question 1. Potassium bromide is used as an anti-seizure medication for dogs. Calculate the amount concentration of 8 2. 5 10 mol 2 # - of KBr in...
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question 1. Potassium bromide is used as an anti-seizure medication

for dogs. Calculate the amount concentration of 8 2. 5 10 mol 2 # - of KBr in 45.0 mL of solution.

question 2. Sodium sulfate is a compound used in many soap or detergent products. Calculate the number of moles of solute needed to make 85.0 mL of 2.22 mol/L sodium sulfate solution.


question 3.What volume of distilled water must be added to 105.0 mL of 0.600 mol/L hydrofluoric acid solution to dilute it to a concentration of 0.400 mol/L?


question 4.A Chemistry 20 student is provided with two sodium carbonate solutions for a laboratory activity. Solution A has a concentration of 3.48 10 ppm 3 # and Solution B has a concentration of 0.46% W/W. Which solution is more concentrated?


question 5. How many moles of anions are present in 2.00 L of 0.320 mol/L solution of scandium nitrate?


question 6. A cup of 125 mL of reasonably strong Twinings English Breakfast™ tea has approximately 110 mg of caffeine. Expressed as parts per million, what is the concentration of caffeine in this tea?


question 7. The process of cellular respiration is the pathway that most organisms utilize to metabolize glucose as an energy source. Calculate the mass of pure glucose contained in a 60.0 kg tank that is a 5.0% by mass glucose solution.

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