Calorimeter and the mixture temperature stabilizes
A calorimeter contains 150g of water at 65 C. 45f of 5 C is added to the calorimeter and the mixture's temperature stabilizes. what is the final temperature?
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Calculate the heat of reaction in kJ. SiO2(s) + 4 HF(g) SiF4(g) + 2 H2O(l)
what volume of ethylene glycol, a nonelectrolyte, must be added to 15.0 Liters of water to produce an antifreeze solution with a freezing point of - 30 degrees celcius?
Hydrofluoric acid (HF) has a Ka value of 7.2 × 10¯ 4. 0.250 mol of F¯ ions (in the form of NaF) are added to 1.00 L of 0.100 mol L¯ 1 aqueous HF. Calculate the resulting pH.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 57.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 255.0 mL of solution. What is the molarity of the ethanol in this solution?
A physician wrote a prescription for Tylenol 325 mg/5mL with codeine 10 mg/5mL, 5mL three times a day for 4 days as needed for cough. How much Tylenol in milligrams is contained in a teaspoonful?
What is the density of a block of marble that occupies 253 cm3 and has a mass of 752 g?
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