The image above shows what happens when hydrochloric acid (HCl) and sodium hydroxide (NaOH) are mixed with water. Which statemen
t below is true about both solutions?
A. Both solutions contain solutes that do not dissolve completely in water.
B. Both solutions are saturated because they contain the maximum concentration of a solute dissolved in the solvent.
C. Both solutions will conduct an electric current because they both contain ions that can carry a charge.
D. Both solutions are acidic because they both contain hydrogen.
A. Both solutions contain solutes that do not dissolve completely in water.
B. Both solutions are saturated because they contain the maximum concentration of a solute dissolved in the solvent.
C. Both solutions will conduct an electric current because they both contain ions that can carry a charge.
D. Both solutions are acidic because they both contain hydrogen.
1 answer:
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3.37 x 10¹⁰ molecules
Explanation:
Given parameters:
Volume of water = 1pL = 1 x 10⁻¹²L
Density of water = 1.00g/mL = 1000g/L
Unknown:
Number of water molecules = ?
Solution:
To solve this problem, we first find the mass of the water molecule in the inkjet.
Mass of water = density of water x volume of water
Then, the number of molecules can be determined using the expression below:
number of moles =
Number of molecules = number of moles x 6.02 x 10²³
Solving:
Mass of water = 1 x 10⁻¹² x 1000 = 1 x 10⁻⁹g
Number of moles:
Molar mass of H₂O = 2 + 16 = 18g/mol
Number of moles = = 5.6 x 10⁻¹⁴moles
Number of molecules = 5.6 x 10⁻¹⁴ x 6.02 x 10²³ = 33.7 x 10⁹
= 3.37 x 10¹⁰ molecules
Learn more:
Number of molecules brainly.com/question/4597791
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