Sewage containing organic waste should not be disposed into water bodies because it causes major water pollution. Fishes in such polluted water die because of
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- What is the chemistry behind fish fermentation process? Provide references and elaborateThe American Heart Association (Links to an external site.) recommends no more than 2,300 milligrams (mg) of Sodium a day and moving toward an ideal limit of no more than 1,500 mg per day for most adults. How many tsp of table salt contains 1,500 mg sodium? Hint: mg Na --> g Na--> mol Na-->mol NaCl-->g NaCl -->tsp NaCl report final answer with correct number of significant figuresWhich parameter is measured by determining the drop in dissolved oxygen in a sealed water or wastewater sample for a fixed number of days? microbial count COD BOD phosphorus nitrogen
- Oceanic uptake of carbon dioxide is thus described:CO2 (g) + H2O ⇔ H2CO3, K = [H2CO3]/PCO2 = 3 x 10-2 M atm-1 H2CO3 ⇔ HCO3- + H+, K = [HCO3-][H+]/[H2CO3] = 9 x 10-7 moles/LHCO3- ⇔ CO32 - + H+, K = [CO32 -][H+]/[HCO3-] = 7 x 10-10 moles/L CaCO3 ⇔ Ca2+ + CO32- Kc = 4 x 10-9 M2 What is the full charge balance equation for this system?Oceanic uptake of carbon dioxide is thus described:CO2 (g) + H2O ⇔ H2CO3, K = [H2CO3]/PCO2 = 3 x 10-2 M atm-1 H2CO3 ⇔ HCO3- + H+, K = [HCO3-][H+]/[H2CO3] = 9 x 10-7 moles/LHCO3- ⇔ CO32 - + H+, K = [CO32 -][H+]/[HCO3-] = 7 x 10-10 moles/LCharge balance equation:[H+] = [OH-] + [HCO3-] + 2[CO32 ] If the CO2 concentration in the atmosphere is 300 ppm, what is the pH of the ocean?Water boils at 100C at atmospheric pressure, that is, at sea level (To=15oC). The boiling point is defined as the temperature at which the vapor pressure of water is equal to the atmospheric pressure. This has consequences for cooking in places such as Atok where it takes quite a bit longer to make a hard-boiled egg than it would in Baguio City. If the albumen in an egg needs to reach 75C for the protein to coagulate, at what height would it be impossible to hard boil an egg?
- e-Services Academic Departments Answer the questions for the graph given below. 100 90 NaNO 80 70 60 CaCl 50 Pb(NO3)2 40 KCI NaCl 30 20 KCIO, 10 Ce (SC 10 20 30 40 50 60 70 8C 0. Temperature (°C) DELL Solubility (g of salt in 100 g H,O) FONXFNDM 21-22-Data Handling Task document - Student copy-1 _BA CB B. If the total amount of a surfactants to be used in an emulsion is 5 g, calculate the amount of Span 80 (HLB= 4.3) and Tween 20 (HLB= 16.7) needed in order to obtain an HLB value of 10.5.Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Concentration iron(III) nitrate 0.00200 0.00200 0.00200 0.00200 0.00200 [Fe(NO3)3] (M) Concentration potassium thiocyanate 0.00200 0.00200 0.00200 0.00200 0.00200 [KSCN] (M) Volume Fe(NO3)3 (mL) 5.00 5.00 5.00 5.00 5.00 Volume KSCN (mL) 5.00 4.00 3.00 2.00 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 Initial concentration [Fe3+] (M) 0.00100 0.00100 0.00100 0.00100 0.00100 Initial concentration [SCN] (M) 0.00100 0.000800 0.000600 0.000400 0.000200 Absorbance 0.269 0.192 0.154 0.104 0.052 Equilibrium [FeSCN2+] (M) 0.000198 0.000141 0.000113 0.0000765 0.000038 Equilibrium constant Kc Average Kc
- Concentration of Acetic Acid in a Vinegar Solution. Average molarity of NaOH Volume HC₂H30₂ sample Final buret reading Initial buret reading Volume NaOH (Show all units and all calculations) Molarity of HC₂H30₂ (unrounded) Average molarity of HC₂H302 (unrounded) Deviations Average deviation Best estimate for molarity of HC₂H302 Average mass percent HC₂H302 46.4mL Oml Ran out of Base ↓ ↓ ↓ ↓ 10.014 HOA je beart giov isults weari?! ferottelucuny Cambia) 10 Kousad Question 1. A Rolaids tablet contains calcium carbonate that neutralizes stomach acid. If 44.55 mL of 0.448 M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium carbonate are in a Rolaids tablet? CaCO, (s) + 2HCl(aq) → CaCl₂ (aq) + H₂O (1) + CO₂ (g)A water quality investigation is conducted in a suburban stream. Investigators determine that there are high amounts of developmental malformations in the bluegill fish population. Which of the following statements suggests the most likely cause of this change in the bluegill population? A. Surface runoff containing nitrates from animal feedlots is entering upstream of the bluegill population. Surface runoff containing phosphates from animal feedlots is entering upstream of the bluegill population. Surface runoff containing pollutants from acid precipitation is entering upstream of the bluegill population. Surface runoff containing endocrine disruptors is entering upstream of the bluegill population.Alcoholic beverages are solutions. Typically, a beer contains about 4.50% (v/v) of ethanolfermented by yeast from sugars while rum contains about 40.0% (v/v) ethanol. Meanwhile, arubbing alcohol is also an alcohol solution which contains 70.0 %(v/v) isopropyl alcohol fermentedby a bacterium instead of a yeast. Compute the mass (g) of ethanol (CH3CH2OH) in three 500.0 mL bottles of beer. Meztiza, a beer cocktail, is prepared by mixing rum, beer, and cola. Compute the finalconcentration(%w/v) of ethanol in meztiza if 100.0 mL of beer was first mixed with 5.0 mL rum andbefore finally diluting it with cola to produce 200.0 mL of the beer cocktail. Compute for the concentration of isopropyl alcohol (C3H8O) if 50.0 mL of rubbing alcohol wasdiluted to 350.0 mL with distilled water.