Part B When you need to produce a variety of diluted solutions of a solute, you

Question

Part B When you need to produce a variety of diluted solutions of a solute, you can dilute a series of stock solutions. A stock solution has a significantly higher concentration of the given solute (typically 101 to 104 times higher than those of the diluted solutions). The high concentration allows many diluted solutions to be prepared using minimal amounts of the stock solution. What volume of a 6.97 M stock solution do you need to prepare 100. mL of a 0.3074 Msolution of HNO3? Express the volume to three significant figures with the appropriate units. Hints VValue Units Submit My Answers Give Up

Explanation / Answer

Concentration of stock solution = 6.97 M

Volume of the Diluted solution = 100 ml

Concentrated of diluted solution = 0.3074

Formula

Va x Na = Vb x Nb

Va = 100 ml

Na = 0.3074 M

Nb = 6.97 M

Va = ?

Va = 100 x 0.3074 / 6.97 = 4.41 ml

Hence 4.41 ml of 6.97 M solution is made up to 100 ml to give 0.3074 M

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---