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zhenek [66]
3 years ago
15

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?

Chemistry
1 answer:
cestrela7 [59]3 years ago
4 0
The pH unit has 10x as many hydrogens ions as the unit above.
Ex: A pH of 5 would have 10x more hydrogen ions than a pH of 6 
and 100x more than if it had a pH of 7.
With a pH of 9 and 3, this is equivalent to 10⁶
So your answer should be:
1,000,000


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A piece of metal with a mass of 114 g was placed into a graduated cylinder that contained 25. 00 ml of water, raising the water
alexgriva [62]

The density of the metal is 6.51 g/cm3 .

<h3>What is density, for instance?</h3>

How much "stuff" is contained in a specific quantity of space is determined by its density. For instance, a block of the harder, lighter material gold (Au) will be denser than a block of the heaviest element lead (Pb) (Au). Styrofoam blocks are less dense than bricks. Mass per unit size serves as its definition.

Briefing :

mass, m = 114 g

initial volume, V1 = 25 mL

final volume, V2 = 42.5 mL

Volume of the metal piece, V = V2 - V1

                                                 = 42.5 - 25

                                                 = 17.5 mL

1 mL = 1 c.c

So, Volume of metal, V = 17.5 c.c.

Let the density of the metal is d.

density = mass / volume

         d = 114 / 17.5

            = 6.51 g/c.c

Thus, the density of metal is 6.51 g/c.c.

To know more about density visit ;

brainly.com/question/15164682

#SPJ4

3 0
1 year ago
Please help! Will mark brainlist if correct
Ratling [72]
1 and 2 are correct

Genes for the trait are present in both genders

Growing a beard in males is a sex limited trait

Explanation
The traits CAN be expressed physically
Anyone can have green eyes regardless of gender
8 0
3 years ago
Read 2 more answers
How do acquired characteristics differ from adaptations
SOVA2 [1]

Answer:

acquired traits are traits that organisms develops over a lifetime. adaptation are trait that enhances an organism's ability to survive and reproduce in its environment.

5 0
2 years ago
James was standing on a boat in deep ocean water. He wanted to see how long it would take a tennis ball to reach the shore if he
Black_prince [1.1K]

Answer:

only the wave energy of the water moves

Explanation:

The plan will not work due to the fact that only the wave energy of the water moves and not the water itself.

<em>The wave motion of water does not displace the water. It is only able to transfer energy from one point to another within the medium. Hence, the ball will hardly be displaced because the water itself does not move. However, it can get to the shore with the assistance of the water current.</em>

7 0
3 years ago
Can anyone solve this please. I need this fastly
Natalka [10]

Answer:

Average atomic mass = 63.3896

Explanation:

Step 1: Find how much Cu-65 we have

1 - Amount of Cu-63 = Amount of Cu-65

1 - 0.6915 = Amount of Cu-65

Amount of Cu-65 = 0.305

Step 2: Find the average atomic mass of Cu

(0.6915 x 63) + (0.305 x 65) = <em>Average atomic mass</em>

(43.5645) + (19.825) = <em>Average atomic mass</em>

63.3895 = <em>Average atomic mass</em>

Therefore the average atomic mass of Cu is 63.3895 atomic mass units

4 0
3 years ago
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