Answer:
A) Molecular weight
B) Rate of diffusion
C) Agar plates
Time of diffusion
Explanation:
A) The independent variable is the molecular weight because it is the variable that the researcher changes at will to aid his research. It doesn't depend on other variables.
B) The dependent variable is "Rate of diffusion because it depends on the molecular weight of the compound.
C) A control variable is one that would be held constant throughout the research.
In this case, the agar plates and the time of 2 hours diffusion remain the same throughout.
All of these are possible explanations for an acid, based upon the definition or principle of how you are looking and or viewing an acid as, an Arhennius acid, A Bronsted Lowry acid, or a Lewis acid.
Answer:
35.8 grams
Explanation:
Multiply the density of ethyl alcohol by the volume because this will cause the units of mL to cancel out leaving you with the grams, or mass.
1.79 x 20 = 35.8
