Consider the system in which the mineral fluorite, CaF 2 , dissolves in water. The resulting...

Consider the system in which the mineral fluorite, CaF 2 , dissolves in water. The resulting
fluoride ion reacts with water to give HF. We are looking for the solubility of CaF 2 .
a. Write the pertinent chemical reactions. The hydrolysis of water is considered a
pertinent reaction in this system.
b. Write the charge balance. Include all of the charged species in all of the chemical
equations written above.
c. Write the mass balance.
d. Write the equilibrium expressions for each of the chemical reactions written above.
e. How many equations have you written? How many unknowns are there?
f. Solve the system of equations for the solubility of fluorite. It is not a simple
proposition to solve a system of five equations simultaneously. Consider what the
equilibrium system would look like if the pH were fixed at 3.00. Try solving the
equations now. It should now be a system of just three equations, which is much
easier.

Solutions

Expert Solution

queen_honey_blossom answered 3 months ago

Next > < Previous

Related Solutions

The main site of water and mineral absorption in the human digestive system is the Multiple...

The main site of water and mineral absorption in the human digestive system is the Multiple Choice rectum. stomach. esophagus. large intestine. small intestine.

The B&B mineral Water Company is proposing to market a high fiber mineral water beverage. The...

The B&B mineral Water Company is proposing to market a high fiber mineral water beverage. The product will be first test marketed for 3-years in various retirement communities in Florida at an initial (time zero) cost of $500,000. This test period is not expected to produce any profits, but will reveal consumer preferences. There is a 40% chance that demand will be good, a 30% chance that demand will be satisfactory, and a 30% chance that demand will be bad....

A.) What ions are formed when KCN dissolves in water? Identify the ion in KCN which...

A.) What ions are formed when KCN dissolves in water? Identify the ion in KCN which will hydrolyze. B.) Write the chemical equation showing the hydrolysis of this ion. Write the equilibrium constant expression for the hydrolysis of this ion.

Ca(OH)2 dissolves exothermically in water and the molar solubility of Ca(OH)2 decreased as the temperature increases....

Ca(OH)2 dissolves exothermically in water and the molar solubility of Ca(OH)2 decreased as the temperature increases. What are the signs of Delta H and Delta S for dissolving Ca(OH)2?

1. What happens when a strong acid suchas HBr dissolves in water? 2. What is the...

1. What happens when a strong acid suchas HBr dissolves in water? 2. What is the PH of a solution with [H+] of 3.6*10^-4? 3. A sample of urine has a pH 7.9. Is the sample acidic, basic, or neutral? What is the hydrogen ion concentration in the urine sample?

The Mineral Water Company sells bottled water for offices and homes. The price of the water...

The Mineral Water Company sells bottled water for offices and homes. The price of the water is $20 per 10 gallon bottle and the company currently sells 2000 bottles per day. Following are the company’s income and costs on a daily basis: Sales Revenue $40,000 Variable Cost $16,000 Fixed Cost $20,000 [Note: You can assume that variable costs are constant so that the average of them is also the unit variable cost.] The company is enjoying stable demand with its...

Oasis Inc. which produces water wants to analyze the mineral contents (gm) in the bottle of...

Oasis Inc. which produces water wants to analyze the mineral contents (gm) in the bottle of 1 liter water they produce. Especially, they are interested in identifying the magnesium contents, which is one of the most important minerals in the water. The quality control engineer at their production unit randomly selected 7 bottles and then measured the mineral contents in the samples. The results obtained from the samples are as shown in the table below: Sample# Magnesium weight (gm) 1...

Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2...

Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the equilibrium equation.The acid dissociation constants listed in most standard reference texts for carbonic acid actually apply to dissolved CO2. For a CO2 partial pressure of 3.2×10–4 bar in the atmosphere, what is the pH of water in equilibrium with the atmosphere? (For carbonic acid Ka1 = 4.46× 10–7 and Ka2 = 4.69× 10–11).

Consider a two-period model of mineral extraction with a 3% discount rate, in which the total...

Consider a two-period model of mineral extraction with a 3% discount rate, in which the total supply of minerals is fixed at 100. A social planner is trying to decide how much we should consume in each period (i.e. what the efficient consumption pattern would be). Q1 is our consumption in period 1; Q2 is our consumption in period 2. Prices (P1), marginal benefits (MB1), and marginal costs of extraction (MCE1) in period 1 are: P1 = MB1 = 80...

Consider a two-period model of mineral extraction with a 3% discount rate, in which the total...

Subjects