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Astronaut Benny travels to Vega, the fifth brightest star in the night sky, leaving his 35.0-year-old sister Jenny behind on Earth. Benny travels with a speed of 0.9996 c, and Vega is 25.3 light-years from Earth.
A list of compiled anhydrous masses for Na2CO3, CaSO4, and MgSO4 and I have to find the molar ratio of these anhydrous masses. The compiled list is from every section of chemistry, Different masses for different dates for each of the anhydrates
Imagine that you have a 5.00L gas tank and a 4.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
The Group 5A elements N,P,As have lower (less negative) electron affinities than most of the Group 4A or Group 6A elements because N,P,As have half-filled subshells.
If 19.6 mL of the HCL solution is required to reach the stoichiometric point in the titration, what is the molar concentration of the HCL solution
container at a temperature of 47C exerts a pressure of 6.3 atm. Calculate the number of moles in the sample
Consider the reaction A? B Assuming ?G?f (A) = 8.066 kJ/mol and ?G?f (B)= 12.24 kJ/mol, what is the equilibrium constant for this reaction at 25 oC
Calculate the pH at equivalence point when 40.0 ml of 0.50 M aniline is titrated with 30.0 ml of 0.67 M HBr. For aniline Kb=3.8x10exp
The student ended up calculating that he/she has 2.19 ppm of Vitamin B2 in the diluted sample. Calculate the percent of the RDI of Riboflavin satisfied by consuming this tablet
1. compute the henrys law constant of air if the solubility of air in h2o is approximately 2.1 x 10-3 m at the
Include activity coefficients in your solubility-product expression. The Ksp of Hg2I2 is 4.6× 10-29.
When thermal equilibrium is reached, the temperature of the glass and the water is 29.9 "C. What is the specific heat capacity of the glass?
Treatment of A with zinc amalgam and HCl affords an optically active, dextrorotatory hydrocarbon C. Identify compounds A, B, and C, including stereochemical configurations. Be sure to explicitly draw H and both wedge/dash bonds at any configuratio..
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