Mass of evaporating dish = 41.36 g
Volume of saturated NaCl solution = 10.0 mL
Mass of evaporating dish and NaCl = 44.50 g
Mass of sodium hydrogen carbonate = 0.49g
What is the morality(M) of the sodium chloride solution if you prepare in 1 liter of solution?
How do you calculate this?
Your post needs some clarification. I suggest you post at the top of the page and do more than simply list data.
To calculate the molarity (M) of the sodium chloride (NaCl) solution, you need to use the formula:
Molarity (M) = (moles of solute) / (volume of solution in liters).
First, let's find the moles of NaCl using the given information:
1. Calculate the mass of NaCl dissolved in the saturated solution by subtracting the mass of the empty evaporating dish from the mass of the evaporating dish and NaCl:
Mass of NaCl = (Mass of evaporating dish and NaCl) - (Mass of evaporating dish)
= 44.50 g - 41.36 g
= 3.14 g
2. Convert the mass of NaCl to moles using the molar mass of NaCl. The molar mass of NaCl is 58.44 g/mol:
Moles of NaCl = (Mass of NaCl) / (Molar mass of NaCl)
= 3.14 g / 58.44 g/mol
= 0.0538 mol
Now, we need to find the volume in liters to calculate the molarity:
3. Convert the volume of the saturated NaCl solution from milliliters to liters:
Volume of solution (in liters) = Volume of saturated NaCl solution / 1000
= 10.0 mL / 1000
= 0.010 L
Finally, we can calculate the molarity (M) of the sodium chloride solution:
Molarity (M) = (Moles of NaCl) / (Volume of solution in liters)
= 0.0538 mol / 0.010 L
= 5.38 M
Therefore, the molarity of the sodium chloride solution, if prepared in 1 liter of solution, is 5.38 M.
To calculate the molarity (M) of the sodium chloride (NaCl) solution, you need to first determine the moles of NaCl in the given volume of saturated solution and then convert it to moles per liter.
Step 1: Calculate the moles of NaCl:
To do this, you need to determine the change in mass of NaCl in the evaporating dish.
Change in mass of NaCl = Mass of evaporating dish and NaCl - Mass of evaporating dish
Change in mass of NaCl = 44.50 g - 41.36 g
Change in mass of NaCl = 3.14 g
Now, convert the change in mass of NaCl to moles by using its molar mass. The molar mass of NaCl is 58.44 g/mol.
Moles of NaCl = Change in mass of NaCl / Molar mass of NaCl
Moles of NaCl = 3.14 g / 58.44 g/mol
Step 2: Calculate the molarity of NaCl:
Since you have determined the moles of NaCl in a volume of 10.0 mL, you need to convert it to moles per liter (mol/L).
Molarity (M) = Moles of NaCl / Volume of NaCl solution in liters
Molarity (M) = (Moles of NaCl / 10.0 mL) * (1000 mL / 1 L)
Note: The conversion factor (1000 mL / 1 L) is used to convert mL to L.
Finally, plug in the calculated values:
Molarity (M) = (3.14 g / 58.44 g/mol) * (1000 mL / 10.0 mL)
Now, calculate the value, which will give you the molarity (M) of the sodium chloride solution when you prepare it in 1 liter of solution.