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Problem- Explain why shielding is more effective by electrons in a shell or lower principal quantum number than by electrons having the same principal quantum numbers.
Explain the each step. Explain the process and each step.
The equilibrium vapor pressure of liquid hydrogen at 16 K is 0.213 bar. The standard (1 bar) boiling point is 20.3 K. Use the Clausius-Clapeyron equation to estimate the enthalpy of vaporization of hydrogen
Hsolution for neutralization of HCl(aq) and NaOH(aq): Volume of HCl: 0.050 L Volume of NaOH: 0.050 L Volume total: 0.10 L Molarity of HCl: 1.99 M Molarity of NaOH: 1.99 M ?T for reaction B: 12°C Calculate the value (calories) for the heat of react..
Carry out the following operations, and express the answer with the appropriate number of significant figures. a) 320.5 - (6104.5/2.3) b) [(285.3 x 10^5) - (1200 x 10^3)] x 2.8954
Question- Write the balanced equation for the reduction of 2,6 dimethylnitrobenzene to give 2,6-dimethylaniline using stannous chloride, snCl2 in concentrated hydrochloric acid
Which of the following describes what happens to the solubility of a slightly soluble ionic compound when a common ion is added to the solution
Calculate the new freezing point for a 0.61 m solution of CCl4 in benzene. 2) Calculate the increase in the boiling point, Î"T, for a 1.94 m solution of sucrose (dissolves as a molecule) in water
What is the fraction of NTA present after HT2- has been brought to equilibrium with solid PbCO3 at pH 7.00, in a medium in which [HCO3-] = 1.00E-3 M?
What is the formula for the compound formed between iodine with a valency of (VII) and fluorine
Give the balanced equation for the reaction- exothermic formation of 1 mol of sodium chloride from its elements
A mixture of Ar and N2 gases has a density of 1.416 at STP. What is the mole fraction of each gas?
calculate the minimum volume of 1.00M HCL required to react completely with 5.00g of Ca ?
calamine lotion contains a mixture of both zinc and iron oxides. a 1.022 g sample of dried calamine was dissolved in
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