A 1.516 M soltion is made by dissolving 1.570 g of the compound in 0.2238 mol of water. Determine the molar mass and apparent molecular formula of the compound.
Bob Pursley did this for you yesterday.
To determine the molar mass and apparent molecular formula of the compound, we need to use the given information to calculate the moles of the compound in the solution.
First, find the moles of water in the solution using the given amount of water (0.2238 mol). Since water has a molar mass of approximately 18 g/mol, we can calculate the mass of water as follows:
Mass of water = moles of water * molar mass of water
Mass of water = 0.2238 mol * 18 g/mol
Mass of water = 4.0296 g
Now, we can calculate the mass of the compound in the solution by subtracting the mass of water from the total mass of the solution:
Mass of compound = Total mass of solution - Mass of water
Mass of compound = 1.570 g - 4.0296 g
Mass of compound = -2.4596 g
Since we have a negative mass, this suggests an error or typo in the given information. Please double-check the values provided to ensure they are correct, especially the mass of the compound.
Once we have the correct mass of the compound, we can calculate the moles of the compound in the solution using the molar mass of the compound:
Moles of compound = Mass of compound / Molar mass
From the given mass of the compound, we can calculate the molar mass and apparent molecular formula. However, since the mass of the compound is missing or negative, it is not possible to determine the molar mass and molecular formula with the information provided.