Select the correct answer.
a mixture consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (c6h1206)
and the total mass of the mixture is 276 grams?

% composition of glucose =  85 %

Explanation:

Given Data

moles of glucose (C₆H₁₂O₆) = 1.3 mole

Total mass of mixture = 276 g

percent composition of glucose (C₆H₁₂O₆) = ?

Solution

Number of moles are given so we find out the mass of C₆H₁₂O₆

mass = moles × molar mass

Molar mass of glucose = 180.156 g/mol

mass = 1.3 mol × 180.156 g/mol

mass = 234.2 g

Now we find out the percent composition of glucose

% composition =  (mass of compound ÷ mass of mixture) × 100

% composition =  ( 234.2 g ÷ 276 g) × 100

% composition =  0.85 × 100

% composition =  85 %

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.