Chemistry, 06.05.2020 22:10 TrueKing184
An aqueous solution of sodium chloride is diluted to make a medical saline solution. The original
solution volume was 0.03 liters. The saline solution has a new molarity (M) of 0.15 Mand a volume of
0.20 liters. What was the original molarity of the sodium chloride solution?
Answers: 2
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Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?
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Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.
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Chemistry, 22.06.2019 20:20
The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.
Answers: 1
Chemistry, 23.06.2019 01:20
How can parts of a solution be separated by chromatography?
Answers: 1
An aqueous solution of sodium chloride is diluted to make a medical saline solution. The original
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