What is the molality of ethanol in a solution prepared
What is the molality of ethanol in a solution prepared by dissolving 5.00 mL of ethanol (C2H5OH, of density 0.800 grams/mL) in 25.0 mL of water (H2O, of density 1.000 grams/mL)?
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225 kg sample of tin initially at 97.5 is dropped into .115 kg of water initially at 10.0°C. If the specific heat capacity of tin is 230 J/kg x °C, what is the final equilibrium temperature of the tin-water mixture?
How can educational professionals overcome the problem of curriculum match in the diagnostic assessment of mathematical competence?
What is relative amount of electric energy that will need to be used in both cases to cool a can of water (330 ml) from room temperature to +8 oC? Assume ideal operation of both systems.
A metal bar 1.6m long at room temperature,21c the bar is put into an oven and heated to a temperature of 84c.It is then measured and found to be 1.7mm longer. What is the coefficient of linear expansion of this material?
Determine the frequency of the coil's rotation when the peak emf of the generator is 163 V?
What could be the possible sources of error for this experimental outcome?be specific and give at least two possible reasons.
Explaining the benefits of exercise on the brain and what happens to a brain in distress. Emphasize the sensory motor and chemical functions of the brain and how it impacts learning?
What amount of hydrogen peroxide should result when 1.51 g of calcium peroxide is treated with 23.4 mL of hydrochloric acid solution containing 0.0458 g of HCl per mL?
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