Q. How many atoms of oxygen are present in 2 mol H2SO4?
4 oxygen atoms
Q. How many oxygen atoms are present in 49g of H2SO4?
If you divide 49 g by 98.1 g/mole you get . 4995 moles. Multiply this by 6.022 x 10^23 to get 3.008 x 10^23 molecules of H2SO4 in 49 g. If you multiply this by 4 (there are 4 oxygen atoms in each molecule) you get 1
Q. How many oxygen atoms are there in 5 gram Sulphuric acid?
The molecular formula of sulphuric acid is H2SO4 . 4× 5 = 20 moles of oxygen atoms. =120.44×1023 atoms.
Q. Why is H2SO4 called sulfuric acid?
Sulfuric acid or H2SO4 is made by burning sulfur in the presence of oxygen. It has a strong acidic property and is corrosive in nature.
Q. Is H+ acidic or basic?
Now there are more hydrogen ions than hydroxide ions in the solution. This kind of solution is acidic. A base is a substance that accepts hydrogen ions….What does it mean for a solution to be acidic or basic (alkaline)?
| pH Value | H+ Concentration Relative to Pure Water | Example |
|---|---|---|
| 1 | 1 000 000 | gastric acid |
Q. What is the pH scale?
pH is a measure of how acidic/basic water is. The range goes from 0 – 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.
Q. What is a pH meter called?
instrument. PH meter, electric device used to measure hydrogen-ion activity (acidity or alkalinity) in solution. Fundamentally, a pH meter consists of a voltmeter attached to a pH-responsive electrode and a reference (unvarying) electrode.
Q. What is pH stand for?
power of hydrogen
Q. Is 8 basic or neutral?
The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic….
| Most H+ ions: pH = 4; or pH = 5. | Answer 4 |
|---|---|
| Least OH- ions: pH = 8; or pH = 9. | Answer 8 |
Q. Why is pH 7 considered neutral?
Even in pure water ions tend to form due to random processes (producing some H+ and OH- ions). The amount of H+ that is made in pure water is about equal to a pH of 7. That’s why 7 is neutral.
Q. What does a pH of 7 mean?
pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.
Q. What’s the pH of pure water?
7
Q. What is pH of a neutral solution?
A pH equal to 7 indicates a neutral solution.
