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No electrons are emitted from the surface of metallic Cs until the frequency of the radiation reaches 4.50 x 10^16 Hz. Find the energy required to remove the electron from the metal surface.
130 mL of an HCl solution with pH of 3.90 is added to 200 mL of an HNO3 solution. The resulting solution is 1.40 mL. What was the pH of the original HNO3 solution?
The average concentration of bromide ion in sea water is 65 mg of bromide per kg of sea water. What is the bromide molarity if the density of seawater is 1.025 g/ml
what is the molarity of a KOH solution if 50 mL is neutralized by 17.3 mL of a .150 M H2SO4 solution
Gas tank holds 42kg of gasoline. When gasoline burns, 147kg og oxygen are consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
Draw a diagram depicting the electron transitions that occurred to produce these emissions. Explain why your results (2) indicate that the electron behavior of atoms of elements with more than one electron is not well described by equation 1, if Bo..
If your absent minded lab partner spilled deionized water into your NaOH solution, diluting it, would the Ka value you determine for the solid weak acid be greater than
What is delta H for the following reaction? Mg + 2HCl -> MgCl2 + H2 if 0.158 g Mg reacts in 100.0 mL of solution and changes the temperature from 25.6 °C to 32.8 °C
it is given that the bond length of hi 161pm.nbspcompute the moment of inertia of the molecule in kg m2. and also
C6H5CO2H(aq) + OH-(aq) C6H5CO2-(aq) + H2O() What are the concentrations of the following ions at the equivalence point? Na+, H3O+, OH- C6H5CO2- M Na+ M H3O+ M OH- M C6H5CO2- What is the pH of the solution
draw a dot and cross diagram to show the bonding in ch2f2. your diagram only needs to show the outer shell
Draw the Lewis structure for NOF. Nitrogen is the central atom. Include all lone pairs of electrons.
what type of salt does copper oxide produce?
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