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2- ECD 3- ICP-AES 4- TCD 5- AAS 6- GLC 7- SHE 8- SEC Q4- What...
2- ECD 3- ICP-AES 4- TCD 5- AAS 6- GLC 7- SHE 8- SEC Q4- What kind of chromatography wil be most applicable to separate the following substances: (choose from the following: gas- liquid chromatography, liquid-solid partition chromatography, reversed phase partition chromatography, adsorption chromatography, ion-exchange chromatography, gel filtration chromatography, gel permeation chromatography) (3.5 points) Chromatographic separation technique Mixture a- Gasoline fuel components (mostly a mixture of aliphatic hydrocarbon compounds) b- Free amino acids (*NH3-CHR-COO) (Analine, Leucine, Valine, aspartic acid, Glycine...
how is this b? 19. Match each figure with one of these compounds: CO, NaCl, Na20....
how is this b?
19. Match each figure with one of these compounds: CO, NaCl, Na20. Compound I Compound II Compound I A. Na20 B. CO СО D. NaCl Compound II Naçi Nači Na2O CO
QUESTION 7 aas A capacitor is storing energy of 3 Joules with a voltage of 50...
QUESTION 7 aas A capacitor is storing energy of 3 Joules with a voltage of 50 volts across its terminals. A second identical capacitor of the same value is storing ènergy of 1 Joule. What is the voltage across the terminals of the second capacitor? tea ndca o a. 140 (V) b. 28.87 (V) C70.70 (v) d. 57 (V) QUESTION 8
Match the oxidation state to the coordinated metal centre. Which pair is incorrect? Question 3 Not...
Match the oxidation state to the coordinated metal centre. Which pair is incorrect? Question 3 Not yet answered Marked out of 1.00 P Flag question Select one: O a. [Fe(CN)614-; +2 O b. K[Cu(CN)2]; +2 O c. [Cr(ox)3]3-; +3 O d. [Sc{N(SiMe3)2}3]; +3
Chronic Environmental QUESTION 37 points UV-A and UV-B rays from the sun can be considered as...
Chronic Environmental QUESTION 37 points UV-A and UV-B rays from the sun can be considered as an exposure but a person's serum cholesterol level cannot be an exposure. O True O False QUESTION 38 points Save All Answers Save and Search the web and Windows
Atmospheric ozone plays a UV-A (320-400 nm), UV-B (280-320 nm), and UV-C (200-280 nm)
Atmospheric ozone plays a UV-A (320-400 nm), UV-B (280-320 nm), and UV-C (200-280 nm). Unfortunately, human-caused pollution has eroded the ozone layer in the stratosphere, allowing a greater amount of ultraviolet radiation to reach the Earth's surface. The damaging effects of the radiation can be related to it's photon energy. Arrange the regions of UV radiation from overall lowest to highest photon energy. role in absorbing high-energy and damaging UV radiation, including Lowest Photon Energy Highest Photon Energy. Which region of...
Match Each reaction to its reaction type: 2 NaBr + Cl2 → 2 NaCl + Br2...
Match Each reaction to its reaction type: 2 NaBr + Cl2 → 2 NaCl + Br2 Na2SO4 + CaCl2 → CaSO4 + 2 NaCl CH4 + 2 O2 → CO2 + 2 H2O CaCO3 → CaO + CO2 MgO + H2O → Mg(OH)2 HCl + NaOH → NaCl + H2O A. Decomposition B. Double Replacement C. Combustion D. Acid/Base E. Explosion F. Combination G. Single Replacement
(a) Write the vector aas a linear combination of the set of orthonormal basis vectors 2 marks] (b) Find the orthogonal...
(a) Write the vector aas a linear combination of the set of orthonormal basis vectors 2 marks] (b) Find the orthogonal projection of the vector (1,-3) on the vector v- (-1,5). 2 marks] (c) Using your result for part (b) verify that w = u-prolvu is perpendicular to V. 2 marks]
(a) Write the vector aas a linear combination of the set of orthonormal basis vectors 2 marks] (b) Find the orthogonal projection of the vector (1,-3) on the vector...
B. Match the five UV absorption maxima with the corresponding compounds (1) 232 nm; (2) 256...
B. Match the five UV absorption maxima with the corresponding compounds (1) 232 nm; (2) 256 nm; (3) 273 nm; (4) 292 nm; (5) 313 nm; (6) 353 nm. idi ie) CHROMOPHORE PARENT HETEROANNULAR DIENE EXOCYCLIC DOUBLE BON ALKYL GR EXTENDED DOUBLE BOND CHROMOPHORE PARENT HOMOANNULAR DIENE PARENT HETEROANNULAR DIENE EXOCYCLIC DOUBLE BOND ALKYL GROUPIS) EXTENDED DOUBLE BOND CHROMOPHORE PARENT HOMOANNULAR DIENE EXOCYCLIC DOUBLE BOND ALKYL GROUPIS) EXTENDED DOUBLE BOND CHROMOPHORE PARENT HOMOANNULAR DIENE PARENT HETEROANNULAR DIENE EXOCYCLIC DOUBLE BOND...
