Answer:
You need to use 81 mL of the 1.041 M NaCl solution to obtain 4.93 g of NaCl.
Step-by-step explanation:
We can use the following formula to calculate the volume of a solution needed to obtain a certain amount of solute:
Volume of solution (in L) = Amount of solute (in mol) / Concentration of solution (in mol/L)
First, we need to convert the given mass of NaCl into moles:
moles of NaCl = mass of NaCl / molar mass of NaCl
moles of NaCl = 4.93 g / 58.44 g/mol
moles of NaCl = 0.0843 mol
Next, we can use the above formula to calculate the volume of the 1.041 M NaCl solution needed:
Volume of solution (in L) = moles of NaCl / concentration of NaCl solution
Volume of solution (in L) = 0.0843 mol / 1.041 mol/L
Volume of solution (in L) = 0.081 L
Finally, we can convert the volume from liters to milliliters:
Volume of solution (in mL) = 0.081 L x 1000 mL/L
Volume of solution (in mL) = 81 mL
Therefore, you need to use 81 mL of the 1.041 M NaCl solution to obtain 4.93 g of NaCl.