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What is the mole fraction of ethanol in a solution of 3.00 moles of ethanol and 5.00 moles of water?
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∙ 12y ago
0.375
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∙ 12y ago
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What is the mole fraction of solute in a 3.71 m aqueous solution?
molal = m = moles solute/kg solvent. Assuming water as the solvent 1 kg = 1000 g/18g/mole = 55.56 moles H2O. Moles solute = 3.71 moles. Total moles present = 55.56 + 3.71 = 59.27 moles.Mole fraction solute = 3.71/59.27 = 0.0626
Is tincture of iodine a solid?
A tincture is a solution; in this case the solvent is ethanol or water.
What is the freezing point of a solution that contains 0.550 moles of Nal in 615 g of water?
3.33 degrees Celsius is the freezing point of a solution that contains 0.550 moles of Nal in 615 g of water.
How does the entropy of the system change when equal volumes of ethanol and water are mixed to form a solution?
It increases
Is ethanol lipid soluble?
Yes. When mixed with water in a solution it forms an organic layer ontop of the aqueous (water) layer.
What is the mole fraction of ethanol in a solution of 47.5 grams of ethanol in 850 grams of water?
Unless I've completely forgotten my chemistry, mole fraction is the fraction of moles of a particular solute of the entire number of moles in the solution. So for this question: formula weight of ethanol = 46.07 g/mol formula weight of water = 18.015 g/mol moles of ethanol = 47.5g / 46.07 g/mol = 1.0310 mol moles of water = 850g / 18.015 g/mol = 47.182 mol total number of moles in the solution = 1.0310 + 47.182 = 48.213 mol therefore, the mole fraction of ethanol is 1.0310 mol / 48.213 mol = 0.0214 hope this helps.
What is the mole fraction of water in a water ethanol solution that is 57 percent water by mass?
0,98
What is the mole fraction of solute in a 3.62 m aqueous solution?
0.0613 mole fraction = moles solute/(moles solute + moles water) moles water = 1000 g / 18.02 = 55.49 3.62/(55.49 + 3.62)=0.0613
What are the mole fraction and molality of ethanol -C2H5OH in an aqueous solution that is 45.0 percent ethanol by volume-The density of water is 1.00g per mL and that of ethanol is 0.789 grams per mL?
The mole fraction and molality of ethanol -C2H5OH in an aqueous solution that is 45.0 percent ethanol by volume and the density of water is 1.00g per mL that of ethanol is 0.789 grams per mL and 70/18. A mole fraction in chemistry is the amount that is divided by the total amount of all constituents.
Is the mixture of ethanol in water a heterogeneous or homogeneous mixture?
The mixture water-ethanol is homogeneous.
Calculate the molarity of a solution of ethanol in water in which the mole fraction is 0.040 assume that the density of water to be one?
It depends a bit on what information you are given. However, the principle is the same in all cases, although how you do the specific calculation may vary a bit.As an example, let's say we have a mixture of 5.00 grams of water and 10.0 grams of ethanol (C2H5OH). What is the mole fraction of the two components?The first thing we must do is convert the number of grams of each substance into moles. To do that, see the Related Question below:How do you convert from grams to moles and also from moles to grams?For water, we have:5.00 grams ÷ 18.015 grams/mole = 0.2775 moles H2OFor ethanol, we have:10.0 grams ÷ 46.068 grams/mole = 0.2171 moles C2H5OHNow we can find the mole ratio, which is defined as follows:Moles ratio of compound X = number of moles of X ÷ total number of moles in mixtureSo the mole ratio of water is: 0.2775 ÷ (0.2775 + 0.2171) = 0.561 or 56.1%and the mole ratio of ethanol is: 0.2171 ÷ ((0.2775 + 0.2171) = 0.439 or 43.9%Check your answer! The total mole ratio for all components MUST add up to 1.00:0.561 + 0.439 = 1.00 Yes!Note that the weight ratio was 1-to-2 (twice as much ethanol as water by weight), but the mole ratio was completely different.
What is the mole fraction of solute in a 3.71 m aqueous solution?
molal = m = moles solute/kg solvent. Assuming water as the solvent 1 kg = 1000 g/18g/mole = 55.56 moles H2O. Moles solute = 3.71 moles. Total moles present = 55.56 + 3.71 = 59.27 moles.Mole fraction solute = 3.71/59.27 = 0.0626
What is the mole fraction of sulfuric acid in a solution made by adding 3.4 grams of sulfuric acid to 3500 mL of water?
The mole fraction must be calculated in moles solvent over moles solution. So, 3.4 grams sulfuric acid equals .0347 moles sulfuric acid. 3500 mL water equals 3500 g water equals 194 mols. .0347 mols/(.0347+194) = 1/5591.77 mols/mol
Is ethanol an acid or base?
Pure ethanol is slightly basic- about 7.9 However, a solution of ethanol and water is about 7,0- neutral
Is the moles of silver ions in water equal to silver nitrate solution moles?
no
10ml of ethanol mix with 40ml of water find percent concentration of ethanol solution?
20%
Is salt and ethanol a heterogenous solution before mixing?
Almost no salt will dissolve in pure ethanol. If salt is added to a solution of ethanol and water, which are miscible, it may form a homogenous solution without being stirred.
