Author Archives: seungjur2015

Chem 12 Block A Jason Ryu Candy lab

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Before start calculation, I did titration three times but I messed up the first and second titration.

Third titration was pretty accurate, so I am going to use third titration result ( 4.5 ml of Naoh)

I know it can be three different equations because of H3 in Phosporic acid but I assume that it will be second one which has 1:2 ratio becuase the acid is not too strong or not too weak.

 

 

Here is my calculations

 

 

It is really hard to see… what na useless site…

Here is my attachments of calculations.

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Therefore, Ph is 1.89 and concentration is 0.0225M

 

 

 

 

 

 

 

 

 

 

 

English 11 Nature or Nurture

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Nature vs nurture is one of the most popular and most complicate topic of the debate which is still unsolved for many years. From the past, people argue about this question for nature and nurture group. Nature is people’s features are settled when they born, and nurture is people’s features are settled depending on the environments around them. Usually, nature side people claim genetic reasons mostly. Nurture side people claim environental problems, such as difference social class, finances and living style. In my opinion, nature is more pursuasive claim because reasons of the nature side people are scientificly prooved. Especially, i think the gene affect people’s personality a lot. I have an older brother who is in college now. When I and he was young, people could not mention that I have an older brother because I was much taller than brother. I and he also often fought becuase of many small conflicts like argue about play video games or play baseball, but, on the other hand, many qurrel with brother also mean I and my brother have completely different opinions. Therefore, I thought my brother has different mind. However, an opporunity makes me change this. At that moment, I rarely talked with my brother so I could not understand brother’s thought. A few weeks ago, I talked with my brother for a few hours  about several problems that me and my brother have, and it changed my prejudice that brothers cannot be close like friends. Due to enough talking, I realized that I was wrong and I and he have very similar thoughts. When I made solutions for problems, my brother also made exactly same solutions. Suprisingly, we did not struggle because of different opinions. I think serious and tensed atomosphere cause effective communication for better result. Genetically, I and my brother have very different features, such as height and weight. However, inside of us are pretty similar as much as I think. As a result, I think nature affect people more than nurture.

Math 11 raidcals and absolute values

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Key concepts

Radicals and absolute value  – If the number is in l   ???   l ,  answer will be +. This unit helps to understand range of unknown number.

Remeber the concept of the root –  x  =  √x ²

 

Example questions for final.

 

 

Every x and y will be changed for positive number.

 

I studied this unit for better score. I spent almost like 20 hours.

I think I am good at control myself. I have good study habits and also it is very useful.

 

IF the number will be subtracting and adding, the numbers need to have same root #

 

 

 

 

 

 

 

 

 

 

 

 

English 11 Writing paragraph

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Getting certified by giving out license to become a parent would assure the proper care for the children. For example, parents need to have a financial stability in order to raise a child. If this is not approved, a child would struggle for money along his critical events in life, such as going to school, nurture, activities, entertainment, and basic need of life. For information, let’s take a look at the downside of no having a system of approving the parental status. An alcoholic parent raising a baby is not a good idea because babies tend to learn many things both consciously and unconsciously, like sponges. Therefore, drinking excessive alcohol results in impaired mentality which leads to disorganization and violence. For other example, parents should be healthy both physically and mentally. If they do not have normal health, their children will get poor environments to live, then it leads to unhealthy life to their children as well. More specifically, let’s suppose children have infirm parents. The children are going to worry about their parents’ healthy and it will affect their whole living style in bad ways. If children are low grade students, children’s friends can ditch them and swear their parents. For another example, parents need to have responsibility to take care their children properly. If parents are not responsible, their children can be harmed by their parents. From media, people can rarely hear about parents who ignore, neglect and incarcerate their children. It is very severe case because it shows that parents can kill their children without criminal awareness. If parents do not have responsibility to care their children, they can ignore the seriousness of the situation in worst case. As a result, to block this happening before it happened, license should be generalized to prospective parents for better understanding of parenting.

Math10 weekly blog post week 18

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The LAST blog post!!.

Therefore, today, I am going to write about Math 10 top 5 things. I chose that what I confused about it.

The first one is relation and function,

             This is example of relation. a relation is when two variables are connected to each other in some way

easily, it doesn’t overlapped by two or more pairs ( in Y 축)  like this

 

 

 this is a function

Please remember Jason…

 

 

The 2nd  is  trigonometry.

Trigonometry shows that I am good at calculate 3D things. I had good score in this unit.

The 3rd one is Exponents unit.

I am really bad at this unit. At that time, I really studied hard to pass it but I was stupid enough. I lost most marks. I think I need improvement.

The 4th one is The System of Linear Equation.

Linear Equation is actually the most easiest part to me because I had learnt about it 3 years ago. however, I was careless. I just did stupid mistakes and I lost marks. Remember Jason.

 

The 5th one is Numbers unit. Number unit was the most first one that I learnt. I though ehhhh,,, what is this,,, It is really easy peasy lemon squessyyyy.. … shut up Jason.

I was freaking stupud . conceit is my worst weakness.

don’t ignore it if you know about it.

ha,,, well I am going to study about it more deeply.

for A in math 11.

 

 

 

 

 

 

 

 

Math 10 weekly blog post week 17

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Last week, I learnt about Solving systems of linear equations by graphing.

In the unit, seriously hard calculate thing was attacked my brain

it was substitution.

 

it is really hard to correct the answer because too much calculating things are in the equation.

 

 

 

 

This is example of substitution.

y-3x=-3

-2x-4y=26

Firstly, I need to decide one of four ways. Every way is good but we need excellent way to do it much easier than good way.

The excellent way of this question is  move -3x from the first equation.

so  y= 3x-3 we find this, the last thing is substitute in next equation’s y.

so -2x-4(3x-3)=26

as a result we found x = 1

and then, we can just put 1 in the X choose one equation.

y = -6

 

when I solve this complicate way, I learnt much easy way, that was elimination.

 

it is easy because we can just + or – the  two of equations.

so  first we need same number to make disappear when we add it.

 

60x-12y=-18

-50x+12y=16

so I just multiply by 2 to the first equation.

after that, 12 y is disappeared because i add it all.

than last one is make it clearly to do calculate.

 

Therefore what i am going to teach is use elimination if you can use it,

but if you cannot use it to get the result, use substitution,