1. One of the first uses for solar power (patent in 1891) was choose one)? O A s
ID: 1710240 • Letter: 1
Question
1. One of the first uses for solar power (patent in 1891) was choose one)? O A solar powered irrigation system O A solar water heater D A solar power plant o A solar powered vehicle 2. The following plot of concentration versus time isused to determine thereaction rate (k). What type of reaction best describes this reaction? O Zero-order reaction D First order reaction O Second-order reaction O Half-life reaction (minutes 3 Express the concentration 20x10 MCoh in ppm. D 0.020 ppm O 0880 ppm 20 ppm O 880 ppm 4. The pH of rain is56. What is the hydrogen ion molarity? O 0.000045 mg/L 0.000072 mg/L O 2.5 x 10 mol/l. 40 x 10 mol/LExplanation / Answer
3. Concentration of 20*10^-3 M CO2 in ppm
ppm CO2 = 20*10^-3 mol CO2/L × 44.01 g CO2/1 mol CO2 × 103 mg/1 g = 880 .2ppm
4. [H+] = 105.6
= 0.0000025
= 2.51 × 106M.
11) Flocculation is the process used to combine particles
12) A biological process converts nitrogen to N2 gas
Step 1. Organic-nitrogen is converted to ammonia-nitrogen (NH4 ) by a mostly anaerobic process called Ammonification.
Step 2. Ammonia-nitrogen (NH4 ) is converted to nitrate-nitrogen (NO3 ) by an aerobic biological process called nitrification. S
tep 3. Nitrate-nitrogen (NO3 ) is converted to nitrogen gas biologically in a low-oxygen (anoxic) environment. During denitrification, nitrogen gas bubbles harmlessly out of wastewater into the atmosphere.
13) In NAAQS pollutents CO2is not present
14) Mobile sources are responsible for most CO and Half NOX
15) significant rise in global temperature for past 20years
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.