No other information included Given a Scenario Question: No other information is included. e) After a...
No
other information included
Given a Scenario Question: No other information is included.
e) After a semester of instrumental analysis study, you found a job in a local environmental analysis firm. The lab is well equipped and has most of the analytical instruments that we discussed this semester (surprise!). The methods available include: • Flame Atomic Absorption • Double-focusing Mass Spectrometer Spectrometry (AAS) • Molecular Fluorescence • Graphite Furnace AAS Spectrophotometer • ICP-AES • UV-VIS spectrophotometer • ICP-Mass Spectrometer HPLC...
2- ECD 3- ICP-AES 4- TCD 5- AAS 6- GLC 7- SHE 8- SEC Q4- What kind of chromatography wil be most applicable to separate the following substances: (choose from the following: gas- liquid chromatography, liquid-solid partition chromatography, reversed phase partition chromatography, adsorption chromatography, ion-exchange chromatography, gel filtration chromatography, gel permeation chromatography) (3.5 points) Chromatographic separation technique Mixture a- Gasoline fuel components (mostly a mixture of aliphatic hydrocarbon compounds) b- Free amino acids (*NH3-CHR-COO) (Analine, Leucine, Valine, aspartic acid, Glycine...
how is this b?
19. Match each figure with one of these compounds: CO, NaCl, Na20. Compound I Compound II Compound I A. Na20 B. CO СО D. NaCl Compound II Naçi Nači Na2O CO
QUESTION 7 aas A capacitor is storing energy of 3 Joules with a voltage of 50 volts across its terminals. A second identical capacitor of the same value is storing ènergy of 1 Joule. What is the voltage across the terminals of the second capacitor? tea ndca o a. 140 (V) b. 28.87 (V) C70.70 (v) d. 57 (V) QUESTION 8
Match the oxidation state to the coordinated metal centre. Which pair is incorrect? Question 3 Not yet answered Marked out of 1.00 P Flag question Select one: O a. [Fe(CN)614-; +2 O b. K[Cu(CN)2]; +2 O c. [Cr(ox)3]3-; +3 O d. [Sc{N(SiMe3)2}3]; +3
Chronic Environmental QUESTION 37 points UV-A and UV-B rays from the sun can be considered as an exposure but a person's serum cholesterol level cannot be an exposure. O True O False QUESTION 38 points Save All Answers Save and Search the web and Windows
(a) Write the vector aas a linear combination of the set of orthonormal basis vectors 2 marks] (b) Find the orthogonal projection of the vector (1,-3) on the vector v- (-1,5). 2 marks] (c) Using your result for part (b) verify that w = u-prolvu is perpendicular to V. 2 marks]
(a) Write the vector aas a linear combination of the set of orthonormal basis vectors 2 marks] (b) Find the orthogonal projection of the vector (1,-3) on the vector...
B. Match the five UV absorption maxima with the corresponding compounds (1) 232 nm; (2) 256 nm; (3) 273 nm; (4) 292 nm; (5) 313 nm; (6) 353 nm. idi ie) CHROMOPHORE PARENT HETEROANNULAR DIENE EXOCYCLIC DOUBLE BON ALKYL GR EXTENDED DOUBLE BOND CHROMOPHORE PARENT HOMOANNULAR DIENE PARENT HETEROANNULAR DIENE EXOCYCLIC DOUBLE BOND ALKYL GROUPIS) EXTENDED DOUBLE BOND CHROMOPHORE PARENT HOMOANNULAR DIENE EXOCYCLIC DOUBLE BOND ALKYL GROUPIS) EXTENDED DOUBLE BOND CHROMOPHORE PARENT HOMOANNULAR DIENE PARENT HETEROANNULAR DIENE EXOCYCLIC DOUBLE BOND...
No
other information included
Given a Scenario Question: No other information is included.
e) After a semester of instrumental analysis study, you found a job in a local environmental analysis firm. The lab is well equipped and has most of the analytical instruments that we discussed this semester (surprise!). The methods available include: • Flame Atomic Absorption • Double-focusing Mass Spectrometer Spectrometry (AAS) • Molecular Fluorescence • Graphite Furnace AAS Spectrophotometer • ICP-AES • UV-VIS spectrophotometer • ICP-Mass Spectrometer HPLC...
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