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Chemistry
The molarity of a solution having 18 g of glucose (mol w.t. = 180) dissolved in 500 g of water is:
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Q. The molarity of a solution having 18 g of glucose (mol w.t. = 180) dissolved in 500 g of water is:
JIPMER
JIPMER 2001
Solutions
A
2.2 M
B
0.2 M
C
0.5 M
D
0.1 M
Solution:
Molarity of glucose solution $ =\frac{\text{weight}\,\text{of}\,\text{glucose}}{\text{molecular}\,\text{weight}\,\text{of}\,\text{glucose}}\times volume\,(in\,litre) $ $ =\frac{18}{180\times \frac{500}{1000}}=0.2\,M $