What fraction of initial concentration of compound remain
For the first irder reaction 2N2O5 --> 2N2 O4 + O2 at a particular temperature, the half - life of N2O5 is 0.90 hr . What fraction of the initial concentration of N2O5 will remain after 2.4 hours?
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A dilute solution of benzoic acid, C6H5COOH, is prepared by adding 7 mL of 1.85 M benzoic acid to a volumetric flask and adding enough water to bring the total volume of solution to 250 mL. What is the final concentration of the acid?
An atom has an electron with energy -9.00E-19 J. It absorbs a photon and moves to a new level with energy -4.00E-19 J. What is the wavelength of the photon in nm?
If 1.4 M H2SO4 is used to titrate a 300.0 mL solution of 1.76 M ammonia (NH3), what volume of acid is required to completely neutralize the base? Each mole of this strong diprotic acid produces two moles of hydronium ions in water.
Calculate the concentration of a solution prepared by adding enough water to 2.2 g of sucrose (C12H22O11) to make a total of 50 mL of solution.
Calculate the mass of HCl that is neutralized by 2 g of Mg(OH)2(s)
If Delta H = -80.0 kJ and Delta S = -0.300 kJ/K, the reaction is spontaneous below a certain temperature. Calculate that temperature.
What is the highest price, in terms of a rate per hour, that Brandilyn Toy Company should be willing to pay for additional capacity (that is, for added direct labor time)? (Do not round intermediate calculations.
A sample 50 mL solution of hydrochloric acid (HCl) is titrated with 0.11 M NaOH. The volume of base required to reach the equivalence point is measured to be 33.772 mL. What was the original concentration of the acid?
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Provide five (5) reasons why working from a person centred, strengths-based positive framework, and providing positive lifestyle strategies can reduce
Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.
Describe the results, including any scores. Result: E6% Extraverted Action oriented, Outgoing, Expressive, Hands-On S17% Sensing Traditional,
When Min decided to begin his supervised field experience, he applied at a company in his hometown that provided applied behavior analysis
What is another way to say ". It is important to ensure that the youth understand what the study involves, what their participation entails
Problem 1: Identify a specific theory of cognitive or moral development, and summarize the major assumptions.
In our readings, we learn more about the nature versus nurture argument. For this discussion, I want you to go in depth a bit more and debate the importance