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Cemistry Essay
Write an Essay about Global Warming and Ocean Acidification
- What is global warming and ocean acidification?- Discuss the causes and consequences of global warming and ocean acidification.- How can we stop global warming and ocean acidification?- You must have at least three different references: textbooks, journals, internet etc.
This assignment should be typed, double-spaced and 4 pages long.
How is hydrogen bond differnt from an ionic or covalent bond?
Lactic acid, CH3CH (OH)COOH, has a Ka value of1.4x10-4. Explain how many grams of lactic acid must be added to make 193.0 mL of solution with a pH of 2.27
Calculate the sodium ion concentration when 72.7 mL of 4.0 M sodium carbonate is added to 33.2 mL of 1.8 M sodium bicarbonate.
what are the differences between alkenes and alkynes? what are the differences between cis- and trans-isomers? how are
The activation energy of a certain reaction is 44.8 kj/mol. At 20 degree celcius , the rate constant is0.0130s^-1 . At what temperature would this reaction go twice as fast
What is the limiting reactant? How many grams of calcium sulfate can be produced? What is the percent yield of calcium sulfate?
What is the molecular formula of a gas that has a density of 1.88 g/L at STP? this is not the actual numbers but it would be nice to know how to do this.
What other elements have electron configurations similar to hydrogen?
what is the mass in grams of A) 6.21 mol of KBr B) 10.2 mmol of PbO C) 4.92 mol of MgSO4 d) 12.8 mmol of Fe(NH4)2(SO)4 6H2)
Assuming the temperature of both solutions was initially 25? and that the final mixture has a mass of 600 g and specific heat if water, calculate the final temperature of the mixture?
Calculate the number of moles of Ascobic acid in the 50.00 ml Sample. Titration Volumes of KIO3 Initial Buret reading/ml trial 1=12.54 trial 2=8.78 Final buret reading/ trial 1=38.74 trial 2=34.93 Volume of KIO used/ml trial 1=? trial 2=?
State a short paragraph or use a graphic organizer, to illustrate the relationship among the following concepts: favorable chemical change, enthalpy, temperature, entropy and free energy.
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