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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?
To find the mole fraction of ethanol, you first calculate the total moles of the solution, which is 3.00 + 5.00 = 8.00 moles. Then, you divide the moles of ethanol by the total moles of the solution: 3.00 moles / 8.00 moles = 0.375. So, the mole fraction of ethanol in the solution is 0.375.
How do you prepare 0.2N Sodium chloride solution?
NaCl is the formula for Sodium Chloride, from that you can work out the gram formula mass. RAM Na = 23 RAM Cl = 35.5 gfm (NaCl) = 58.5g mol-1 assuming that you need 0.1l of NaCl m = 58.5*0.1 = 5.85g So dissolve 5.85g in water for a 0.2 mole solution
How many grams of NaCl molecular weight 58.5 g mole -1 would you dissolve in water to make a 0.5M NaCl solution with 500 ml final volume?
You would need to dissolve 14.62 grams of NaCl in water to make a 0.5M NaCl solution with a final volume of 500 ml. This calculation is based on the formula: moles = Molarity x Volume (in liters), and then converting moles to grams using the molecular weight of NaCl.
What volume of a 2.10 M NaCl solution is needed for a reaction that requires 200 g of NaCl answer in units of L?
First You have to express the 200 g NaCl as moles of NaCl. The molar mass of NaCl is 58.5 g/mole. Consequently you need 200/58.5 g/(g/mole) = 3.42 moles of NaCl.Having a 2.10 M NaCl solution You need 3.42/2.10 mole/(mole/l) = 1.63 l of the given solution.
What is the mole to mole ratio for sodium chloride?
The formula is: NaOH(aq) + HCl(aq) --> NaCl + H2O(l) So the ratio is: 1 : 1 : 1 : 1
How can we prepare 1M solution of NaCl?
You could titrate equal volumes of 1M solution of NaOH and 1M solution of HCl to obtain 1M solution of NaCl.
How do you convert mole fraction to volume fraction of liquid?
You need the balanced symbol equation for the reaction. The numbers in front of the formulae show the mole ratios. For example, in the thermal decomposition of calcium carbonate: CaCO3 --> CaO + CO2 The equation is balanced. The mole ratio between CaCO3 and CO2 is 1:1 because there is 1 mole of CaCO3 for every mole of CO2
What is the vapor pressure of a water solution in which the molefraction of HgCl2 is 0.163 at 25C?
To calculate the vapor pressure of the water solution with a mole fraction of HgCl2 of 0.163 at 25°C, you would need to use Raoult's Law. The vapor pressure of the solution would be equal to the mole fraction of water multiplied by the vapor pressure of pure water at that temperature. The vapor pressure of HgCl2 can be ignored since its mole fraction is given.
What is the mole fraction of water in a water ethanol solution that is 57 percent water by mass?
To calculate the mole fraction of water in the solution, we first need to determine the moles of water and ethanol present. Given that the solution is 57% water by mass, we can assume the remaining 43% is ethanol. From there, we can convert the mass percentages to moles using the molar masses of water and ethanol, and finally, calculate the mole fraction of water by dividing the moles of water by the total moles of the solution.
How many moles of Na plus ions are there in a moles of NaCl?
There is one mole of Na⁺ ions for every mole of NaCl. This is because each mole of NaCl dissociates into one mole of Na⁺ ions and one mole of Cl⁻ ions in solution.
What is the mole concentration of 58.44g of NaCl in 1 L of water?
Molarity = moles of solute/Liters of solutionGet moles NaCl.58.44 grams NaCl (1 mole NaCl/58.44 grams)= 1 mole NaCl------------------Molarity = 1 mole NaCl/1 liter= 1 M NaCl========
What is the relationship between mole fraction and concentration in a solution?
The mole fraction of a substance in a solution is the ratio of the number of moles of that substance to the total number of moles in the solution. Concentration, on the other hand, is the amount of a substance present in a given volume of the solution. The mole fraction and concentration are related because the mole fraction can be used to calculate the concentration of a substance in a solution.
What is the mole fraction of ethanol in a solution of 3.00 moles of ethanol and 5.00 moles of water?
To find the mole fraction of ethanol, you first calculate the total moles of the solution, which is 3.00 + 5.00 = 8.00 moles. Then, you divide the moles of ethanol by the total moles of the solution: 3.00 moles / 8.00 moles = 0.375. So, the mole fraction of ethanol in the solution is 0.375.
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 is the mole fraction of methanol in a solution that contains 6.0 mol of methanol and 3.0 mol of water?
The total moles of solute and solvent in the solution is 9.0 mol. The mole fraction of methanol would be the moles of methanol divided by the total moles. Therefore, the mole fraction of methanol in the solution is 6.0 mol / 9.0 mol = 0.67.
How can one determine the mole fraction from vapor pressure?
To determine the mole fraction from vapor pressure, you can use Raoult's Law. This law states that the vapor pressure of a solution is directly proportional to the mole fraction of the solvent in the solution. By measuring the vapor pressure of the solution and knowing the vapor pressure of the pure solvent, you can calculate the mole fraction of the solvent in the solution using the formula: Mole fraction of solvent Vapor pressure of solution / Vapor pressure of pure solvent
How many mL of a 0.420M NaCl solution should be measured out to provide 1.5g NaCl?
1.5g NaCl x (1 mole / 58.5 g NaCl) x (1000 ml / 0.42 mole) = 61.05 ml
