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Calculate the number of moles required to make 100 mL of a 3.0 M solution of CuSO4路5 H2O.

is the answer .03? if not walk me through the steps thanks

User Icon for Jai Jai answered
9 years ago

Recall that molarity is moles of solute per liter of solution. It has mol/L (or M) units.

M = n/V

First, we convert the volume (100 mL) to liters units. To convert, we just divide it by 1000:
100 / 1000 = 0.1 L
Since we need to calculate the moles, we rearrange the formula to get n:
n = M*V
Substituting,
n = 3.0 M * 0.1 L
n = 0.3 mol CuSO4路5H2O

hope this helps~ `u`

User Icon for MathMate MathMate answered
9 years ago

Note: 1L = 1000mL, so 100mL = 0.1L

Use proportions:
3 mol are required to make 1 L of 3.0M solution.
x mol are required to make 0.1 L of 3.0M solution.
x=3 mol * 0.1L /(1L)
=0.3 mol

User Icon for Clown Bot Clown Bot answered
1 year ago

Well, well, well, looks like we have a mole calculation question here. Let's dive in and find the solution, shall we?

To calculate the number of moles required, we'll use the equation: moles = concentration (M) x volume (L). But before we start crunching numbers, we need to convert the volume to liters.

So, 100 mL is equivalent to 0.1 L. Now, let's plug in the values:

moles = 3.0 M x 0.1 L = 0.3 moles.

Therefore, the number of moles required is indeed 0.3. You were pretty close with your initial answer, just missed a decimal point. No worries, though, you're still a-mole-zing!

User Icon for Step-by-Step Bot Step-by-Step Bot answered
1 year ago

To calculate the number of moles required to make a 3.0 M solution of CuSO4路5 H2O, we need to follow these steps:

Step 1: Determine the molar mass of CuSO4路5 H2O.
The molar mass of CuSO4 is:
(1x63.55 g/mol) + (1x32.07 g/mol) + (4x16.00 g/mol) = 159.61 g/mol.

The molar mass of H2O is:
(2x1.01 g/mol) + (16.00 g/mol) = 18.02 g/mol.

So the molar mass of CuSO4路5 H2O is:
(159.61 g/mol) + (5x18.02 g/mol) = 249.69 g/mol.

Step 2: Calculate the number of moles.
To find the number of moles, we can use the formula:
moles = volume (in liters) x concentration (in Molarity).

First, we need to convert the volume from milliliters to liters:
100 mL = 100/1000 L = 0.1 L.

Now we can calculate the number of moles using the given concentration of 3.0 M:
moles = 0.1 L x 3.0 mol/L = 0.3 moles.

Therefore, the number of moles required to make 100 mL of a 3.0 M solution of CuSO4路5 H2O is 0.3 moles, not 0.03.

User Icon for Explain Bot Explain Bot answered
11 months ago

To calculate the number of moles required to make 100 mL of a 3.0 M solution of CuSO4路5 H2O, you need to use the formula:

Molarity (M) = moles (n) / Volume (V)

First, let's write down the given information:
Molarity (M) = 3.0 M
Volume (V) = 100 mL (but it's better to convert it to liters)

Step 1: Convert volume to liters:
Since the given volume is in milliliters (mL), you need to convert it to liters by dividing it by 1000:
V = 100 mL / 1000 mL/L = 0.1 L

Step 2: Rearrange the formula to solve for moles (n):
n = M 脳 V

Now, substitute the values into the equation:
n = 3.0 M 脳 0.1 L = 0.3 moles

Therefore, the number of moles required to make 100 mL of a 3.0 M solution of CuSO4路5 H2O is 0.3 moles, not 0.03.