What is the ph of the solution after koh has been added
a 150 ml buffer solution containing 0.100 M hydrocyanic acid (HCN ka=6.2 x 10^-10) and .100 M soudium cyanide (NaCN) has 30.0 mL of .120 M KOH added to it. What is the pH of the solution after the KOH has been added?
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Which is amajor source of air pollution and a substantialcontributor to acid rain. What mass of Fe2O3 is produced from 85 L of oxygen at 3.73 atm and 143 C with an excess of iron pyrite?
Hydrochloric acid reacts with aluminum to form aluminum chloride and gseous hydrogen. What's the mass of aluminum required to produce 1.0kg of aluminum chloride if there is excess acid?
A piece of metal with a mass of 151 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 35 mL. What is the density of the metal?
What is the molecular mass of vanilla (c8 h8 03)?
Calculate the amount of heat required to completely sublime 34.0g of solid dry ice at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3KJ/mol .
using percent yield, how many grams of Aluminium must be used to react with an excess of hydrogen phosphate to produce 35.8g of aluminum phosphate?
Suppose you wanted to heat a mug of water (250 mL) from room temperature 25 C to 100 C to make a cup of tea. How much energy (in units of calories and joules) would you need from your microwave?
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
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Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
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Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
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