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a pressurized inflated tube at room temperature contains chlorine and hydrogen gases with masses 6 kg and 9 kg respectively.given that the total pressure of the tube is 190 kpa, calculate
a) the k moles of air in the tube
b)the partial pressure of the gases
a swimmer dives into a pool 10m deep.calculate the absolute pressure there (density of water = 99kg/m3,g=9.81m/s2.atmospheric pressure =101.325kgpa
what derivative contains a double bonded oxygen with another oxygen on one carbon?
What are the factors that affect bond length of a compound ?
Factors affecting bond length of a compound
The Drug Enforcement Agency (DEA) confiscated a hallucinogenic substance during a drug raid. When the DEA chemists subjected the unknown hallucinogen to chemical analysis,they found that the substance had a molecular mass of 314. Elemental analysis revealed the presence of carbon and hydrogen only. Using the Rule of Thirteen,determine a molecular formula and an index of hydrogen deficiency for this substance. (Hint:The molecular formula of the unknown also contains two oxygen atoms. The unknown is tetrahydrocannabinol,the active constituent of marijuana. Look up the structure of tetrahydrocannabinol in The Merck Indexand confirm its molecular formula.)
What is the molarity of the acetic acid solution if 25.7 mL of a 0.240 M KOH solution is required to titrate 29.0 mL of a solution of HC2H3O2?
HC2H3O2(aq)+ KOH(aq)→ H2O(l)+ KC2H3O2(aq)
Express your answer with the appropriate units.
Explain, using the examples of internal respiration and fatty acid break
down, why the reactions of simple organic molecules are important in living
systems.
Identify and name all the compounds/conditions/catalysts (incl. the missing ones) in the
following conversions.
(a) CH2=CH2 ------?----→ CH3CH2OH ------?----→ ..............?......----?--
→ CH3COOC2H5
(b) CH3OH --------?-----→ .........?........ ------?-----→ CH3CN ---------?---
→ CH3COOH
(c) CH3CH2CH2CHO -----?--→ CH3CH2CH2CH(OH)CN ------?---→
.........?........ -----?----→ CH3CH2CH2CHBrCOOH
(d) CH3CHO ---[HCN & gentle reflux]→ .........?........ ---[HCl (aq) &
reflux]→ .........?........ ---[heat with NaBr & conc.H2SO4] →
..........?............. ---[heat with NH3 in sealed tube]→ .............?.............
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