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(a). What is the trend in electronegativity going from left to right in a row of the periodic table? (b) How do electronegativity values generally vary going down a column in the periodic table? (c) How do periodic trends in electronegativity relate to those for ionization energy and electron affinity
Find the Ksp range for PbI2(s) (hint: you will need to apply the dilution formula to the concentration of Pb(NO3)2 and KI. Think about what you will need to find the Ksp and look for those pieces of information in the video.
It takes 49.0 J to raise the temperature of an 11.7 g piece of unknown metal from 13.0 C to 24.0 C. What is the specific heat for the metal?
What is the pH when 100 mL of 0.1 M NH3 is titrated with 50 mL of 0.2 M HCl? pKa of NH4Br is 9.25.
How will the melting point of your semicarbazone derivative be affected if the derivative is not dry enough
What is the percentage purity of your ldh column fraction? 2. How many total mg of ldh are there in your column fraction?
A 0.2 036 g sample containing only BaCl 2 and NaCl is dissolved in 5 0.0 mL of distilled water. Titration wi th 0.1410 M AgNO 3 requires 19.46 mL to reach the endpoint
Calculate the concentration of HC2H3O2 or NH3 in each of the solutions you measured. By how many units did the pH of a solution of a weak base or acid
a) What is the structure of biacetyl? b) Indicate the hybridization of each carbon atom. c) How many pi bonds are present? d) Do the four carbon atoms lie in a plane or do they lie in a straight line?
Define a genetic mutation and state the type of genetic mutation. Discuss the effects of genetics mutation
Butane (C4H10) reacts with oxygen in the air to from carbon dioxide and water. how many moles of carbon dioxide can be formed from 1.25 mol of butane and excess oxygen?
If oxygen gas is collected over water at 60 degree C and 1.10 atm, what is the partial pressure of the O2?
What information is obtained from the partition function? How is the partition function used to calculate state functions u, s, and a
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