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Problem: The following data gave the recovery of bromide from spiked samples of vegetable matter, measured by using a gas-liquid chromatographic method. The same amount of potassium bromide was added to each specimen.
Tomato 777 790 759 790 770 758 764 µg/g
Cucumber 782 773 778 765 789 797 782 µg/g
Required:
Question 1: Does the sample matrix interfere in the precision of the method?
Question 2: Does the sample matrix interfere in the recoveries?
Concentrated hydrochloric acid is 37.0% HCL by weight and has a specific gravity of 1.19 (density = 1.19 g/mL). What volume of this acid must be diluted to 500 mL to produce a 0.300 M solution of this acid
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the idea of using the pressure at the bottom of the naoh tank to drive the flow of NAOH to where it will join the HCL
Question- a fictional element has two isotopes, each making up 50% of the population. Isotope 1 has a mass of 80.0 amu, isotope 2 has a mass of 85.0 amu. Calculate the atomic mass of the fictional element.
an automobile gasoline tank holds 27kg of gasoline when the gasoline burns 85kg of oxygen is consumed and carbon
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NaCl, NaBr and MgO all have the same crystal structure. (a) Explain why the lattice dissociation enthalpy of NaBr is a bit less than that of NaCl.
Which of the following is a tertiary alkyl halide. Can you please expalin why A) (CH3)2CHBr B) (CH3)2CHCH2CI C) (CH3)3CCI D) CH3CH2CHBr2 E) CH3CHBr2
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