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A hydrocarbon (contains only C and H) is burnt in air to produce CO2 and H2O. The number of moles of CO2 produced is 1.5 times the number of moles of H2O produced. What is the empirical formula of the hydrocarbon? If is molar mass is 120 g/mol, what is the molecular formula?
A. which element/ion is the most difficult to oxidize. 1. Ca 2. Li^+ 3. Li 4. Na^+ 5. Na B. which element/ion is the most resistant to reduction? 1. H2 2. CU^+2 3. Sn^+2 4. Pb 5. none of the above
What is the difference between a state and a microstate of a system? As a system goes from state A to state B, its entropy decreases What can you say about the number of microstates corresponding to each state?
Describe a simple and practical way to make 1.00L of this buffer solution, assuming 1.0 M solution of the molecular base is available and that the chloride salt of the conjugate acid is available as a SOLID.
NaOH solution to raise the PH of the waste stream to PH 10, determine the flow rate of NaOH solution in (Gal/min). Assume ideal solution conditions
What are the atoms that constitutes the peptide group?
Draw the estructures of benzoic acid and hydroxide ion, use electron pushing arrows to show how they react, and draw the structure of the products.
Calculate the radiation dosage (in grays) for an 85-kg person that is exposed for 7.0 seconds to a 3.0 Ci source of beta radiation. Assume that 100% of the radiation is absorbed and each beta particle has an energy of 1.7× 10-13 J.
Assume that you dissolve 10.7g of a mixture of NaOH and Ba(OH)2 in 229.5 mL of water and titrate with 1.49M hydrochloric acid. The titration is complete after 108.7 mL of the acid has been added.
Let's say you drive a car 1000 miles and you average 16.2 miles per gallon of gasoline assuming composition of gas is C8H18 what mass of carbon dioxide is produced as well as the density of gasoline is 0.8205 g/mL as well as there is 946 mL in a q..
A 0.7995 g sample of a compound containing only uranium and chloride is dissolved in water and excess aqueous silver nitrate is added to precipitate 0.9982 g of silver chloride . Calculate the empirical formula of the compound.
Give the structure of the sodium salt of methyl salicylate and in the second part of the experiment, what is the structure of the anionic form of salicylic acid before it is acidified with the dilute sulphuric acid?
Consider the following data showing the initial rate of a reaction (\rm A \rightarrow products) at several different concentrations of {\rm A}.
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