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storchak [24]
2 years ago
12

Please help me please

Chemistry
1 answer:
nasty-shy [4]2 years ago
6 0

Answer:

It is the second one

Explanation:

although it is still moving it does not use much energy to increase like E for example.

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What is the molarity of a solution that contains 125 g nacl in 4.00 l solution?
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[NaCl[ = 0.535M

Explanation:

We determine the moles of solute:

125 g . 1 mol/ 58.45 g = 2.14 moles

Molarity (mol/L) → 2.14 mol / 4L → 0.535M

Molarity is a sort of concentration that indicates the moles of solute in 1L of solution

4 0
3 years ago
Un gas ocupa un volumen de 12 litros a una presión de 912 mm Hg. Si permanece constante la temperatura, ¿A qué presión el gas oc
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Answer:

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Explanation:

We use the Boyle´s Mariotte ´s law: for a given mass of gas at constant temperature, the pressure and volume vary inversely proportionally: P1xV1= P2xV2. The unit of pressure is converted to mmHg in atm.

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