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Phosphorus-32 decays by beta emission to form sulfur-32. How many half-lives have passed in the reaction shown here
How does "spartan student" work. Supposedly i have work "due" but I do not see how it is "due" and how my teacher will see my assignments if this is a program. Is my saved work able to be seen by my teacher.
Calculate the molar solubility of Mn(OH)2 in moles/L and in g/L. What would happen to the solubility of Mn(OH)2 when 0.02 M NaOH is added to the solution. Calculate the new solubility after the addition of NaOH.
1. Find the pH of a solution that has a concentration of hydrochloric acid equal to 0.001 M. 2. Find the normal pH of rainfall (not acid rain). Would a rain sample with a pH of 5.0 be considered "acid rain"
THe energy of a photon is 4.54 10-19 J. What is the wavelength of the corresponding light
a testing facility found that 8.351023 molecules of carbon dioxide were produced when a sample of octane was burned in
write a balanced equation for the reaction between the iodide ion, a peroxide, and the hydrogen ion.
The light sources were controls. How would the experiment be different if you used different light sources? Explain why it was not important to know the exact intensity of either light source.
What two predominant effects govern most chemical reactions and properties? What are the two major types of computational approaches used to model chemicals
Determine the volume of 0.M baryta (Barium hydroxide is the chemical compound with the formula Ba(OH) 2 ) that is needed to neutralize 35 ml of 0.2M phosphoric acid (H 3 PO 4 ), ?
Carbonyl fluoride, COF2 , is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride
Confirm whether an acid base reaction occurred stoichiometrically. The concentration of concentrated nitric acid is 15.8 M. For full credit show all calculations.
When 0.100 mol of toluene(C7H8(l)) is burned in this calorimeter, the temperature is raised by 0.615C. The equation for the combustion reaction is
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