(75)/(100+75)x100%
= 41.28% by mass
75% of 100 = 75% * 100 = 0.75 * 100 = 75
% rate = 75%= 75/100 * 100%= 75 * 1%= 75%
75 percent as a fraction = 75%/100% = 75/100 or 3/4
It Is 75/100 (75)
To find the percent of 75 out of 100 students, you divide 75 by 100 and then multiply by 100. This calculation gives you 75%. Therefore, 75 out of 100 students is 75%.
The percent of a solution is calculated by dividing the mass of the solute by the total mass of the solution, then multiplying by 100. In this case, the percent of the solution containing 2.19 g of NaCl in 75 g of the solution would be (2.19 g / 75 g) * 100 = 2.92%.
With 25ml methanol and 75ml water, there is 100ml in total. So there is 25/100 = 25% by volume methanol.
To determine the concentration of the solution, we need to calculate the total mass of the solution first. The total mass is the sum of the mass of sugar (25 g) and the mass of water (50 g), which equals 75 g. The concentration of the solution is then calculated by dividing the mass of the solute (sugar) by the total mass of the solution: (25 g / 75 g) x 100% = 33.33%. Therefore, the concentration of the solution is 33.33%.
(75'C)x(1g) < (75'C)x(100g) .'. The second option has more thermal energy.
I have read two methods to solve this up: the first says that at 75 degrees the solution mass is 100g of water + 155 g of KNO3 so its mass is 255g at 25 degrees the solution mass is 100 g of water + 38 g of KNO3 so its mass is 38 when we cool it down from 75 to 25 we will get 255-138=117g but this is the solution mass and u only want the mass of KNO3 because that is what will really crystallize...so for some reason i really dont get u do 117/255 and then multiply it by the mass of the demanded solution which is 100 g so the answer will be 45.88g nearly 45.9 g the second method is to assume that at 75 degrees there is in 100g of saturated solution, x g of water so KNO3 will be 1.55x total mass 100 x+1.55x=100 x= 39.126 1.55x=60.784 so at 25 degrees there is 0.39 x of KNO3 and x is 39.126 that means there is 0.38*39.126= 14.867 g of KNO3 therefore the mass of KNO3 that will crystallize is 60.784-14.867=45.917= 45.917 why 1.55x? because for each 100 g of water we have 155 g of solute...so 155/100 = the mass of solute for the new water mass/ the new water mass (x) so the mass of solute for the new water mass will be: 155x/100 or 1.55x! the same applies to 0.38x hope this helped =)
75% of 100 = 75% * 100 = 0.75 * 100 = 75
% rate = 75%= 75/100 * 100%= 75 * 1%= 75%
75 over 100= 75/100 in decimal= 75/100 * 100%= 75% in percent
To determine if a solution is saturated or unsaturated, we need to compare the actual solubility of the solute at the given temperature to the amount of solute dissolved in the solution. At 40 degrees Celsius, the solubility of KNO3 in water is approximately 80 g/100 g water. Since you have 110 g of KNO3 in 100 g of water, the solution is supersaturated because it contains more solute than it can normally hold at that temperature.
75% out of 100% is 75/100 or .75. In grade terms is a C.
75 percent as a fraction = 75%/100% = 75/100 or 3/4
It Is 75/100 (75)