Please show steps and provide a short explanation.

The formula weight of NaOH is 40.0.

1. How many grams of NaOH are needed to make 1M solution?
2. How many grams of NaOH are needed to make a 0.5M solution?
3. How many grams of NaOH are needed to make 0.25M solution?
4. How many grams of NaOH are needed to make 500mL of 1.0M solution?
5. How many grams of NaOH are needed to make 100mL of 1.0M solution?
6. How many grams of NaOH are needed to make 10mL of 0.2M solution?

Solution Preview

Steps in finding the mass of solute needed to prepare a solution of certain molarity:

a) Solve for the mole of solute needed.
The following working equation is useful:
Molarity = M = mole solute / volume of solution in liter

Hence,
Mole solute = Molarity x volume of solution in liter

b) Compute for the mass in gram of the solute needed.
Mass of solute in gram = mole solute x molar mass of the solute

1. How many grams of NaOH are needed to make 1M solution?
Note: Since the volume of the solution to be prepared is not specified, let us assume a volume of 100 ...

... 13- What volume of 0.150 HNO3 solution is need to ... amount of NaOH is equal to molar amount of ...Solutions, precipitations and balancing equations are provided. ...

... L NaOH solution. 31.90mL of the titrant was poured into the solution until the solution was able to change color. With these results, what is the molar mass of ...

... is made by adding 0.0150 mil solid NaOH into Solution A e) Calculate the pH for each of the solutions, A,B ... 10-1.2 = 0.063 M If 's' is the molar solubility, Ksp ...

... as 0.344 mol/L and the molar mass of ... subjects: concentration or molarity of the solutions and attractive ... 2 percent composition by weight of a solution made by ...

... Using activities, what is the molar solubility of La(IO3)3 in a 0.050 ... A solution containing 100.0 mL of 0.150 M HCl is titrated with 75.0 mL of 0.300 NaOH. ...

... 2.Given the molar concentration of hydroxide ion [OH -] = 4.6 X 10 -13, calculate the concentration of hydrogen ion ... 4. What is the pH of a 0.25 M NaOH solution? ...

... formic acid is mixed with 200mL of 4.8 molar NaOH. ... We can calculate the pH of the buffer solutions by. ... But when we dilute the solution, since the concentrations ...

... 3.5 mmol HOCl in the solution before NaOH is added ... 0.00285 The total volume of the solution is 20 ... The molar concentration of HOCl is 0.00065 / 0.02655 = 0.0245 ...