Part A What is the concentration of K+ in 0.15 M of K₂S? Express your answer to one decimal place and include the appropriate units. ► View Available Hint(s) Value Submit Part B μA Submit Units If CaCl₂ is dissolved in water, what can be said about the concentration of the Ca²+ ion? ► View Available Hint(s) Part C ? It has the same concentration as the C1 ion. OIts concentration is half that of the CI ion. Its concentration is twice that of the CI ion. OIts concentration is one-third that of the CI ion. A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 400. mL of a solution that has concentration of Na+ ions of 0.900 M ? Express your answer to three significant figures and include the appropriate units.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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Part A
What is the concentration of K+ in 0.15 M of K₂S?
Express your answer to one decimal place and include the appropriate units.
► View Available Hint(s)
Value
Submit
Part B
μÃ
If CaCl2 is dissolved in water, what can be said about the concentration of the Ca²+ ion?
► View Available Hint(s)
Units
It has the same concentration as the Cl¯ ion.
Its concentration is half that of the C1 ion.
Its concentration is twice that of the C1 ion.
Submit
Its concentration is one-third that of the C1 ion.
Part C
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 400. mL of a solution that has a concentration of
Na+ ions of 0.900 M ?
Express your answer to three significant figures and include the appropriate units.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff97703e1-87fb-4d48-bfda-fef5caeb697f%2Fde1a2f56-a618-4e3a-b45a-4894a549b67f%2Fegb3p28_processed.png&w=3840&q=75)
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