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If an electric car is capable of going 240. km on a single charge, how many charges will it need to travel from Boston, Massachusetts to Miami, Florida, a distance of 1486 mi, assuming that the trip begins with a full charge?
explain why cis-1-chloro-4-t-butylcyclohexane reacts rapidly with sodium ethoxide while the trans-isomer react slowly
The volume of seawater on Earth is about 3.3 x 10^8 mi^3. Because it contains salts, mostly sodium chloride, its density is about 1.03 g/mL, a little higher than that of pure water. The concentration of sodium chloride is about 3.5% by mass.c
assuming no heat loss, and that the specific heat (capacity) of water is 4.184 J/g*K, what is the heat capacity of the copper in J/K?
In a fictitious lab experiment a class studied two acid base reactions and recorded the temperature change. class averages were reported 1) 30 ml of 3 molar hcl with 30 ml of 1.5 naoh change in temp was 12.2 +or - 1.3
Calculate the mass of ammonia formed when 6 g of hydrogen react with 14 g of nitrogen to form ammonia. You may use whole numbers for atomic masses.
After a disturbance, the system regains equilibrium with a total pressure of 2.0atm. What is the partial pressure of A at the new equilibrium
A 22.0 mL sample of vinegar, which is an aqueous solution of acetic acid, HC2H3O2 , requires 24.5 mL of 0.450 M NaOH to reach the endpoint in a titration. What is the molarity of the acetic acid solution
two mwthods were described for determining the volume of the flask used for the molar mass determination.
Calculate the hydronium ion concentration and the pH after the addition of .25mL of .10 M HCl to each one. What accounts for the difference in hydronium ion concentrations? Explain this based on equilibrium concepts.
What is the pH of a 2:1 mixture of H2PO4- to HPO42- at 0.005 M ionic strength. (See the table for the activity coefficients.)
Determine the empirical formula for a substance with the following composition
an unknown salt is either naf nacl or naocl.when 0.050 mol of the salt is dissolved in water for form 0.500 l of
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