When the number of hydrogen atoms in the solute and the solvent is equal, the mass fraction of the solute in an aqueous solution of C2H5OH is () A. 23%B. 46%C. 55%D. 72%

When the number of hydrogen atoms in the solute and the solvent is equal, the mass fraction of the solute in an aqueous solution of C2H5OH is () A. 23%B. 46%C. 55%D. 72%

According to the equal number of hydrogen atoms, the relationship between ethanol and water molecules is found out, and then the mass relationship is determined. C2H5OH ~ 6h ~ 3h2o46 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 54 the mass fraction of solute in this ethanol solution is 4646 + 54 × 100% = 46%, so B is selected

What are 75% alcohol solvents and solutes

Water is the solvent and alcohol is the solute. In theory, either of the two liquids forms a solution, which can be regarded as a solvent. But generally, a large amount of liquid is called a solvent. If one of the two liquids is water, no matter how much water is contained, water is regarded as a solvent