To calculate the number of grams of HBr in 3.50 L of a 0.500 M solution, we need to use the formula:
moles of solute = concentration x volume
Once we know the moles of HBr in the solution, we can convert it to grams using the molar mass of HBr.
The molar mass of HBr is approximately 80.91 g/mol.
Here are the calculations:
moles of HBr = concentration x volume
moles of HBr = 0.500 mol/L x 3.50 L
moles of HBr = 1.75 mol
mass of HBr = moles of HBr x molar mass of HBr
mass of HBr = 1.75 mol x 80.91 g/mol
mass of HBr = 141.4 g
Therefore, there are 141.4 grams of HBr dissolved in 3.50 L of a 0.500 M solution.