15.0 mL of .275 M sulfuric acid solution "completely neutralizes" 20.0 mL of sodium hydroxide solution. What is the concentration of the sodium hydroxide solution

The answer to your question is  0.415 M

Explanation:

Data

volume of H₂SO₄ = 15 ml

[H₂SO₄] = 0.275

volume of NaOH = 20 ml

[NaOH] = ?

Process

1.- Write the balanced chemical reaction

                    H₂SO₄  + 2NaOH   ⇒   Na₂SO₄  +  2H₂O

2.- Calculate the molar mass of H₂SO₄ and the molar mass of NaOH

molar mass of H₂SO₄ = 2 + 32 + (16 x 4) = 98g

molar mass of NaOH = 23 + 16 + 1 = 40 g

3.- Calculate the moles of H₂SO₄ in 15 ml

moles = Molarity x volume

moles = 0.275 x 0.015

moles = 0.0041

4.- Use proportions to calculate the moles of NaOH

                  1 mol of H₂SO₄ 2 moles of NaOH

                 0.0041 moles      x

                   x = (0.0041 x 2) / 1

                   x = 0.0083 moles of NaOH

5.- Calculate the molarity of NaOH

Molarity = moles/volume

Molarity = 0.0083/0.02

Molarity = 0.415

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

c. electrical charges of ionic bonds.