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Three balloons filled with three different gaseous compounds each have a volume of 22.4 L at STP. Would these balloons have the same mass or contain the same number of molecules? Explain.
How many resonance structures does HSO4- have. The way I've been doing it would make it 12 but that seems like it'd be too many.
a 260-rm ml flask contains pure helium at a pressure of 759 rm torr. a second flask with a volume of 470 rm ml contains
a sample of 4.0 mole O2 is originally confined to 20 L at 270 K and then undergoes adiabatic expansion against a constant pressure of 600 torr until the volume has tripled. calculate q, w, delta T, delta U and delta H
How many moles of electrons are required to produce 90.5 g of lithium metal from a sample of molten lithium chloride
The element is so highly unstable that no observations of its properties have been possible. Based on its position in the periodic table, propose two different reasonable valence electron configurations for this element.
Think back to what you learned in this course about solutions and intermolecular forces. Why don't these to "mix" together (in other words, make a homogenous solution) when combined. Why do they separate into layers
The inital temp of the water was 25.2 degree c. At equilibrium the temp of the water and metal was 30.4 degreec -what was the change of temperature in the water
Propose a structure for an amine of formula C4H9N, which liberates a gas when treated with NaNO2 and HCl. The 13C NMR spectrum is as follows, with attached protons in parentheses
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
Explain why the major product that results from the synthesis of an azo dye corresponds to addition of the arene to the distal nitrogen of benzenediazonium.
If 28 mL of a .537 M NaOH solution is needed to neturalize 20 mL of a carbonic acid (H2CO3) solution, what is the molarity of the carbonic acid? (Write a balanced chemical reaction first.)
The equation for the Beers Law- A= -log10 I/Io. Tell what each variable represents.
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