What is the temperature of the system
An aluminums container of mass 150 gm contains 250 gm of ice at -120C. Heat is added to the system at the rate of 420 joules per seconds. What is the temperature of the system after 3.5 minutes? Specific heat of aluminium = 840 J/(kgoC).
Expected delivery within 24 Hours
Consider the sodium sulfate/sodium bisulfate (Na2SO4/NaHSO4) buffeer system where Ka=1.1*10-2 for HSO4-. How Many grams of wach of these salts should you add to 1L of water in order to make the buffer pH=2.5?
A cannon is fired from the top of a castle wall. The cannonball is fired at a speed of 50 m/s and an angle of 30 degrees. A cannonnall that was accidently dropped from the top of the wall hits the moat in 1.5s. What is the balls maximim height abo
Compare the amount of .200 moles of KOH needed to neutralize 50 mL of .200 moles of HNO3 with the amount of .200 moles of KOH needed to neutralize 50 mL.
What is the core message?What is "The Spread" of the religion.Influential figures.
What responsibility do governments play in making general policies about such ethical issues as well as the issues of war and the use of torture during times of war?
A bag of potato chips contains 580 mL of air at 25°C and a pressure of 755 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 446 mm Hg and the temperature is 10°C?
What are the missing coefficients for the skeleton equation below?
Two boat landings are 1.0 km apart on the same bank of a stream that flows at 2.2 km/h. A motorboat makes the round trip between the two landings in 50 minutes. What is the speed of the boat relative to the water?
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