A water sample is measured to have alkalinity of 130 mgl as
A water sample is measured to have alkalinity of 130 mg/L as CaCO3 at pH=9.2, what are the concentrations of the three carbonate species?
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Influenced by the gravitational pull of a distant star, the velocity of an asteroid changes from from +21.0 km/s to ?17.8 km/s, What is the total change in the asteroid's velocity
A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. What is the alkalinity of this water (in meq/L)? Does the answer make sense, why or why not
Suppose a competitive firm produces spaghetti dinners. The market price of a spaghetti dinner is $20. The cost of making the dinners is given by C(Q) = 10Q + (Q2/160). The marginal cost is given by MC = 10 + (Q/80).
Three equal positive charges Q are each fixed at a corner of an equiliateral triangle of side length a, Draw a free body diagram for the negative charge, Find the magnitudes of the net force on the negative charge
A water sample is measured to have alkalinity of 130 mg/L as CaCO3 at pH=9.2, what are the concentrations of the three carbonate species
The lathe will cost $10,000. and will produce an annual income of $2,500 per year throughout its lifetime. It is anticipated that the cost of removal of the lathe will exceed its value as scrap at the end of the useful life of $2,500.
Calculate the equilibrium constant at 0c and at 50c(assuming enthalpies of formation are independent of temp)
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A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. Now, we add sodium hydroxide (NaOH, strong base) until the pH reaches 7. You can neglect any changes in volume. What is the alkalini
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