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Problem- If a 85.0 degrees celsius iron rod weighs 1.20kg was placed in 15.2L of water at 20.0 degrees celsius, what is the temperature of the mixture. (specific heat of iron= 0.450J/gK and density of water at 20.0 degrees celsius= 0.998234g/mL)
Describe your respond.
Ten kg of steam at 500 bar is expanded at constant pressure until its pressure increases to seven times its initial value of 0.01 m^3. (a) Determine the initial and final temperature of the steam. (b) Calculate the heat that must be supplied to ca..
Use the formula for ?G to find ?G for a reaction if ?G° = 7.27 kJ?/?mol, T = 282 K, R = 8.31 × 10?3 kJ?/?mol?•?K, and Q = 0.67. Also, tell whether the reaction will shift toward the products or reactants to reach equilibrium
Which compound remains in the ether and which compound moves to the aqueous NaOH? Provide the chemical reaction that occurred when NaOH was added. Show all lone pair electrons and formal charges. Clearly indicate the difference between an ionic bo..
85.0 of is initially at room temperature (22). A chilled steel rod at 2 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar?
The blank solution used to calibrate the spectrophotometer is 10.0mL of 0.2M Fe(NO3)3 diluted to 25.0mL with 0.1M HNO3. Why is this solution preferred to simply using de-ionized water for the calibration?
State if a compound had the formula KClO3, State list of the formula with charge of the anion and cation.
Calculate the osmotic pressure at 25°C of an aqueous solution of 1.00 g/L of a protein having molar mass=2.50×104 g/mol.
The ksp for Al(OH)3 is 1.9*10^-33. what is the pH of a sauturated solution of Al(OH)3. ignore any hydrolysis
Draw the procedure you expect to use to find out whether or not copper is present in your sample. Make sure to comprise the amounts of materials and all items you expect to use
If someone can go in depth into finding the Ka to this and then guiding me through the rest of the steps, I'd be eternally grateful
Carbon and silicon belong to the same group and are known to have similar properties. Do you think that silicon can replace the role that carbon plays
NaOH is added to 625 mL of 0.250 M weak acid (Ka = 5.62 × 10-5). What is the pH of the resulting buffer?
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