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A gold bar weighing 33.5g and having an initial temperature of 25.0 degrees Celsius, absorbs 5,000 joules of heat. What would be its new temperature?
Approach the tank slowly and carefully carrying full face mask with portable oxygen. The characteristic odor will be evident if leaking then put on the PPE.
A 0.1276 g sample of a monoprotic acid (molar mass=1.10 x 10^2) was dissolved in 25 mL of water and titrated with 0.0633 M NaOH. After 10 mL of base had been added, the pH was determined to be 5.57. What is the Ka for the acid
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Al3+(aq) + 3Na(s) ---->Al(s) +3Na+(aq) 3Fe2+(aq)+2Cr(s)---->3Fe(s)+2Cr3+(aq) Zn2+(aq) + Sn(s)---->Zn(s) + Sn2+(aq)
A current of 3.87 A is passed through a Cr(NO3)2 solution for 1.10 hours. How much chromium is plated out of the solution? in (g)
There are significant differences between Bacteria and Eukaryotes in the manner in which genetic information becomes functional gene product
similarly, what happens if cellulose is reacted with maleic anhydride C4H2O3? Again, how is the cellulose molecule/structure altered and what are the reaction by-products?
Consider the reaction between 15 mL of a 1.00 M aqueous solution of AgNO3 and 10 mL of a 1 M aqueous solution of K2CrO4. When these react, a precipitate is observed. What is present in solution after the reaction is complete
The original concentration of Glucose-6-phosphate is 0.25 M, but when the system reaches equilibrium, only 2.5% of the original glucose-6-phosphate remains. calculate the Keq.
Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4°C is 227.7 mmHg.
A rigid container of O2 has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K?
the advantages and disadvantages of using methanol, ethanol and water as a solvent for reactions with sodium borohydride?
This wavelength is in the x-ray region of the electromagnetic spectrum. The purple dot is a representation of the x-rays hitting the video camera. Change the Electric Field and Magnetic Field to determine the effect on the x-rays. Did the electric..
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