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Calculate the volume (in mL) of 6.25 x 10-4 M ferroin solution that needs to be added to a 10.0 mL volumetric flask and diluted with deionized (DI) water in order to prepare a calibration standard solution with a concentration of 2.50 x 10-5 M ferroin. . a. 0.200 mL b. 0.400 mL c. 0.600 mL d. 0.800 mL e. none of the above
calculate the PH of a solution made by adding 5.00gram of sodium hydride,NaH,to enough water to make 0.900 litre of solution?
What is the mass percent of NaCl in a solution obtained by mixing 50g of this solution with 215g of H2O?
Calculate the values of vmax and Km for the reaction. c) How much of a noncompetitive inhibitor must be added to yield 90% inhibition? The degree of inhibition, i, is calculated by i% = (1-?) 100%, where ? = (vo)inhibition/ vo Assume KI = 2.9 x 1..
Sketch the typical stress-strain curve for a metal and a ceramic. Using the sketch, indicate the following properties; elastic and plastic regions, yield points, Ultimate Tensile Strength (UTS), strain energy and fracture toughness.
which effect on atomic size is more significant the nuclear charge or the energy level that electrons are filling?
what is the common IUPAC name for a benzene ring with a single ammonia group (NH3) attached
Suppose that 50.0g of Zinc and 50.0g of Iodine are used to form Zinc (II) Iodide. Answer the following questions: (A) What is the limiting reagent?
Calculate the standard-state entropy for the following reaction: 1 \rm CH_4(g) + 2 \rm O_2(g) \longrightarrow 1 \rm CO_2(g) + 2 \rm H_2O(l) (If applicable, coefficients of one have been included for clarity.)
What are the bond angles in a model of CCl4 a) less than 109.5 degrees b) 109.5 degrees c) less than 120 degrees but greater than 109.5 degrees d) 120 degrees
Construct a delta H and delta S table, including the four possibilities associated with the two possible signs for each of delta H and delta S. Discuss the resulting sign of delta G and the spontaneity of the process.
The Cu is added to the calorimeter, and after a time the contents of the cup reach a constant temperature of 30.2 *C. Determine the amount of heat, in Joules, lost by the copper block
A minute sample of AlCl3 is analyzed for chlorine. The analysis reveals that there are 24 chloride ions present in the sample. How many aluminum ions must be present in the sample
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