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Question- A piece of iron (mass = 25.0 g) at 398 K is placed in a Styrofoam coffee cup containing 25.0mL of water at 298 K. Assuming that no heat is lost to the cup or surroundings, what would the final temperature of the water be? The specific heat of iron is 0.449 J/g0C and water is 4.18 J/g0C.
Final Temperature= ______degreee celcius.
Explain each and every step in detail. I need proficient help in the above problems.
Adrenaline is a hormone released in response to physical and mental stress. A solution is prepared with 1.5g of adrenaline in 175g. of CCl4 (Tf= -22.3 degrees celcius and Kf = 29.8 C/m.) The freezing point of the solution was determined experiment..
What is the freezing point (°C) of a solution prepared by dissolving 11.3 g ofCa(NO3)2 (formula weight= 164 g/mol) in 115 g of water? Assume that i=3.00 for Ca(NO3)2 and the molal freezing point depression constant for water is1.86°C/m.
solid sodium react violently with water producing heat hydrogen gas and sodium hydroxide. how many molecules of
A balloonn containing a sample of Helium gas is warmed in an oven at constanst pressure. If the balloon measure 1.25 l at room temperature (20c), what is it volume at 98 c
Cis/trans isometry is graded -it may help to draw hydrogen atoms associated with the carbon atoms of the double bond
Describe the preparation of 1.5L of a 0.10M Ca(C2H3O2)2 solution. How many milliliters of the above solution would be needed to prepare 500mL of a 0.025M solution
calculate the vapor pressure lowering of water when 5.67 g of glucose c6h12o6 is dissolved in 25.2 g of water at 25
Explain how many liters of S03 (g) are produced at 25C and 1.0atm from the combustion of 1.0kg of coal which is 1.0%S by weight? Suppose all the sulfur in the coal ends up as S03.
For the compound MX, Ksp is 2.00 × 10-11. The anion X- forms the weak acid HX (Ka = 1.8 × 10-5). Calculate the solubility of MX in 10.00 M strong acid.
calculate the energy released as heat when a typical table sugar cube of mass 1.5g is burned in air. b.) to what height could you climb on the energy a table sugar cube provides assuming 25 percent of the energy is available for work
The amount of heat needed to raise the temperature of 25 g of a substance by 15°C is 915 J. What is the specific heat of the substance?
PH of Acetylsalicylic Acid, The active ingredient in aspirin is acetylsalicylic acid (HC9H7O4), a monoprotic acid with a Ka = 3.3x10-4
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