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Choose four salts from the list below as well as indicate whether an aqueous solution of the salt would be expected to be acidic or basic. State an equation for each salt showing how you reached your conclusion.
Sodium carbonate, potassium fluoride, ammonium nitrate, potassium acetate, sodium borate, methylammonium chloride ( CH3NH3Cl), potassium cyanide, sodium benzoate(NaC6H5CO2)
What is the maximum body accumulation of methylmercury at a constant ingestion rate of 4 mg of mercury per day?
Predict whether the entropy change in the system is positive, negative or close to zero for each of the following processes
how many phospholipid molecules with an area of 8 x 10-19 m2 are needed to make the cell membrane for a cell of 10um
silver (I) perchlorate into a 50.ml volumetric flask and filling the flask to the mark with water. calculate the concentration in mol/L of the silver (I) perchlorate soluation
The solution contains twice as many moles of dissolved NaCl as dissolved mgso4, and three times as many moles of LiCl as NaCl. These are the only solutes. what masses of NaCl, MgSO4, and LiCl are contained in 7500 kg of this solution
If a pure R isomer has a specific rotation of -120.0 degrees, and a sample contains 81.0% of the R isomer and 19% of its enantiomer, what is the observed specific rotation of the mixture
The voltage across the leads of a glass pH-reference combination electrode immersed in a solution of pH 8.00 was 133 mV. Calculate the expected voltage if the pH of the solution is raised to 9.00
Tartaric acid, which occurs in many fruits, has a molar mass of 150.1 g/mol and contains 63.96% oxygen by mass. How many oxygen atoms are in each tartaric acid molecules.
A volume of 125 mL of H2O is initially at room temperature (22.0*C). A chilled steel rod at 2.00 *C is placed in the water. If the final temperature of the system is 21.1*C, what is the mass of the steel bar?
what is the number of valence electrons for nh4+ and what is the lewis structure for that molecule. and how many remaining electrons are there and how do you find the formal charge.
What volume of gas should you collect at 25 degree celsius and 1.00 atm in order to achieve the desired pressure in the cylinder?
basketball with a volume of 3.50 liters is left in a car when the temperature is 298 k. what will the volume of the
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