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1 year ago

Which indicator is blue in a solution that has a pH of 5.6?

Chemistry

2 answers:

m_a_m_a [10]1 year ago

7 0

Bromcresol green is the indicator that is blue in a solution that has a Ph of 5.6.

Vlad1618 [11]1 year ago

4 0

Answer:

1) bromcresol green

Explanation:

An acid base indicator is used to indicate the completion of an acid base titration experiment. Acid base indicators shows color change with a change in the pH of the solution. Bromcresol green, methyl orange, thymol blue, and bromthymol blue are acid base indicators. At pH of 5.6 bromcresol green is blue, methyl orange is yellow, thymol blue is yellow, and bromthymol blue is also yellow.

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sweet-ann [11.9K]

2. Precipitation, because when it rains the water that was taken when it was evaporated is replaced and it fills the lake back up

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1 year ago

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What are characteristics of absorption spectra? Check all that apply.

Amanda [17]

The absorption spectrum is the result of absorption of light radiation by a material (solid or liquid) as a function of wavelength or frequency. The figure is shown below:

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2 years ago

To prepare a 2 M solution of potassium nitrate (KNO3), which quantities must be measured? The mass of the and the volume of the

Olin [163]

Answer:

The mass of the solute and the volume of the solution.

Explanation:

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In this case, given the formula of molarity:

$M=\frac{n_{solute}}{V_{solution}}$

In such a way, since the moles could not be directly measured, we must measure the mass of the solute and by using its molar mass, one could compute its moles. Moreover, since the solution is composed by the solvent (typically water) and the solute, we consequently must measure the volume of the solution needed for the preparation of such concentration-known solution. In such a way, we can actually prepare the required solution.

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1 year ago

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In an experiment, the density of an unknown liquid was calculated to be 0.78 g/ml. if the accepted value is 0.75 g/ml, calculate

Vikki [24]

Percentage error is the relative error your measured value is from the true or accepted value. The formula for percentage error is written below:

Percentage error = |True Value - Measured Value|/True Value * 100
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1 year ago

How many atoms of zirconium are in 0.3521 mol of zirconium?

lora16 [44]

Answer:

2.12×10²³ atoms.

Explanation:

From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ atoms. This simply means that 1 mole of zirconium also 6.02×10²³ atoms.

Thus, we can obtain the number of atoms present in 0.3521 mole of zirconium as follow:

1 mole of zirconium also 6.02×10²³ atoms.

Therefore, 0.3521 mole of zirconium will contain = 0.3521 × 6.02×10²³ = 2.12×10²³ atoms.

Therefore, 0.3521 mole of zirconium contains 2.12×10²³ atoms.

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1 year ago