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Individual bonds in a molecule are often polar, molecules as a whole also often are polar because of the ne tsum of individual bond polarities. Which of the following molecules is/are polar? SF4, CCl4, C2H2.
formic acid is titrated with 0.50 M sodium hydroxide, calculate the pH before any of the titrant (NaOH solution) is added and after 15.0 mL of the titrant has been added.
The perovskite structure is common for mixed metal oxides and halides. In this structure A and B are cations of different sizes and X is either an oxide or halide. the structure is built up of a simple cube of A cations with anions in the center o..
Describe the development of the modern periodic table. Include contributions made by Lavoisier, Newlands, Mendeleev, and Moseley.
Arrange the following ions in order of increasing split between the t2g and eg sets of d orbitals- that is, in order of increasing delta o.
At room temp, triphenylaluminum is a dimer while triphenyl boron is a monomer.
If the sign for delta G is negative (spontaneous process) and the sign for delta S is positive (more disorder) for both dissolving processes, how could one be endothermic (positive delta H) and one be exothermic
what is the molarity of a KOH solution if 50 mL is neutralized by 17.3 mL of a .150 M H2SO4 solution
Write a balanced reaction for the acid-base reaction of diethylbenzyl phosphonate with sodium hydroxide. Which hydrogens are the most acidic?
a 93 L sample of dry air cools from 145 degrees C to -22 degrees C while the pressure is maintained at 2.85 atm. what is the final pressure?
What are the mole fractions of each component in a mixture of 5.10 g of O2, 7.44 g of N2, and 1.26 g of H2. O2 N2 H2 (b) What is the partial pressure in atm of each component of this mixture if it is held in a 13.70-L vessel at 12°C O2 atm N2 atm ..
the curie ci is a commonly used unit for measuring nuclear radioactivity 1 curie of radiation is equal to 3.7 1010
Carbon monoxide and oxygen both can bind to hemoglobin, an important molecule for oxygen transfer in our body. In addition, they compete in binding to this same molecule
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