What will be the molarity of …
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Meghna Thapar 5 years, 6 months ago
The molarity is calculating the moles of solute per volume of solution that is taken in litre. It has to analyse with moles of NaCl is equal to 5.85/58.5=0.1.
Molarity varies with temperature and so we have to specify this for the answer to be accurate. Let’s go with 20˚C. Also molarity is specified per litre of the solution and so we’ll need to work out the solution volume at 20˚C.
Now the atomic masses of Sodium and Chlorine are 22.99 and 35.45 respectively, so the molecular mass of NaCl is 58.44g. With 5.85g of NaCl we therefore have:
5.8558.44=0.1001 mol5.8558.44=0.1001 mol
Meanwhile 200ml of water has a mass of 200g and so the mass of the solution is 5.85+200=205.85g.
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