Suppose you wanted to dissolve 40.0 g of NaOH in enough H20 to make 6.00 L of solution and what is the molarity of the solution?

Question

Suppose you wanted to dissolve 40.0 g of NaOH in enough H20 to make 6.00 L of solution and what is the molarity of the solution?

Answer 1

mols NaOH = grams/molar mass

M = moles/L

Answer 2

Suppose you wanted to disoved 40.0g NaoH in enough H20 .what is the molarity of a solution.

Answer 3

To find the molarity of the solution, we need to calculate the number of moles of NaOH, then divide it by the volume of the solution. We can use the formula:

Molarity (M) = moles of solute / volume of solution (in liters)

Given:
Mass of NaOH (solute) = 40.0 g
Volume of solution = 6.00 L

Step 1: Convert the mass of NaOH to moles.
The molar mass of NaOH is:
Na: 22.99 g/mol
O: 16.00 g/mol
H: 1.01 g/mol

So, the molar mass of NaOH is:
22.99 + 16.00 + 1.01 = 39.99 g/mol

To find the number of moles of NaOH, we'll divide the mass by the molar mass:
moles = mass / molar mass
moles = 40.0 g / 39.99 g/mol

Therefore, the number of moles of NaOH is approximately 1.00 mol (rounded to two decimal places).

Step 2: Convert the volume of the solution to liters.
The given volume is already in liters, so no conversion is necessary.

Step 3: Calculate the molarity.
Using the formula mentioned above:
Molarity (M) = moles of solute / volume of solution (in liters)
Molarity = 1.00 mol / 6.00 L

Therefore, the molarity of the solution is approximately 0.167 M (rounded to three decimal places).

So, the molarity of the solution is 0.167 M.

Answer 4

To find the molarity of the solution, you need to first calculate the number of moles of NaOH present in the solution, and then divide it by the volume of the solution in liters.

First, you need to convert the mass of NaOH to moles. You can do this by using the molar mass of NaOH, which is 22.99 g/mol for Na, 16.00 g/mol for O, and 1.01 g/mol for H.

The molar mass of NaOH = (22.99 g/mol) + (16.00 g/mol) + (1.01 g/mol) = 39.99 g/mol

Now, divide the given mass of NaOH by its molar mass to find the number of moles:
Number of moles = mass / molar mass
Number of moles = 40.0 g / 39.99 g/mol

Next, you need to convert the volume of the solution from milliliters to liters. Since 1 L = 1000 mL, you can divide the given volume by 1000:
Volume in liters = 6.00 L

Now, divide the number of moles of NaOH by the volume of the solution to find the molarity:
Molarity = moles / volume
Molarity = (40.0 g / 39.99 g/mol) / 6.00 L

Calculate this to find the molarity of the solution.