[@OfficalMPSBVB]

for question 21 why wouldnt u do just 18.016 why do u need to multiply by 2 since were only trying to find H2O not 2H2O

[@mrfarabaugh]

The chemical formula of calcium chloride dihydrate is CaCl₂•2H₂O For every one mole of this substance, there are TWO moles of H₂O 2 moles of H₂O = (2)(18.016) = 36.032 g 1 mole of this substance = (40.08)+(2)(35.45)+(36.032) = 147.012 g Mass percent of H₂O in this substance = (36.032)/(147.012)x100 = 24.51%

[@zerereka]

36:47

[@gale-b5h]

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