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When taking a boiling point of a compound, why is the micro boiling point determined at the point when the last bubble has left the bottom of the bell and the liquid begins to rise in the bell
How many grams of magnesium chloride are needed to react completely with 66.0 mL of 0.189 M NaOH solution
when liquid water is put into an evacuated vessel at 25 celsius what is the sign of the change in enthalpy, entropy, free energy, and temperature for the system during this process?
Calculate delta S for the heating of 1 mole of SO2(g) from 75°C to 1350°C at a constant pressure of 1 bar.
Question1. Describe the movement of gas particles. ; Question2. Compare the shape and volume of a solid and a gas.; Question3. Gases are easily compressed.
Celsius is allowed to expand into an evacuated vessel of 2.50 L volume. Does the gas do work? Explain
A current of 5.64 A is pass through a Ni(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 8.80 g of nickel
if you burn 51.8 g of hydrogen and produce 463g of water, how much oxygen reacted?
The solubility product of PbBr2 is 8.9 10-6. Determine the molar solubility in the following. (a) pure water
How many milliliters of a stock solution of 10.0 M HNO_3 would you have to use to prepare 0.320 L of 0.550 M HNO_3?
Phosphoric acid can be prepared by reaction of sulfuric acid with "phosphate rock" according to the equation: Ca3(PO4)2+3H2SO4 ---> 3CaSO4 + 2H3PO4 What is the molar mass of Ca3(PO4)2?
Consider the following reaction: 2 B5H9 + 12 O2 => 5 B2O3 + 9 H2O How many molecules of B2O3 are made by the reaction of 164.9 g of B5H9
The acid dissociaton constant Ka, for nitrous acd is 4.4x10^-4, what is the basicity constant Kb for the conjugaed base, nitrite, NO2-? HNO2+H20 H3O+ +NO2-
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