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Mass solution=100g
Mass solution=20g Mass
Mass % = (mass Of solute/mass Of solution ) x 100.
=(20/100)x100
=1/5 x 100.
=100/5
=20%
What else can I help you with?
How can one determine the molality of a solution using the mass percent of the solute?
To determine the molality of a solution using the mass percent of the solute, you need to first convert the mass percent to grams of solute per 100 grams of solution. Then, calculate the moles of solute using its molar mass. Finally, divide the moles of solute by the mass of the solvent in kilograms to find the molality of the solution.
A solution contains 30 g of calcium chloride in 250 g of water express the mass percent?
The solution has a total mass of 30 + 250 = 380 g. The mass percent of calcium chloride in this solution is 100(30/380) = 7.9 %, to the justified number of significant digits.
Mass percent of sol of benzene in toulene when mole fraction of benzene is 0.40?
To calculate the mass percent of benzene in the solution, we first need to convert the mole fraction of benzene to mass fraction using the molecular weights of benzene and toluene. Then, we can use the formula: Mass percent = (mass fraction of benzene / total mass of solution) x 100 Given the mole fraction of benzene as 0.40, we can use this information to determine the mass fraction and then calculate the mass percent of benzene in the solution.
Determine how much of each of the following NaCl solutions in grams contains 1.5g of NaCl 0.058 percent NaCl by mass?
In order to determine this, it is necessary to know what solution we are looking at. One we know that we can look at the grams in a mole of the substance and determine the percentages based on molecular weight.
What is the percent of a water solution that contains 60 g of calcium chloride and that has a mass of 400 g?
The percent of a solution is calculated by dividing the mass of the solute by the mass of the solution and multiplying by 100. In this case, the percent of the water solution containing 60 g of calcium chloride in a 400 g solution would be (60 g / 400 g) * 100 = 15%.
How can you determine molarity from percent purity of solution?
Molarity is the no of moles of solute dissolved per litre of a solution. now if u want to find it from the percentage purity , here is the formula for that Molarity = % purity x density x 10 ___________________ molar weight of the solute note : density is usually given %purity problems, if its not u can evualvate it from from formula { d= mass/volume} i hope it solves the problem
A sugar solution of 35.8g sugar and 125.35g of water. what is the percent by mass of the sugar and the percent by mass of the water in the solution?
add 35.8g sugar to 125.35g of water this = 100% of the solution. then divide 35.8g of sugar by the whole solution and multiply by 100 to get the percentage (35.8)/ (125.35 + 35.8)= .222 * 100= 22.2% sugar is 22.2% of the solution. Do the same for the water switch 35.8 by 125.35
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 information would you need in order to convert molarity to percent by volume?
To convert molarity to percent by volume, you would need to know the molar mass of the solute and the density of the solution. With these values, you can calculate the volume of the solute in a given volume of the solution to determine the percent by volume.
A solution contains 11 by mass of sodium chloride This means that?
100 g of the solution contains 11 g of sodium chloride
What mass of solution would result if 81g of glucose(C6H12O6) is added to enough water to make a solution of 15.0 percent by mass?
To determine the mass of the solution, we need to calculate the total mass of the solution when 81g of glucose is added. Since the solution is 15.0% glucose by mass, the remaining 85.0% is water. Therefore, the total mass of the solution can be calculated using the mass of glucose added and the percentage of water. This would result in a total mass of solution greater than 81g due to the addition of water to dissolve the glucose.
What is the formula of percent by volume and mass?
The formula for percent by volume (% v/v) is: (Volume of solute / Volume of solution) x 100 The formula for percent by mass (% w/w) is: (Mass of solute / Mass of solution) x 100
