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What is the percent by mass of a solution of 25.5 gm of NaCl dissolved n 425 ml?
Wiki User
∙ 13y ago
I assume you mean ml of water. 1ml of water=1gm of water. So you have 25.5gm divided by 425 gm to get the proportion. Multiply this by 100 to get the precent. I feel like I'm answering your homework for if I go on but.....the equation is like this
25.5g / 425g = 0.06 (no units because you divided grams by grams so the grams cancel out)
Then,
0.06 * 100% = 6% (now there are units because you multiplied a no-unit by a
percent)
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoVolume %= {weight of solute (g)/ volume of solution (mL)} x 100 weight of solute: 0.43g volume of solution: 25mL %= (0.43/25)x100 %= 1.72 (proper # sig figs) =1.7% concentration by volume
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What is the percent of mass of 4.35 gm of NaCl dissolved in 105.0 gm of water.?
Total mass = 4.35 g + 105.0 g = 109.35 g% by mass of NaCl = 4.35/109.35 (x100%) = 3.98% (3 significant figures)
Does the Mass mass percent concentration measures grams of solute per grams of solvent?
No, not exactly.Mass mass percent concentration measures grams of solute per 100 grams of solution (= solvent + solute)Example:58.5 g NaCl (solute) added to941.5 g H2O (solvent) gives you1000.0 g solution of 5.85% NaCl (= 100%*58.5/1000.0),which is about a 1.0 mol/L NaCl solution.
A 20.0-g sample of sugar is dissolved in 59.8 g of water. What is the concentration of the solution?
25 percent by mass
What is the mass percent of the solution. if An aqueous NaCl solution is made using 138 g of NaCl diluted to a total solution volume of 1.10 L Assume a density of 1.08 g per ml for the solution.?
138 g NaCl 1.10 L= 1100mL 1100mL x 1.08g/mL = 1188 grams TOTAL 138/1188 x 100 = 11.6%
How is the mass compound determined from the number of moles?
Multiply the number of moles times the molar mass of the compound. Moles cancel and you are left with mass in grams.For example: What is the mass of 2.47 moles of sodium chloride, NaCl?Known: The molar mass of NaCl is 58.44g/mol. (Using atomic weights in grams from the periodic table.)Solution:2.47mol NaCl x 58.44g/mol NaCl = 144g NaCl
What is the percent by mass of NaCl in a solution containing 20g of NaCl dissolved in 600g of H2O?
9%
What is the mass percent of NaCl when 6.5g of NaCl dissolves with 250g of water?
This concentration of NaCl is 2,6 g NaCl/100 mL solution.
How do you calculate for the mole of a solution?
number of moles is mass divided by molecular mass. the molecular mass of NaCl is 58.44g/mol. therefore you need 58.44g to make one mole
What mass of water must be added to 255.0g NaCl to make a 15.00 percent by mass aqueous solution?
Wws7mnMewPw
What mass of NaCl is needed to make 414 g of a 3.06 percent NaCl solution?
If your solution is a total of 414g and 3.06% of it needs to be NaCl, then you just take 414 x .0306 = grams of NaCl. The rest of the grams will be from other species in the solution.
What is the percent by mass of naHco3 in a solution of 40.0g naHco dissolved in 800.0ml of h2o?
First of all, you need to know the density of the water. The density can be calculated by 1g/ml. Then the mass of H2O can be calculated by DXV=1x800. Then the total mass of the solution is the mass of solvent plus mass of solute. The percentage is 4.76 for this solution.
What is the percent of mass of 4.35 gm of NaCl dissolved in 105.0 gm of water.?
Total mass = 4.35 g + 105.0 g = 109.35 g% by mass of NaCl = 4.35/109.35 (x100%) = 3.98% (3 significant figures)
How do you calculate the percent by mass of 4.35g of NaCl dissolved in 105 g of water?
% by mass is the mass of the solute divide by the total mass of solution times 100%. Or put another way, % by mass = mass solute/total mass of soln (x100%).Mass solute = 4.35 gMass of solution = 4.35 g + 105 g = 109.35 g (assuming a density of 1g/ml for water)% NaCl by mass = 4.35 g/109.35 g (x100%) = 3.98 % (to 3 significant figures)
Does the Mass mass percent concentration measures grams of solute per grams of solvent?
No, not exactly.Mass mass percent concentration measures grams of solute per 100 grams of solution (= solvent + solute)Example:58.5 g NaCl (solute) added to941.5 g H2O (solvent) gives you1000.0 g solution of 5.85% NaCl (= 100%*58.5/1000.0),which is about a 1.0 mol/L NaCl solution.
What is the percent by mass of the solute sodium hypochlorite is 5.24 percent you have a 2500.0 grams of bleach solution. How many grams of NaCl are in the solution?
The mass of sodium hypochlorite in 2,5 kg solution is 131,25 g.Sodium chloride is only the product of a decomposition.
A 20.0-g sample of sugar is dissolved in 59.8 g of water. What is the concentration of the solution?
25 percent by mass
If you have 1000 gram of a 10 -percent solution of sugar water how much sugar is dissolved in the solution?
The mass of sugar is 100 g.
