How do you find the molarity of salt water?
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How do you find the molarity of salt water?
To get the molarity we need to divide the number of moles of NaCl by the volume of the solution. In this case that is 0.32 moles NaCl divided by 3.4 L, and that gives 0.094 M NaCl.
What is the molality of seawater?
0.620 m
Assuming that sea water is a 3.50 \% (w/w) mass aqueous solution of NaCl, what is the molality of sea water? (Ans: Molality of sea water = 0.620 m Nach.
What is the molarity of sodium?
In chemistry, the units of moles/L are called molarity, with the abbreviation M. Thus we could say that our saturated solution of sodium chloride was 6.14 molar, or 6.14 M.
What is the molarity of sodium chloride in seawater?
0.48 M
The molarity is 0.48 M NaCl.
What is meant by molarity of water?
Molarity is defined as the number of moles of the solute per litre of solution.
What is concentration of salt in seawater?
The concentration of salt in seawater (its salinity) is about 35 parts per thousand; in other words, about 3.5\% of the weight of seawater comes from the dissolved salts.
How do you find the molarity of NaCl?
One mole of sodium (Na) is 22.99 g, and 1 mole of chlorine is 35.45 g. For sodium chloride (NaCl) they are in a ratio of 1:1 so the molar mass of NaCl is 22.99 + 35.45 = 58.44 g/mol.
How do you calculate the molarity of salt in seawater?
If the salt content is 35 grams per kg of solution, that would mean there are 35.9 g of salt in each liter. With the unreasonable assumption that all 35.9 g are NaCl, we can divide by the molar mass of NaCl (58.44 g/mole) and find that the molarity of salt in seawater is about 0.61.
How do you determine the molarity of a solution?
In order to be able to determine the molarity of a solution, you basically need to know two things Your solute is sodium chloride, NaCl. You know that you’re dissolving a 280-mg sample of sodium chloride in enough water to get a 2.00-mL volume of solution.
How many moles of NaCl are there in 1 litre of water?
Therefore 1 mole of NaCl= 58.4 g Number of moles in sea water= 28/58.4= 0.479 Therefore, 1 litre of water contains 0.479 moles of NaCl Now, Molarity (M) = Number of moles of solute/ volume of solvent.
What is the molarity of 1 litre of pure water?
Now, we know that the volume of the solution is 1 L, the molarity of the solution is calculated by: Molarity=Moles of the soluteVolume of the solution=55.551=55.55 M. So the Molarity of pure water is 55.55 M. What is the molality of 1 Litre pure water?