Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Determine the final temperature when at 20.0 degrees Celsius the 25.0ml of warm water at 80.0 degrees Celsius is added to 50.ml of cooler water.
What will it volume be at STP? A gas at 25.80 degrees Celsius and a pressure of 750mmhg occupies a volume of 400.0ml.
Determine the difference in populations of 119Sn spins in a magnetic field of 9.4 Tesla at room temperature?
Determine the H-C and C-N bond lengths from these data. The rotational spectrum of the HCN shows absorption at the 88631.62 MHz and that of DCN at 72414.61 MHz.
Determine the degeneracy of the level that has energy 7 times the energy of the lowest excited level and explain the quantum numbers for each of the states. Consider a particle in a cubic box.
Assume that 50.0 mL of 0.400 M HCl and 100.0 mL of 0.200 M CsOH are mixed in a calorimeter. The final temperature after the reaction is 24.28 degrees C and the solutions start out at 22.50 degrees C
The solutions start out at 22.50 degrees C, and the densities of the solutions are all 1.00 g/mL and the final temperature after the reaction is 24.28 degrees C, and the specific heat of the mixture
At 200°C the 5.0 moles of PCl5 are placed in a 10.0 L flask and allowed to come to equilibrium. Analysis shows that the 1.0 mole of Cl2 is present in the equilibrium mixture. Determine t
What fraction of the sample will still be radon-222 after 1 week? A sample of radioactive radon-222 was found to have a half-life of 3.823 d. Suppose the radioactive decay to follow the first-order
At 60.51 degree C a coffee-cup calorimeter contains the 50.0g of water. A 12.4 g piece of graphite at 24.21 degree C is placed in the calorimeter.
Each block has a heat capacity of 1000JK-1. One block is initially at a temperature of 25C the other is at 75C after Theydon to thermal equilibrium, to iron blocks of equal mass are brought into the
An infant is packed in 1250 g of ice to reduce a fever, if the ice at 0C melt and warm to body temperature(37.0C) discuss how much heat in joules is absorbed?
The equilibrium constant at 2500 K is 3.6 ×10-3. The experiment in Exercise 12.39 was redesigned with the 0.15 mole each of N2 andO2 were injected into a 1.0-L container at 2500 K.
State the hardness of water in terms of mg CaCO3/L (FM for CaCO3 = 100.09) Suppose you collected a water sample from your kitchen faucet which is having the 3.2mM Ca2+ + 1.1mM Mg2+.
Determine the equilibrium concentration of ammonia, if[H2] =1.2 × 10-2 molL-1 and[N2]= 3.2 ×10-3 molL-1. The equilibrium constant for the reaction, 3H2(g) +N2(g) ↔ 2NH3(g), at a gi
Explain what conversation factor will enable you to determine the number of moles of ClO- ions from the number of moles of S2O32- ions used in the titration?
Calculate the central atom electronic geometry for SO2 andCO3-2 and determine the regions of electron density. Discuss in detail.
Determine the numbers of kJ would it take to breakdown the nucleus of Ni-58? Explain the answers thoroughly as well as all the necessary steps arriving at the answers.
A student at a temperature of 0 degrees C adds the 25.0 g of NaCl crystals to a mixture of 25 mL of ice water in a coffee cup calorimeter.
Explain why H2O has an H - O - H bond angle of 104.5o while CH4 has a H - C- H bond angle of 109.5o. Write down the Lewis structures for the following none of which obey the octet ru
Compute the sulfuric acid molecule, H2SO4. The sulfur atom is the central atom in this molecule, with the oxygen atoms attached to it. The Hydrogen atoms are then attached to two of the oxygen atoms
If the reaction has a rate constant k at 25 degree Celsius, explain how will the rate constant be modified at 60 degree Celsius. Consider an elementary reaction with activation energy of 1000
Find out the pressure if the volume of the container is maintained the constant and the temperature is raised to 379C when a sample of nitrogen gas in a 1.57-L container exerts a pressure of 1
The equilibrium constant of the reaction of Cl2(g) with PCl3(g) at a particular temperature to form the PCl5(g) is 50. What are the equilibrium concentrations of all species if the initial concentr
A sample which is having a 3.00 g of SO2(g) originally in a 5.00L vessel at 21 degree Celsius is transferred to a 10.0L vessel at 26 degree Celsius and a sample which is having the 2.35 g N2(g) orig