Objętość przygotowanych roztworów w cm3 i stężenia reagentów |
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Objętość roztworów w cm3 |
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Cylinder A ( VA ) |
Cylinder B ( VB ) |
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Skrobia 0,2% |
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10 |
---- |
3 |
--- |
5 |
2 |
do 27 cm3 |
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27 |
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Stężenia reagentów w mol∙dm-3 |
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Skrobia 0,2% |
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0,2 |
--- |
0,2 |
--- |
0,05 |
--- |
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0,0741 |
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0,0222 |
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0,0093 |
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<--- po rozcieńczeniu w 27 cm3 |
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Pomiary i obliczenia |
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Nr |
m ( masa dodanego KNO3 ) [g] |
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czas (t) [s] |
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Masa molowa KNO3 |
Objętość roztworu [dm3] |
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1 |
0,00000 |
0 |
0,2722 |
162 |
2,1926 |
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0,3842 |
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101,1 |
0,037 |
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2 |
0,20160 |
0,0539 |
0,3261 |
113 |
2,0328 |
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0,4098 |
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3 |
0,40210 |
0,1075 |
0,3797 |
100 |
1,9764 |
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0,4321 |
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4 |
0,61960 |
0,1656 |
0,4379 |
85 |
1,9022 |
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0,4536 |
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5 |
0,85025 |
0,2273 |
0,4995 |
79 |
1,8666 |
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0,4740 |
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6 |
0,98290 |
0,2628 |
0,5350 |
69 |
1,8056 |
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0,4847 |
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7 |
1,41240 |
0,3776 |
0,6498 |
61 |
1,7449 |
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0,5158 |
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8 |
1,88285 |
0,5033 |
0,7756 |
47 |
1,6239 |
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0,5448 |
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9 |
2,29770 |
0,6142 |
0,8865 |
38 |
1,5246 |
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0,5671 |
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Srednia |
83,7778 |
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a |
-3,3455 |
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b |
3,438 |
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WYNIKI |
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0,006756756756757 |
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2741,57417192788 |
2,46455369544329E-06 |
3,3455 |
0,0119 |
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2,46455369544329E-06 |
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