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yarga [219]
2 years ago
14

A solution of the primary standard potassium hydrogen phthalate (KHP), KHC8H4O4 , was prepared by dissolving 0.4877 g of KHP in

about 50 mL of water. Titration of the KHP solution with a KOH solution of unknown concentration required 21.66 mL to reach a phenolphthalein end point. What is the concentration of the KOH solution
Chemistry
1 answer:
earnstyle [38]2 years ago
6 0

Answer:

The impact of dinosaurs caused Dwayne Johnson to beat paper in rock paper scissors as the weak strength of the plants on the moon are diabolical in the atmosphere.

Explanation:

Thats why me and Selena Gomez share the same light bulb.

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Why is a wire used to connect the electrodes in an electrochemical cell?
jarptica [38.1K]

Answer:

D. So electrons can flow from one electrode to another

Explanation:

An electrochemical cell is any cell in which electricity is produced by reason of a chemical change.

An electrochemical cell consists of two electrodes, these two electrodes are connected using a wire.

Usually, electrons flow from one electrode to another via this wire thereby enabling the electrochemical processes of oxidation and reduction in the cell to proceed effectively.

5 0
2 years ago
Where is desertification likely to occur?
viktelen [127]
I think in drylands, drylands are particularly affected by desertification.
5 0
3 years ago
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Tin has ten stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occuring tin atoms. How many atoms of 124Sn are pr
matrenka [14]

The average atomic mass of Sn is 118.71 g/mol

the percentage of heaviest Sn is 5.80%

the given mass of Sn is 82g

The total  moles of Sn will be = mass / atomic mass = 82/118.71=0.691

Total atoms of Sn in 82g = 6.023X10^{23}X0.691=4.16X10^{23}

the percentage of heaviest Sn is 5.80%

So the total atoms of Sn^{124} = 5.80% X 4.16X10^{23}

Total atoms of Sn^{124}=2.41X10^{22} atoms

the mass of Sn^{124} will be = \frac{2.41X10^{22}X124}{6.023X10^{23}}=4.96g

5 0
3 years ago
Dry ice changes from a solid directly into a gas at room temperature. Sublimation is the transition of a substance directly from
Svetach [21]

Answer:

The process in which a solid changes directly to a gas is called sublimation. It occurs when the particles of a solid absorb enough energy to completely overcome the force of attraction between them. Dry ice (solid carbon dioxide, CO2) is an example of a solid that undergoes sublimation.

3 0
2 years ago
Calculate the speed of a wave with a wavelength of 6 meters and a frequency of 3 hertz.
Kruka [31]

The answer is 18 you multiply wavelength (6) times frequency (3)
3 0
2 years ago
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