Prep for Test 1

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Haley Dveirin 1E
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Prep for Test 1

Postby Haley Dveirin 1E » Tue Jan 21, 2020 10:08 pm

Do we need to memorize any Ka or Kb values for Test 1?

Hiba Alnajjar_2C
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Re: Prep for Test 1

Postby Hiba Alnajjar_2C » Tue Jan 21, 2020 10:34 pm

No, we do not need to memorize any Ka or Kb values. You should be able to interpret them and/or calculate them though.

alex_4l
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Re: Prep for Test 1

Postby alex_4l » Tue Jan 21, 2020 11:07 pm

You shouldn't have to memorize any values for Ka and Kb, just understand how to work out the formula for each and that Kw=Ka x Kb and Kw=10^-14

Tiffany Chao 2H
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Re: Prep for Test 1

Postby Tiffany Chao 2H » Tue Jan 21, 2020 11:21 pm

Nope just be careful that you use Ka for acids and Kb for bases.

AniP_2D
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Re: Prep for Test 1

Postby AniP_2D » Wed Jan 22, 2020 4:11 pm

No there are no specific values that you need to memorize. A helpful thing to know however, for the test is how to go from Ka to Kb and how to find the pH and pOH given the values of Ka or Kb.

Mariah
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Re: Prep for Test 1

Postby Mariah » Wed Jan 22, 2020 4:12 pm

No all constants are given, just know how to use them.

Vivianvelazquez_1J
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Re: Prep for Test 1

Postby Vivianvelazquez_1J » Wed Jan 22, 2020 6:20 pm

No, you do not have to memorize any Ka or Kb values because they are not constants. you should know that Ka x Kb = Kw. You should also know how to find Ka when you have Kb or vice versa. You should be able to find the pH and pOH when given the values for Ka or Kb.

Maya Beal Dis 1D
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Re: Prep for Test 1

Postby Maya Beal Dis 1D » Thu Jan 23, 2020 8:59 am

You should also know how to convert between pKa, Ka, pKb, and Kb.

AysiaB1I
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Re: Prep for Test 1

Postby AysiaB1I » Thu Jan 23, 2020 9:16 am

No I think that the values will be given, but we should be able to interpret and apply these values :)

JohannaPerezH2F
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Re: Prep for Test 1

Postby JohannaPerezH2F » Thu Jan 23, 2020 9:18 am

the values will be given, we just need to know how to interpret and apply

Celena Kim 2I
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Re: Prep for Test 1

Postby Celena Kim 2I » Thu Jan 23, 2020 4:21 pm

No, Kb and Ka values will usually be given somehow; you just need to know how to solve for that value if you happen to be given pKa or pKb instead.

Connor Chappell 2B
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Re: Prep for Test 1

Postby Connor Chappell 2B » Thu Jan 23, 2020 4:23 pm

No, Ka and Kb values will be provided. It may be wise however, to be comfortable writing out chemical equations for the dissociation of acids and bases in water.

Ipsita Srinivas 1K
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Re: Prep for Test 1

Postby Ipsita Srinivas 1K » Thu Jan 23, 2020 4:32 pm

Does anyone know if we'll be given a periodic table or are we supposed to know some common mass values?? I'm assuming we will be expected to know molar conversions and stuff like that

Madelyn Romberg 1H
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Re: Prep for Test 1

Postby Madelyn Romberg 1H » Thu Jan 23, 2020 6:26 pm

You need to know how to calculate and convert between the two, but memorizing values is unnecessary.

Jocelyn Thorp 1A
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Re: Prep for Test 1

Postby Jocelyn Thorp 1A » Fri Jan 24, 2020 1:40 pm

no need to memorize, only convert between and analyze

Elizabeth Harty 1A
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Re: Prep for Test 1

Postby Elizabeth Harty 1A » Fri Jan 24, 2020 1:41 pm

You don't need to memorize but should know the differences and converting.

MTanikella_1K
Posts: 110
Joined: Sat Jul 20, 2019 12:16 am

Re: Prep for Test 1

Postby MTanikella_1K » Fri Jan 24, 2020 2:40 pm

You don’t need to memorize specific values but it will be very helpful to know common equations we have gone over in class!


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