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Hydrogen gas was cooled from 100 degrees celsius to 10 degrees Celsius. It's new volume is 750 mL. What was the original volume?
A buffer solution contains 0.5 M HA pka=8 and 0.25M NaA. What is the pH after 0.1 mol of HCL is added to this solution, giving a total final volume of 2L
Problem- For each compound draw an appropriate Lewis structure, determine the molecular geometry using VSEPR theory, determine whether the molecule is polar and identify the hybridization of all interior atoms: H3CSH
Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation. If 15.1 kilograms of Al2O3(s), 58.4 kilograms of NaOH(l), and 58.4 kilograms of HF(g) react completely, how many kilogr..
The nuclear mass of 48Ti is 47.9359 amu. Calculate the binding energy per nucleon for 48Ti.
The electron configuration of the outermost electrons of the alkaline earth metals can be represented by a. ns1 b. ns2
at 25 degree c the vapor pressure of pure water is 23.76 mmhg and that of seawater is 22.9 mmhg. assuming that
The first three reactions of the b oxidation pathway are similar to three reactions in the Kreb's cycle. Which three and why are they similar
Question- After the system below reaches equilibrium at 472 o C, it is found t hat the mixture consists of 7.42 atm H 2, 2.53 atm N 2, and 0.160 atm NH 3. From these data, calculate K p and K c for the reaction at this temperature.
Calculate the entropy of fusion of a compound at 20 oC given that enthalpy of fusion is 45 kJ/mol at its melting point of 162 oC and Cp of liquid
suppose that 1.431 g of impure baoh2 is dissolved in enough water to produce 196 ml of solution and that 39.5 ml of
Which molecule has only 90° and 180° bond angles and one lone pair of electrons on the central atom. XeF4 SeF4 BCl3 ClF5
State the polarities of each compound from most polar to least polar- Fluorene, Fluorenone, Hexane, Dichloromethane, Alumina. Define how to figure out which is more polar for points.
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