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Problem: A 5.70-g sample of iron is heated from 45.0°C to 75.0°C. The amount of energy required is 76.95 J. What is the specific heat capacity of this sample? Please provide the authentic solution of this problem.
If the relevant discount rate for the entire period is 10%. What is the present value (pv) of this cash flow stream?
To what pressure and temperature must one mole of Xe gas be raised in order for it to be in a state corresponding to 1.00 mol of Ar at 1.00 bar and 20.00 degrees
What mass of solar material is converted into energy each second to produce this much energy
Problem- You have constructed a quinhydrone concentration cell with buffers of pH = 5.5 and pH = 3.0 according to the following notation: C(s, graphite) | pH 5.5 buffer, quinhydrone || pH 3.0 buffer, quinhydrone | C (s, graphite). Using the Nernst..
If a patient suffering from a duodenal ulcer displays ahydrochloric acid (36.5 g/mol) concentration of 9.28 x10-3 M in his gastric juice and he produces 2.80 liters of gastric juice per day, explain how much medication(in mL) containing 2.60 g Al(..
if titration of 20.0 mL of 1.50 M H2SO4 solution requires 25.0 mL of NaOH to reach equivalence point, what is the molarity of the NaOH titrant
What is the molarity of a sodium chloride solution if 2.45 grams of NaCl is dissolved in 250 mLs of water? C. How many grams of solute are in 1.75 Liters of 0.460 M sodium monohydrogen phosphate
Question- A chemist with 4.0 moles of H2 and 4.0 moles of O2 in a 200.0 L container, and runs the combustion reaction very slowly. After 10.0 seconds there is 3.0 moles of H2. a) Write the balanced chemical reaction.
The value of deltaH for the reaction CH3OH (l)---->CO (g) +2H2 (g) is +128.1 kJ? How many kJ of heat are consumed when 5.10 g of CO (g) is formed as shown in the equation
Part A. You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the reading of 400. counts has diminished to 100. \rm counts after 93.1minutes , what is the half-life of this substan..
a compound of iodine and cesium contains 63.05 g of metal and 67.75 g of nonmetal. how many grams of cesium are in
Use the appropriate standard reduction potentials to calculate the value
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