Hey there!
Molar mass NaCl = 58.44 g/mol
58.44 g ----------------- 22.4 ( at STP )
3.2 g -------------------- Volume ??
Volume = ( 3.2 x 22.4 ) / 58.44
Volume = 71.68 / 58.44
Volume = 1.226 L
Hope this helps!
<span>These are the rules of the quantum numbers that you have to use to dilucidate the validity of a set of quantum numbers:
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<span>1) Main quantum number, n: 1, 2, 3, 4, 5, 6, 7
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2) Second quantum number, ℓ: 0, 1, 2, ... n-1
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<span>3) Third quantum number (magnetic quantum number), mℓ: -l,...0,,,,+l
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<span>4) Fourth quantum number (spin): ms: +1/2 or -1/2
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Answers:
<span>i) 3,2,0,1/2: valid, because 0<= l < n; - l <= ml <= +l; and ms = +1/2 or -1/2
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</span><span>ii) 2,2,-1, 1/2 invalid because l = n (violates second rule)</span><span /><span>
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</span><span>iii) 4,3,-4,1/2 invalid because ml is less than - l (violates third rule)</span><span /><span>
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</span><span>iv) 1,0,0,1/2 valid: meet the four rules</span><span /><span>
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</span><span>v) 2,2,1,-1/2 invalid because l = n (violate the second rule)</span><span /><span>
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</span><span>vi) 3,2,1,1 invalid because ms can be only +1/2 or -1/2 (fourth rule)
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<span /><span /><span>vii) 0,1,1,-1/2 invalid because l > n (violates rule 2)
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<span /><span /><span>viii) 3,3,1,1/2 invalid because l = n (violate rule 2)
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<span /><span /><span>ix) 2,-2,-2,-1/2 invalid because l is negative (violates rule 2)
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x)<span> 3,2,2,1/2 valid: meet the four rules</span>
xi)<span> 4,2,1,1/2 valid: meet the four rules</span>
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</span><span>xii) 2,1,-1,-1/2 valid meet the four rules</span>
Density is therefore called an intensive property of matter. Mass<span> is the amount of matter contained in an object and is commonly measured in units of </span>grams<span>(g). </span>Volume<span> is the amount of space taken up by a quantity of matter and is commonly expressed in</span>cubic centimeters<span> (cm</span>3<span>) or in </span>milliliters<span> (ml) (1cm</span>3<span> = 1 ml).</span>
Noble gases belong to group 18 of the periodic table. These elements are inert because they have their valence orbital shells as ‘full’ hence do not participate in reactions since they cannot share electrons. These elements have a pattern in their electron configuration. Their outer most orbital shells has 8 electrons (with the exception of 2 for helium).