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deff fn [24]
2 years ago
6

Edmentum

Chemistry
1 answer:
goldenfox [79]2 years ago
6 0

Answer:

They all contain switches

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Two isotopes of the same element will have the same _____ but a different ____. (2 points)
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Two isotopes of the same element will have the same ATOMIC NUMBER but a different MASS NUMBER.

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3 years ago
If a sample of sodium chloride with a mass of
alex41 [277]
Original molarity was 1.7 moles of NaCl

Final molarity was 0.36 moles of NaCl

Given Information:

Original (concentrated) solution: 25 g NaCl in a 250 mL solution, solve for molarity

Final (diluted) solution: More water is added to make the new total volume 1.2 liters, solve for the new molarity

1. Solve for the molarity of the original (concentrated) solution.

Molarity (M) = moles of solute (mol) / liters of solution (L)

Convert the given information to the appropriate units before plugging in and solving for molarity.

Molarity (M) = 0.43 mol NaCl solute / 0.250 L solution = 1.7 M NaCl (original solution)

2. Solve for the molarity of the final (diluted) solution.

Remember that the amount of solute remains constant in a dilution problem; it is just the total volume of the solution that changes due to the addition of solvent.

Molarity (M) = 0.43 mol NaCl solute / 1.2 L solution

Molarity (M) of the final solution = 0.36 M NaCl

I hope this helped:))
6 0
2 years ago
1. A dry, empty bottle is placed in an ice bath. After the air inside the bottle is cooled off, a balloon is placed
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thats it.

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