If 25 ml of bromine, a liquid element at room temperature, is added to 100ml of water, what would be the resulting molar concentration of bromine?

To calculate the molar concentration of bromine in the resulting solution, we first need to determine the number of moles of bromine present.

Step 1: Convert the volume of bromine to liters.
Given that 1 liter (L) is equivalent to 1000 milliliters (ml), we can convert the volume of bromine from milliliters to liters by dividing it by 1000.
25 ml ÷ 1000 = 0.025 L

Step 2: Calculate the number of moles of bromine using the formula:
moles = volume (in liters) × molarity
Since the volume is given as 0.025 L and the molarity is unknown, we need to rearrange the formula. The rearranged formula is:
molarity = moles ÷ volume (in liters)

Step 3: Calculate the molarity of bromine.
Assuming that all of the 25 ml of bromine dissolves completely in the 100 ml of water, we can consider the final volume of the solution as the sum of the volumes of bromine and water.
Final volume = 25 ml + 100 ml = 125 ml

To convert the final volume to liters, divide by 1000.
Final volume in liters = 125 ml ÷ 1000 = 0.125 L

Now, we can calculate the molarity using the formula:
molarity = moles ÷ volume (in liters)

Since the volume of bromine was 0.025 L, we can write the equation as:
molarity = moles ÷ 0.025 L

However, since we still need to calculate the number of moles, we'll rearrange the formula again:
moles = molarity × volume (in liters)

Given that the volume is 0.025 L and the volume in liters is known, we can substitute the values into the equation:
moles = molarity × 0.025 L

We can rearrange the equation one more time to solve for molarity:
molarity = moles ÷ 0.025 L

Now that we have the formula, we need to determine the number of moles of bromine.

Step 4: Calculate the number of moles of bromine.
To find the number of moles, we need to use the formula:
moles = mass ÷ molar mass

Since we have 25 ml of bromine, we need to convert the volume to grams, as the molar mass is typically measured in grams. To do this, we need the density of bromine.

Step 5: Determine the density of bromine.
The density of bromine is approximately 3.12 grams per milliliter (g/ml).

Using the density, we can calculate the mass of 25 ml of bromine:
mass = volume × density
mass = 25 ml × 3.12 g/ml

Now, we can substitute the mass value into the moles equation:
moles = mass ÷ molar mass

The molar mass of bromine is approximately 79.9 g/mol.

We can now calculate the number of moles:
moles = (25 ml × 3.12 g/ml) ÷ 79.9 g/mol

Finally, we can determine the molarity of bromine by plugging the values into the molarity equation.
molarity = moles ÷ 0.025 L

I'll calculate it now.