1. Not sure of how to do the calculations...
Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. ... Solution A's question or statement is the same but with M (molarity)
Is this right? The small m means molality. If it were changed to capital M, then solution A's MOLARITY is 1.17 g. Would both solutions be the same ?
0.1 L * (0.200 m NaCl/1L)*(58.443 g NaCl/1 mole NaCl) = 1.17 g NaCl
Would Sol'A contain more, less, or same moles of solute (NaCl)?
And finally, Is the volume of Sol A more, less, or the same as the volume of Sol'B? Why?
not sure if my calculations are correct or not...
To clarify, when you mention "Solution A's question or statement is the same but with M (molarity)," I assume you mean that there is another solution, Solution A, but the question or statement is given with molarity (M) instead of molality (m). Let's address your questions step by step:
1. Is this right? The small m means molality. If it were changed to capital M, then Solution A's MOLARITY is 1.17 g. Would both solutions be the same?
You are correct that the lowercase "m" represents molality, while the uppercase "M" represents molarity. Molality is the amount of solute (in moles) dissolved per kilogram of solvent, while molarity is the amount of solute (in moles) dissolved per liter of solution. Since the given question or statement uses a lowercase "m" for Solution A, it refers to molality, not molarity. Therefore, the solution with a molality of 0.200 m NaCl would not have a molarity of 1.17 g as you mentioned.
2. Would Solution A contain more, less, or the same moles of solute (NaCl)?
To determine the number of moles of solute in Solution A, you can use the molality value and the mass of NaCl given in the question: 0.200 m NaCl means 0.200 moles of NaCl per kilogram of solvent. However, we are not provided with the mass of the solvent, so it is not possible to determine the exact number of moles of NaCl in Solution A.
3. Is the volume of Solution A more, less, or the same as the volume of Solution B? Why?
The volume of Solution A is given as 100 mL in a 100 mL volumetric flask. On the other hand, we do not have any information about the volume of Solution B. Without knowing the volume of Solution B, it is not possible to compare the volumes of the two solutions. Therefore, it is unclear whether the volume of Solution A is more, less, or the same as the volume of Solution B.