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2 years ago

How can you estimate the pH range of an indicator’s color change? Why do some indicators have two separate pH ranges?

Chemistry

1 answer:

erastova [34]2 years ago

4 0

The color change of a pH indicator is caused by the dissociation of the H+ ion from the indicator.

<h3 /><h3>What is indicator?</h3>

In science, a marker capability or a trademark capability of a subset An of a set X is a capability characterized from X to the two components set {0, 1}, normally signified as, and it demonstrates whether a component in X has a place with A. Markers are insights used to gauge current circumstances as well as to figure monetary or financial patterns. In the realm of money management, pointers regularly allude to specialized diagram designs getting from the value, volume, or open revenue of a given security. Markers are insights used to gauge current circumstances as well as to conjecture monetary or financial patterns. In the realm of money management, pointers normally allude to specialized graph designs getting from the value, volume, or open revenue of a given security.

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Harrizon [31]

Answer:

attracted towards each other

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3 years ago

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What volume of water is needed for 0.196 mol of CdCl2 to prepare a 3.91 M solution? L

Brilliant_brown [7]

0.050 litres of the water will be required to make a 3.91 M solution with 0.196 moles in it.

Explanation:

Data given:

moles of Cd $Cl_{2}$ = 0.196 Moles

Molarity of the solution = 3.91 M

Volume in litres =?

molarity is calculated by the formula:

molarity = $\frac{number of moles}{volume in litres}$

putting the values in the above formula and rearranging it for volume:

volume = $\frac{number of moles}{molarity}$

volume = $\frac{0.196}{3.91}$

volume = 0.050 litres

0.050 litres of the water will be required to make a 3.91 M solution with 0.196 moles in it.

Molarity is the number of moles present in a given volume of solution which is given in litres. It is the measurement of the concentration of particular solute in a solution.

4 0

3 years ago

Please help.

denpristay [2]

Answer:

The bowling ball has more kinetic energy than the tennis ball

Explanation:

Using the formula 1/2 mass × acceleration we found that the tennis ball had a kinetic energy of 0.75 while the bowling ball had a kinetic energy of 10.5 hence the bowling ball has the ability to do more work

5 0

3 years ago

Pls help I will give u points pls

True [87]

Answer:

i think D

Explanation:

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3 years ago

What is the pressure in a gas container that is connected to an open-end U-tube manometer if the pressure of the atmosphere is 7

mojhsa [17]

Answer:

636 mm Hg

Explanation:

The pressure in the gas container is equal to the atmospheric pressure minus the height of mercury:

Atmospheric pressure = 722 torr = 722 mm Hg

Height = 8.60 cm = 86 mm Hg

Pressure = 722 - 86 = 636 mm Hg

So none of the given options is correct, the correct answer is 636 mm Hg.

5 0

3 years ago