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Why is it not possible to measure the reduction potential of a half-reaction independently; that is, why must one half-reaction always be couple with another half-reaction to generate a measurable voltage?
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What is the ph in a solution made by mixing 60.0ml of 0.0120 Ba(OH)2 with 20.0 mL of 0.0500M acetic acid?
What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution of NaOH by mass? The density of the 10.0% solution is 1.109 g/mL.
A student weighed out 1.74 grams of sodium hydroxide pellets and added them to 48.0 grams of water in a calorimeter. Extrapolating back to the time of mixing yielded a temperature change at the time of mixing equal to 9. ...
How many grams of nitrogen are found in 50.0 grams of potassium nitrate?
Calculate volume in milliliters of a 1.96 mol/L calcium bromide solution that contains 275. mmol of calcium bromide CaBr2. Round your answer to 3 significant digits.
How do the colors seen by the naked eye compare to the emission spectra emitted by the flame
1. A beaker contains a clear, colorless liquid. It has three chemical substances in it, two are liquid and one of them is a solid. How could you determine if it has water, ethanol, and table salt? Remember you're not all ...
Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate. What is the chemical formula of copper (II) sulfate?
Calculate the number of moles of barium chloride in 427g of a 3.17% by mass barium chloride solution?
This experiment involves collecting data for the cooling of water between 175 o -160. o F in different containers. What is 175 o F in celsius? Please report your answer correctly to three significant digits.
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