Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
a) If the electron in a hydrogen atom undergoes a transition from an n = 6 level to an n = 4 level, what is the wavelength of the radiation emitted? Give your answer accurate to three significant figures.
b) What is the longest wavelength of light that can be emitted by a hydrogen atom that has an initial configuration of 7p1? Give your answer accurate to three significant figures.
Determine the value of pH of given solutions that are (a) a solution that is 0.40 M CH3CO2H, (b) a 0.40 M CH3CO2H solution, (c) 0.20 M NaCH3CO2. And explain your answer too?
The hydrogen gas formed in a chemical reaction is collected over water at 30 at a total pressure of 727 .What is the partial pressure of the hydrogen gas collected in this way
imagine that you have a 7.00 gas tank and a 2.50 gas tank. you need to fill one tank with oxygen and the other with
constant- pressure calorimeter containing 80 g of water at 24.3 C. the final temperature of the system was found to be 28.8 C. Calculate the amount of heat that flowed into the water.
When 0.941 mol of gaseous HI is sealed in a 1.00-L flask at 225°C, it decomposes until the equilibrium amount of I2 present is 0.171 mol: 2HI(g) ? H2(g) + I2(g) Use these data to calculate Keq for this reaction at 225°C
A beaker with 100 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 8.60 mL of a 0.380 HCl solution to the beaker. How much will the pH c..
determine the solubility of co2 in soda water at 25degc if the pressure of co2 is 5.2 atm. the henrys law constant for
calculate the change in entropy that occurs when 17.10 g of ice at -13.8degc is placed in 54.05 g of water at 100.0degc
what is the concentration in the solution of the first ion when the second one starts to precipitate at 25 C?
Consider the following reaction at constant P. Use the information here to determine the value of Delta-Ssurr at 398 K. Predict whether or not this reaction will be spontaneous at this temperature
Suppose you were instructed to add 38 g of sodium chloride (NaCl) to 100 mL of water. a. prepared as instructed at 20°C b. heated the mixture in (a) to 100°C. Describe what you would observe under the following conditions.
Chlorine forms a number of oxides with the following oxidation numbers: +1,+3,+4,+6 &+7.Write formula for each of these compounds.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd