I need help on question 3 true or false thxxx quick i’m timed

If solid NaCl is added to a saturated water solution of PbCl2 at 20o C, a precipitate is formed. How would this affect the value

Vadim26 [7]

For the question above, the answer would be C. The Ksp remains the same. The common ion effect will change the concentrations of the ions in thesolution, but the value of Ksp is CONSTANT at a constant temperature thus Ksp does not change.

5 0

4 years ago

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Suppose you are working in a chemistry lab and trying to make a solution of a substance called Sodium Chloride (which is a solid

Alenkasestr [34]

Answer:

a weighing balance, a measuring cylinder, a spatula, a beaker/flask, and a stirrer

Explanation:

The lab apparatus that would be needed to prepare a solution of sodium chloride would be <em>a weighing balance, a measuring cylinder, a spatula, a beaker/flask, and a stirrer.</em>

The weighing balance would be used to weigh out the required amount of sodium chloride. The beaker or flask would be placed on the weighing balance and its weight zeroed. The spatula would then be sued to take out the sodium chloride from its container into the beaker till the required amount is reached. The measuring cylinder would then be used to measure out the required volume of water which would be added to the salt in the beaker. The stirrer would then be used to stir the mixture in order for the salt to dissolve.

7 0

3 years ago

Hydrogen bonds can form between hydrogen and which three other elements?

marissa [1.9K]

Oxygen, nitrogen, or fluorine

7 0

3 years ago

How many grams are in 2.3 moles of N?

jok3333 [9.3K]

The amount of grams that are in 2.3 moles of N = 32.223 or 32/100
Because there are 14.01 grams per mile of nitrogen atoms.
So…
14.01 x 2.3= 32.223
Hope this helps :)

6 0

3 years ago

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On hot days, you may have noticed potato chip bags seem to inflate, even though they have not been opened. If I have a 250 mL ba

MrRa [10]

The first law here is Charles's law and the new volume will be 285.08 mL

Converting degree celsius to kelvin when solving gas laws problem.

kelvin = degree celsius + 273.15

Kelvin = 19 + 273.15 = 292.15 K

Kelvin = 60 + 273.15 = 333.15 K

Given Data:

V1 (initital volume) = 250 ml

T1 (initial temperature) = 19°c or 292.15 K

V2 (final volume) = unknwon ?

T2 (final temperature) = 60°c or 333.15 K

Charles' law which states that volume is directly proportional to temperature when the amount and pressure of the gas are constant.

Applying the formula, we get

V2 = V1T2 / T1

= 250 ml × 333.15 K / 292.15 K (cancel kelvin unit)

= 83287.5 ml / 292.15

= 285.08 ml

The new volume will be 285.08 ml

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6 0

1 year ago