A student placed 15.5 g g
of glucose (C6H12O6
C
6
H
12
O
6
) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL
m
L
mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 50.0 mL
m
L
sample of this glucose solution was diluted to 0.500 L
L
. How many grams of glucose are in 100. mL
m
L
of the final solution?

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

Can someone me with 3 and 4 plz. this is for masteries test.

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?