What is the concentration of ammonium ion
a) What is the concentration of Ba(OH)2 in aBa(OH)2 solution if the pH is 8.25?
b) What is the concentration of ammonium ion that must be in a0.15 M NH3 solution to produce a buffer of pH =8.0?
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Estimate the machining time that will be required to finish a vertical flat surface of length 100 mm and depth 20 mm by an 8 teeth HSS end mill cutter of 32 mm diameter and 60 mm length in a milling machine.
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What is the concentration of Ba(OH)2 in aBa(OH)2 solution if the pH is 8.25? What is the concentration of ammonium ion that must be in a0.15 M NH3 solution to produce a buffer of pH =8.0?
A wave travels along a string at a speed of 280 m/s. What will be the speed if the string is replaced by one made of the same material and under the same tension but having twice the radius?
Magnesium sulfate, MgSO4, is added to 469 mL of 0.040 Msodium hydroxide, NaOH, until a precipitate just forms. How many grams of magnesium sulfate were added?
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