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Calculate molality of 10gm of glucose in 90gm of water

```
3 years ago

Mohit Gupta
24 Points
```							10x1000/180x90=.61 well com.............. ......................................................... .   .....
```
3 years ago
Arun
25768 Points
```							In order to know your answer firstly know about molalityMolality may be defined as the number of moles of solute that are  dissloved in a kg of water .so firstly we have to calculate the moles of glucose10*1/180.16 = 0.0555 ( as the molar mass of glucose= 180.1559)These are dissloved in 90 g of water.first convert mass into kilogram =90/1000= 0.090 kg0.090 kg water = 0.0555 moles of glucoseso 1 kg of water=1*0.0555/0.090 = 0.6166 moles of glucoseround about of 0.6166 will be 0.617 which is our answer
```
3 years ago
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