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Compute the sulfide-ion concentration of a 0.5 F HC2H3O2 solution ribich has
been saturated with H2S at 25°C.
Calculate the sulfide-ion concentration of a 0.5 F HCl solution which has been
saturated with H2S at 25°C.
If 20 ml of 3 F NH3, and 5 g of (NH4) 2SO4 are added to 200 ml of water, what
is the hydroxide-ion concentration of the resulting solution? Calculate the pOH of
the solution.
If 50 ml of 0.3 F HAc is mixed with 100 ml of 0.1 F KOH, what is the hydronium-ion concentration of the resulting solution?
What is the pH of the solution?
If 3 g of ammonium chloride and 2 g of ammonia are dissolved in sufficient
water to produce 500 ml of solution, calculate the hydroxide-ion concentration of the solution. What is the pH of the solution?
To 500 ml of 0.05 F H2S solution is added 50 ml of 3 F acetic acid solution. What is the sulfide ion concentration of the resulting solution?
Adam loves UNAM shandy which he makes by combining one glass of oshikandela and two scoops of ice cream. Eve is on the diet that assigns points to food and drinks. One glass of oshikandela is one point and one scoop of ice cream is one point. She can consume any combination of oshikandela and ice cream as long as the total number of points is two. (a) What type of goods are oshikandela and ice cream for Adam? Show his indifference curve on a graph. (b)What kind of goods are Oshikandela and ice cream for Eve? Show her indiffernce curve on a graph.
determine the magnitude and direction of electric field due to the point of 4.0 to the left of a point charge of -2.5nc
4. The following relations describe monthly demand and supply for a computer support ser-
vice catering to small businesses.
Q D = 3,000 - 10P
Q S = -1,000 + 10P
where Q is the number of businesses that need services and P is the monthly fee, in dollars.
a. At what average monthly fee would demand equal zero?
b. At what average monthly fee would supply equal zero?
c. Plot the supply and demand curves.
d. What is the equilibrium price/output level?
e. Suppose demand increases and leads to a new demand curve:
Q D = 3,500 - 10P
What is the effect on supply? What are the new equilibrium P and Q?
f. Suppose new suppliers enter the market due to the increase in demand so the new supply
curve is Q = –500 + 10 P. What are the new equilibrium price and equilibrium quantity?
g. Show these changes on the graph.
neutron stars are some of the densest objects in universe. The form during supernova explosions and very small compared to other astronomical objects you can assume 5*10¹⁷kg/m³ as the average density of a neutron star The earth has a total mass of about 5.97*10²⁴kg what would be the diameter of the earth if it had the density of a neutron star
#340153 on Dec 2023