September 16, 2008

Are u in Love?

Ten signals to measure if you may be in love....

1) You miss someone but you actually have no any reasons to miss him/her.
2) You wanna meet someone but you just have left him/her less than 15 minutes ago.
3) You wanna hear his/her voice but you actually just talked to him/her less than 15 minutes ago.
4) He/she is so amazing in your eyes but others say his/her score is just about standard score or lower.
5) You are always thinking that his/her words are nice even when he/she is getting angry with people.
6) You are always thinking that he/she acts something cool even he/she looks like a bad clown for others.
7) He/she looks down on the one but you think he's doing the best way.
8) He/she just has standard figure but you think he/she is sexy.
9) You will feel sexy when you're with him/her.
10) You wanna spend more time with him/her and hope the time will never end.

So... are you in love now?
If you answer yes, it's time for you to tell him/her what is your true feeling.
If you answer no, dont worry... many good men/women out there who are waiting for your love. Find one (at least. huh?! ) for you!

Labels: , ,


(You can read more here…)

September 11, 2008

Indonesian Language (Part 1): How to Spell?

Bahasa Indonesia or Indonesian language unites the over 250 millions people with more than 400 kinda regional dialects or even distinct languages. Learning Indonesian language ain’t something hard. Here I’ll introduce you to Indonesian language and how to spell words using general audience. There are some key points which will be so easy to learn.


1) Each letter has special sound and it won’t be same with others. I’ll write how to spell each letter and you may compare it when you spell certain words in English.
For example:
A = cut, nut, month.
It means we can spell ‘A’ as we spell ‘u’ for ‘cut’ or ‘nut’ or ‘o’ in ‘month’.
I = ink, hint, bee, etc.
U = foot, soon, moon, etc.
E = check, send, earth, etc.
O = joy, toy, obey, etc.

The following consonants are important consonants which may distinguish them with English version as the rest are same.
C = chuck, child, chart, etc. (don’t spell ‘C’ as we spell ‘C’ in cute, case, cell, certain, etc.).
G = grant, good, game, etc. (don’t ever spell ‘G’ as we spell ‘G’ in giant, gee, gentle, etc.).
K = key, kidney, kidding, etc.
R = rare, rule, ring, etc. (use a harder tension for ‘R’ in Indonesian than English).

The all rules will realize all words in Indonesian language.

2) A word generally needs a vocal between two consonants. We’ll find rarely a word has three or more consonants or a word consists of one tension as we easily find them in English, such as words above (cut, nut, month, ink, etc.). Words in Indonesian language needs two tensions, at least.
For examples:
Meja (me-ja) = table
Kaki (ka-ki) = foot
Gigi (gi-gi) = tooth
Duduk (du-duk) = sit
Sakit (sa-kit) = pain, sick
Bahaya (ba-ha-ya) = dangerous
Menjahit (men-ja-hit) = sew
Kelakuan (ke-la-ku-an) = behavior, attitude

Have fun with Indonesian language!

Labels: , ,


(You can read more here…)

September 8, 2008

General Chemistry (Part 3): Thermochemistry

For all students of XI grade, read the following questions carefully, choose one question, give your answer here but once the question has been answered, right or wrong, you can not answer it. Just write a final answer, you don't need to write stepwise. For the last five answers, you may change your answer twice, if the first answer is false.


1) What is thermochemistry exactly?

2) Why do we learn thermochemistry?

3) Give 2 examples of thermochemistry applications in daily life.

4) State a thermochemical equation if ammonium chromate (solid) formation releases 1806.7 kJ/mole of energy.

5) 130 grams acetylene (C2H2) can raise 20 liters of water from 200C to 1000C. Calculate enthalpy change of water and state its thermochemical equation if known density of water = 1 gr/ml and heat capacity of water = 1 J/gr.0C.

6) Known the enthalpy change of ethylene and ethane formations in the manner are 51,8 kJ and 64,4 kJ, what heat will be released by ethylene produces ethane?

7) By using bond energy data in your text book, calculate how much heat will be included to react ethylene and chlorine form ethyl chloride and chloric acid? Please write the bond energy of each substance.

8) Known the following thermochemical equations:
XO2 + CO -® XO + CO2 DH = - 20 kJ
X3O4 + CO -® 3 XO + CO2 DH = + 6 kJ
3 X2O3 + CO -® 2 X3O4 + CO2 DH = - 12 kJ
Calculate the enthalpy change for the following equation:
2 XO2 + CO -® X2O3 + CO2

9) Explain latent heat and sensible heat.

10) What is 1 Btu (British Thermal Unit)? Calculate the number of joules in 1 Btu of heat.

11) What does Hess' Law state and give one example to explain your answer (you may use an example from daily life or even everywhere).


12) The natural gas in methane reacts with oxygen to give carbon dioxide and water. Calculate the heat given off when 0.010 mole of methane reacts with excess oxygen in a bomb calorimeter if the temperature of 1.00 kilogram of water in the bath surrounding the bomb increases by 1.918 0C.

13) How do we measure the enthalpy of a reaction? Explain your answer sharply.

14) What are differences between an exothermic reaction and an endothermic reaction?

15) If a reaction can not go spontaneously what you will do? Explain your answer by giving an example of each way.

16) Predict which of the following substances should have an enthalpy of formation equal to zero:
(a) Hg (l)
(b) Br2 (g)
(c) H (g)
Give your reason.

17) What value of heat will be included in the following blank enthalpy change?



















18) How much heat is given off when 1 mole of nitrogen reacts with 2 moles of oxygen to give 2 moles of nitrogen oxide gas, if for the given balanced reaction is 33.2 kJ/mole of nitrogen oxide?

19) Explain why there is only one value for the standard enthalpy of reaction for a chemical reaction whereas there can be many different values for the enthalpy of reaction.

20) Use the standard enthalpies of formation in your text book to determine whether heat is given off or absorbed when limestone (calcium carbonate) is converted to lime (calcium oxide) and carbon dioxide. Write the heat value included.

21) Use bond dissociation enthalpies to estimate the enthalpy of reaction for the combustion of carbon sulfide in the phase gas to produce carbon dioxide and sulfur dioxide.

22) Calculate the standard enthalpy change for magnesium in the solid phase reacts with fluorine in the gas phase to create magnesium fluoride in the solid phase, assuming that 1.00 gram of magnesium gives off 46.22 kJ of heat when it reacts with excess fluorine.

Labels:


(You can read more here…)