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Buffers are typically made by combining a weak acid with its salt or by combining a weak base with its salt. Which of the following will be the other component present in a prepared buffer if one component was NH4Cl?a. HClb. NH3c. NaOHd. none of the above
Net ionic equation for Sodium Carbonate and Lithium sulfate. Sodium carbonate and sulfuric acid. Strontium chloride and lithium sulfate.
calculate the amount of work produced on the system and by applying the first law of thermodynamic calculate the amount of q of heat transfered from the system to the enviroment,
Half an alka seltzer tablet is dissolved and completely reacted in 25mL of HCL, and the gas produced displaces 0.240L of water from a secondary flask.
reversible expansion from Pinitial=25.0 bar and Vinitial=4.50L to Pfinal=4.50 bar, (2) a single step irreversible expansion against a constant external pressure of 4.50 bar
Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas. How many grams of calcium hydride
A smple of mixture of NaCl, Caco3 and SiO2 weighed 7.30 grams. During the water wash the sample lost 2.21 grams. After treatment with HCL, the sample weighed 2.05 grams.
If you take a 10.5mL portion of the stock solution and dilute it to a total volume of 0.350 L, what will be the concentration of the final solution.
World energy supplies are often measured in the unit of quadrillion British thermal units (1012 Btu), generally called a "quad." In 2015, world energy consumption is projected to be 5.81 ×1017kJ.
Calculate the pressure when temperature is increased to 383 0C and volume of container keeps constant?
A 15.00 mL sample of a 0.100 M solution of lead(II) nitrate is reacted with 10.00 mL of 0.170 M sodium chloride. How many grams of lead(II)
The energy (in kJ) that is removed as heat from this system when the Carnot refrigerator from part a) contains 340. g of R-12. Assume the heat is removed in a constant pressure process.
A solution contains 0.010 M silver ion and 0.0010 M lead(II). Sodium sulfate is dissolved to give a nominal concentration of 0.0010 M sulfate. Does a precipitate form?
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