Define the mole, and calculate the molar mass of a compound from the molecular formula.
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Q: Define pH and give some examples.
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A: Ion, is any atom or group of atoms with electric charges positive or negative.
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Q: what is the ph scale?
A: The questions ask to define the pH scale.
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Q: pH represents the:
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A: The unit of density is gm/cm3 .
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A: Atomic mass is described as the number of protons and neutrons in an atom.
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Q: explain the formation of anions and cations based on periodic trends.
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Define the mole, and calculate the molar mass of a compound from the molecular formula.
The mass of substance present in a sample of a given compound is divided upon the amount of substance present in the sample is said to be the molar mass.
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- How many grams of NaOH would you need to make 7,252 mL of a 230 mM NaOH solution (m.w. = 40.00 g/mol)? Do not include units in your answer; report your answer in the requested units.Calculate the followings: The pH of the final solution after adding 300 ml of 40 mM NaOH to 600 ml of 350 mM NaOH.If 10x TBE contains 0.89 M Tris-borate, 0.89 M Boric acid, and 0.02 M EDTA, what is the Molar concentration of Tris-borate in 100 ml of 1x TBE?