Quiz Globe:
Question 1: What means pH?
1. Prince Harry
2. Peristaltic Hydration
3. Potential Hyd
Question 2: Do we have pH in our body?
1. No
2. Sometimes
3. Yes
Question 3: What is the highest pH in our body?
1. Urine
2. Blood
3. Pancreas secretions
Question 4: Acids are found on the pH scale between the numbers…
1. 0-7
2. 0-20
3. It has no numbers
Question 5: Bases are found on the pH scale between the numbers….
1. It has no numbers
2. 7-14
3. 0-7
Question 6: Explanation: A solution that has a pH of 7 is neither acidic or
basic. A solution that is _______ has a pH of 7.
1.
2.
3.
4.
Acid
Basic
Neutral
None of the above.
Question 7: The pH scale is actually measuring the number of H+ ions in a
solution. If there are a lot of H+ ions, the pH is very_______
1. High
2. Neutral
3. Low
Question 8: Distilled water is _______
1. Basic
2. Neutral
3. Acidic
Question 9: A _______ is what scientists use to measure how basic or acidic a
liquid is. The ______ ranges from values very close to 0 through 14
1. Pipette
2. Beaker
3. pH scale
Memorie
The concept of pH value comes from the Latin word Potentia Hydrogenij. pH
is a measure of the acidity of an aqueous solution. A neutral solution at
room temperature is the pH around 7. Pure water has a pH value of 7. Acidic
solutions have a pH lower than 7, basic solutions have a pH higher than 7.
These solutions are also called ' lyes '.
You can measure the pH value in different ways.
You can do it via a special pH indicator paper. A pH indicator paper works
on an easy way, but you can't always assume that it is always true. It is
quite reliable but the results may vary. On a piece of paper there is a drop of
a solution done. The boxes on the piece of paper, then you need to figure out
what color fade best matches the petal where exactly all the colors are
described. The box that most closely matches the description is probably the
correct pH value it has than the good solution.
You can also adjust the pH value measured by a pH meter to use. There are
many different types of ph meters but what they all have is a tip, that's the
scoop or tip at the end of the device. The pH meter uses a composite
electrode, which is a chemical reaction, which consists of a reference
electrode and a measuring electrode. The Tip is made of special glass that
glass is sensitive to pH. That tip is a kind of gel layer. And that sits on the
outside but also inside. In the inside there is a buffer solution, which is a
acid. The H + ions, atoms or molecules that are electrical, take the outer
layer loaded on or not making a difference on the tip.
Hallo,
We zouden graag een memorie spelletje van de gegevens hierboven willen
maken. Met een intro van de tekst die erboven staat.
Heel erg bedankt.
groetjes
pH 14 1mol/l Natronloog solution
pH 13 solution or Natronloog kaliloog solution of 0.1 mol/l
pH 11.5 Household ammonia (ammonia)
pH 10,5 Suds
pH 8.5 seawater, intestine (slightly elevated pH by gal)
7.4 human blood
pH 7 water
pH 6,7 Milk
pH 6 rain
pH 5,5 Human skin
pH 5 acid rain
pH 4.5 Tomatoes
pH 4 tomatensap
pH 3 vinegar
pH 2,8 Cola
pH 2 lemon acid
pH 1 Zwavelzuur (accuzuur)
pH 0 Zoutzuur (1mol/l)