Chemistry And Calculations - Education

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Chemistry And Calculations by chemK(op): 8:10pm On May 07, 2018

Can somebody give me the correct answer this question?
Calculate the atomic mass of titanium on the basis of the following percentage composition and isotopic mass data for the naturally occurring isotopes.
titanium-46 = 7.93% (45.95263 amu)
titanium-47 = 7.28% (46.9518 amu)
titanium-48 = 73.94% (47.94795 amu)
titanium-49 = 5.51% (48.94787 amu)
titanium-50 = 5.34% (49.9448 amu)

Re: Chemistry And Calculations by DrAuthentic: 8:16pm On May 07, 2018

4794.05 gramms

Re: Chemistry And Calculations by chemK(op): 12:58pm On May 08, 2018

wrong answer

Re: Chemistry And Calculations by chemK(op): 1:02pm On May 08, 2018

To succeed in solving chemistry calculations you need two things. The first is an understanding of the chemistry involved. The second is some facility in simple calculations. Numerical problems give you some data and ask you to obtain some numerical values. The connection between the data you are given and the information you asked to calculate is a chemical relationship.

Re: Chemistry And Calculations by chemK(op): 1:24pm On May 08, 2018

let' go again:
Which of the following sets of quantum numbers are not possible?
(i) n = 3, l = 2, m = 0, s = − ½
(ii) n = 3, l = 2, m = −2, s = −1/2
(iii) n = 3, l = 3, m = −3, s = +1/2
(iv) n = 3, l =1, m = 0, s = +1/2

Re: Chemistry And Calculations by Adebunmiemmy(m): 2:18pm On May 08, 2018

chemK:
let' go again: Which of the following sets of quantum numbers are not possible? (i) n = 3, l = 2, m = 0, s = − ½ (ii) n = 3, l = 2, m = −2, s = −1/2 (iii) n = 3, l = 3, m = −3, s = +1/2 (iv) n = 3, l =1, m = 0, s = +1/2

(iii)

Re: Chemistry And Calculations by Bigboy289(m): 3:08pm On May 08, 2018

chemK:
Can somebody give me the correct answer this question?
Calculate the atomic mass of titanium on the basis of the following percentage composition and isotopic mass data for the naturally occurring isotopes.
titanium-46 = 7.93% (45.95263 amu)
titanium-47 = 7.28% (46.9518 amu)
titanium-48 = 73.94% (47.94795 amu)
titanium-49 = 5.51% (48.94787 amu)
titanium-50 = 5.34% (49.9448 amu)

47.9305 amu

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Re: Chemistry And Calculations by Bigboy289(m): 3:14pm On May 08, 2018

chemK:
let' go again: Which of the following sets of quantum numbers are not possible? (i) n = 3, l = 2, m = 0, s = − ½ (ii) n = 3, l = 2, m = −2, s = −1/2 (iii) n = 3, l = 3, m = −3, s = +1/2 (iv) n = 3, l =1, m = 0, s = +1/2

(ii) & (iii)

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Re: Chemistry And Calculations by chemK(op): 8:24pm On May 08, 2018

Bigboy292 (ii) is actually possible. (ii) n = 3, l = 2, m = −2, s = −1/2
when n=3, l can be = 0,1 or 2, m can be -2,-1,0,1,2, s can be -1/2 or +1/2

Re: Chemistry And Calculations by chemK(op): 9:12pm On May 08, 2018

calculations in chemistry can be made simple and easy with this book:

1 Reply

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