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Inorganic Chemistry
mixing 0.32g of methane gas with 1.6g of oxygen at temperature 27c and a pressure P0.
Due to spark, a chemical reaction takes place; where at same temperature,the pressure becomes P.
a- How to find a relation between P and P0
b- Calculating the density relative to air of the initial mixture d0 and that of the mixture d. Deduce the relation between d and d0
Due to spark, a chemical reaction takes place; where at same temperature,the pressure becomes P.
a- How to find a relation between P and P0
b- Calculating the density relative to air of the initial mixture d0 and that of the mixture d. Deduce the relation between d and d0
Inorganic Chemistry
differentiate between (answer as per 9th class ICSE text book):
1. burning - respiration
2. oxidation - reduction
3. drying agent - dehydrating agent
give the sources and harmful effects on human beings , methods of control of the following:
1. global warming 2. acid rain 3.air pollution due to carbondioxide and sulphurdioxide
4.water pollution
1. burning - respiration
2. oxidation - reduction
3. drying agent - dehydrating agent
give the sources and harmful effects on human beings , methods of control of the following:
1. global warming 2. acid rain 3.air pollution due to carbondioxide and sulphurdioxide
4.water pollution
Inorganic Chemistry
define the following as per 9th class icse text book:
1. distillation
2. water pollution
3. solution
4. efflorescence
5. hygroscopic substances
6. solubility
7. burning
8.saturated solution
9.neutralisation reaction
10.pollution
11.thermal dissociation
12.hydrolysis
1. distillation
2. water pollution
3. solution
4. efflorescence
5. hygroscopic substances
6. solubility
7. burning
8.saturated solution
9.neutralisation reaction
10.pollution
11.thermal dissociation
12.hydrolysis
Inorganic Chemistry
In a reaction at equilibrium X mole of the reactant A decompose to give one mole each of C and D. It has been found that the fraction of A decomposed at equilibrium is independent of initial concentration of A. Find the value of X
Inorganic Chemistry
A sample of 18K gold contains the following by mass: 18.0 grams gold. 3.0 grams silver, and 3.0 grams copper. What is the percentage of gold?
Inorganic Chemistry
what is the empirical formula for compunds formed with calcium and oxygen?
Inorganic Chemistry
I have had this question in my homework, and honestly I got stuck in these questions. I managed to convert 5.3g of Na2CO3 into moles, but then I got stuck and do not know what to do next to solve the question.
If anyone knows how to work this out, help from anyone is greatly appreciated (:
The addition of 5.3g of anhydrous sodium carbonate to 2.00dm³ of an aqueous solution of a strong acid exactly neutralises the acid
2H+ (aq) + (CO3)2-(aq) ==> CO2 (g) + H2O (l)
a. Calculate the pH of the original solution
b. In a second experiment, 5.3g of NaOH were added, instead of sodium carbonate, to 2.00dm³ of the original solution. Calculate the pH of the resulting solution.
Thanks! :)
If anyone knows how to work this out, help from anyone is greatly appreciated (:
The addition of 5.3g of anhydrous sodium carbonate to 2.00dm³ of an aqueous solution of a strong acid exactly neutralises the acid
2H+ (aq) + (CO3)2-(aq) ==> CO2 (g) + H2O (l)
a. Calculate the pH of the original solution
b. In a second experiment, 5.3g of NaOH were added, instead of sodium carbonate, to 2.00dm³ of the original solution. Calculate the pH of the resulting solution.
Thanks! :)
Inorganic Chemistry
calculate % ionic character of K---Cl bond in KCL. electro negativity of K and CL are 0.8, and 3.0 respectively
Inorganic Chemistry
In the 2011-2012 academic year, Dr. Harmon used approximately 515 kg of methane in his home for heating, hot water, and stove/oven use. How many 75-gallon barrels of waste corn oil should Dr. Harmon collect to produce his own methane for 1 entire year assuming he uses the exact same amount of methane as in the 2011-2012 academic year? The density of oleic and linoleic acids are very similar, you may assume both are 0.90 g/cm3. Additionally, you may assume the percent yield of methane production from corn oil pyrolysis is 100%
HC18H31O2+ O2(g) àCH4(g) + CO2(g) + H2O(g) + H2(g)
HC18H33O2 + O2(g) àCH4(g) + CO2(g) + H2O(g) + H2(g)
To make this problem easier, you may assume 65% of the methane produced comes from linoleic acid and 35% of the methane produced comes from oleic acid.
HC18H31O2+ O2(g) àCH4(g) + CO2(g) + H2O(g) + H2(g)
HC18H33O2 + O2(g) àCH4(g) + CO2(g) + H2O(g) + H2(g)
To make this problem easier, you may assume 65% of the methane produced comes from linoleic acid and 35% of the methane produced comes from oleic acid.
Inorganic Chemistry
what are odd electron molecules?
