I do not understand these questions at all. Would you please explain the answers? I very much apperiate it!
1. How much sugar is there in 100 mL of a 10 percent aqueous sugar solution? What is the solvent in this solution?
2. What are the relative numbers of H3o+ and OH- ions in a acidic, an alkaline, and a neutral solution?
3. How many times more hydroxide ions are there in a solution with a pH of 9 than in a solution with a pH of 3?
4. If a solution has a pH of 7.5, what would its new pH be if the concentration of H3O+ ions in the solution were increased by 100 times?
(Sometimes this is like a forgein language...If you get it-gezz you are my hero!)
2007-01-30 12:34:47 · 3 answers · asked by questionthewitness 1 in Science & Mathematics ➔ Biology
1) solvent is water
2) acid = H3O+ > OH-
base = OH- > H3O+
neural = OH- = H3O+
3) an increase of 1 in the pH is equal to 10 times greater. A change of 6 = 10^6 or 1,000,000 times
4) 100 times = change of 2 in pH so the new pH would be 5.5
2007-01-30 12:58:44 · answer #1 · answered by physandchemteach 7 · 0⤊ 0⤋
10g of sugar in 100ml of 10% aqueous sugar solution. % solution is an antiquated way of doing things, but it still pops up occasionally, 1% is just 1g/100ml.
2007-01-30 21:28:18 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I think that those questions aren't in the right place,this ain't biology,It's chemistry.
and they really seem a little bit wrong,any way try to find the answer of those questions in the chemistry part.
hope u can find the answers .
2007-01-30 20:48:13 · answer #3 · answered by ~NANA~ 2 · 0⤊ 2⤋