Sodium sulfate is a salt formed from a strong base (NaOH) and a strong acid (H2SO4). The ionization of both the cation (Na+) and anion (SO42-) in solution does not significantly affect the pH, resulting in a neutral solution.
3862
What happens to the solution when pH is less than 7?
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3863
A 5 percent (w/w) sugar solution means that 5 g of sugar is dissolved in ________ g of water.
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3864
How many moles of negative and positive ions are produced when 0.5 mole of phosphoric acid is dissolved in an aqueous solution?
When phosphoric acid (H3PO4) is dissolved in water, it dissociates into 3 hydrogen ions (H+) and 1 phosphate ion (PO43-). This results in a total of 4 ions for every mole of phosphoric acid, hence 0.5 mole will produce 2 moles of ions.
3865
Identify the metals which can be extracted by cyanide process
Cyanide process, also called Macarthur-forrest Process, method of extracting silver and gold from their ores by dissolving them in a dilute solution of sodium cyanide or potassium cyanide.
3866
A solution that contains large amount of dissolved solute is called:
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3867
Which of the following substances can be considered a buffer solution?
A buffer solution is a substance that effectively resists changes in pH when small amounts of weak acids or their conjugate bases or weak bases and their conjugate acids are added. Blood is an example of a buffer solution because it contains components like hemoglobin, which combine the properties of a buffer. The other options, brine, glue, and solution of CuSO4, don't meet the criteria for being buffer solutions in the same way that blood does.
3868
When Sodium reacts with water to form sodium hydroxide, the physical state of sodium hydroxide is
Sodium metal reacts rapidly with water to form a colourless solution of sodium hydroxide (NaOH) and hydrogen gas (H2). The resulting solution is basic because of the dissolved hydroxide. The reaction is exothermic.
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