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A 5.00g sample of liquid water at 25.0degree C is heated by adding 84.0J of energy. The specific heat of water is 4.28J/g*K. What is the final temp of the water in degree C?
Determine the change (deltaT/deltaP) in the freezing point of ice with increasing pressure. the molar volume of water is 18.02 cm3 mol^-1 and the molar volume of ice is 19.63 cm3 mol^-1. The molar heat of fusion deltaHfus =6.009 *10^3J mol^-1
A piece of iron weighing 85.690 g was burned in air. the mass of the iron oxide produced was 118.350 g. What are the moles of iron in the original sample
When doing a recrystallization, why is it important to allow the saturated solution to boil for ~1 minute and cool SLOWLY to room temperature before placing it in an ice-water bath?
At 710.mm hg a sample of nitrogen gas occiuped 625 ml.what volume does gas occupy if the temperature remains constant and the pressure increases to760.mm hg?
Discuss the probable reasons for the differences in flow patterns in a horizontal heated tube as compared to (i) vertical heated tube (ii) horizontal unheated tube?
If 435 grams of water at 23 celcius abssorbs 281 kJ of heat froma mountain climber's stove at an elevation where the boiling point of water is 87 celcius
typical industrial electrolysis cells can produce approximately 6kg of F2 in a 24 hours day. At what current (A) are these cells operating for this to be true
what is the chemical calculation to figure out the following: what mass of the indicated solute does the following solution contain: 17.8 ml of 0.119 M CaCl2
A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.570 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane to obtain water. Assume room temperature or ..
Give the formula of the conjugate base of each of the following. (Type your answer using the format CO2 for CO2, (NH4)2CO3 for (NH4)2CO3, [NH4]+ for NH4+, and [Ni(CN)4]2- for Ni(CN)42-.)
for the synthesis of potassium alum advantage is taken by the fact that aluminum hydroxide is amphoteric meaning it can
A 12.2-g sample of Helium gas has a pressure of 18.1 atm in a 7.82-L sealed container. What is the temperature of He(g)(R=08206 L atm K^-1 mol^-1)
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