Answer:
To calculate the number of moles of NaCl needed to make a 10M solution in 3L of water, we can use the formula:
moles = Molarity x volume (in liters)
Here, Molarity = 10M and volume = 3L.
So, the number of moles of NaCl required can be calculated as:
moles = 10M x 3L = 30 moles
To convert moles to grams, we need to use the molar mass of NaCl, which is 58.44 g/mol. So, the mass of NaCl required can be calculated as:
mass = moles x molar mass = 30 moles x 58.44 g/mol = 1753.2 g
Therefore, we need 30 moles or 1753.2 grams of NaCl to make a 10M solution in 3L of water.
Step-by-step explanation: