I weighed out 0.2538g of pure ascorbic acid (F. Wt = 176.12g). I dissolved with <30mL of deionized water and added about 0.5 mL of diluted HNO3. Then I transfered it to a 50mL volumetric and diluted to volume. What's the concentration?
2006-11-28 05:49:10 · 3 answers · asked by slicksingh2k 2 in Science & Mathematics ➔ Chemistry
Yeah I have rocks in my head. The HNO3 thing threw me off. THought i had to convert to mols, find limiting react, ratio and then molarity
2006-11-28 06:26:05 · update #1
take your mass and divide by molecular mass (m/MM).
take this number and divide it by your total volume (50mL).
that gives you mol/mL... so multiply by 1000ml/L and you get your answer in mol/L or M
2006-11-28 06:03:38 · answer #1 · answered by brandonlsmithe 2 · 0⤊ 0⤋
Molarity = moles / liter
Molarity = (0.2538/176.12) / .05
Molarity = 0.03 M
2006-11-28 14:55:03 · answer #2 · answered by عبد الله (ドラゴン) 5 · 0⤊ 0⤋
do you have rocks in your head?
2006-11-28 13:58:09 · answer #3 · answered by tonytorono 2 · 0⤊ 0⤋