If you knew the number of valence electrons in a nonmetal atom, how would you determine the valence of the element?

The osmotic pressure of a solution containing 22.7 mg of an unknown protein in 50.0 mL of solution is 2.88 mmHg at 25 C. Determine the molar mass of the protein.

A device that transforms chemical energy to electrical energy, and provides electrical force in a current.

A salt consists of a. two or more cations only b. two or more anions only c. an anion from an acid and a cation from a base c. none of the above

Does a substance that evaporates more quickly (thus having a greater δt) have a higher or lower force of attraction to other molecules in the liquid compared to a substance that evaporates more slowly (smaller δt) ? explain.

What is the y-intercept of the functipn f (x) = -2/9x+1/2?

Radiocarbon dating can be used to determine the age of A a sample less than a million years old B a sample less than 100,000 years old C a sample less than 50,000 years old - D a sample less than five million years old

How many electrons in an atom can have each of the following quantum number or sublevel designations? (a) 4p (b) n = 3, l = 1, m1 = + 1 (c) n = 5, l = 3

Could the two aqueous solutions be identified through a visual inspection? Explain.

The reaction, C2H6) (l) + 3) 2 (g) produces 2CO2 (g) + 3H2) (g), is the combustion of ethanol. What occurs as the reaction proceeds.

The Concentration of C6H12O6 May be represented as?