Friday, May 6, 2016

3 question blog 5/6

The tasks I have completed recently include taking notes for chem, psychology, and socialogy. As well as completing my essay for my English class. Lastly, I have completed several study guides to help prepare me for my finals.

Recently I have learned the differences between acids and bases. I have also learned more about the civil rights movement and also how women and men were treated back then compared to how there's a slighter difference now.

Next, I plan to pass my EOC's as well as my final exam for my sociology class. I also plan to study for all my finals extremely hard. And lastly, I plan to complete all the UT homework due and also try to answer some of the placement questions as well.

By the way I'm sorry I did this so late Ms. Garnder. My game lasted late and I still had to take a test online. We lost by one flippin point. We had them, but things happen. Anyways goodnight Ms. Garnder!

Friday, April 22, 2016

3 question blog 4/23

Recently, I have completed taking the 10.1 and 10.2 notes for chemistry. I have also completed two tests for my sociology class. And have completed the tests for parcc.

Recently I have learned that a solvent is what the solute is dissolved in and the solute is what can be dissolved. I have also learned the difference between saturated and super saturated. Also how to make ice cream! In my sociology class I have learned how elders are looked upon in today's society. In some cultures however, elders are considered wise and intelligent. I have also learned that drugs and alcohol accidents occur every 53 mins.

Next I plan to study hard for my chemistry test and also my sociology and psychology tests. I also plan on studying my notes to make sure I have a clear understanding of everything.

Wednesday, April 20, 2016

Precipitant explore blog

A precipitate is formed from a liquid solution, but is initially a insoluble solid, which means it does not dissolve. It is also typically ionic. Temperature plays a major role in what makes a precipitate. For example, lowering the temperature can form a precipitate. In our lab, we observed that salt, being a solute, allows for the temperature to be lowered, however it does become a solid precipitate.

An aqueous solution is where the solvent is water. The anions and the cations are combined to form a insoluble ionic solid called a precipitate. A method that we use to identify whether this occurs are called solubility rules since not all aqueous reactions form precipitates.

The solubility rules are
1.  NO3- : Nitrate's are ALWAYS soluble
2. Alkali metals are ALWAYS soluble
3. Ammonium  is ALWAYS soluble
In the lab, the precipitates that were formed were CuSo4, FeCl3, Pb (NO3)2, and AgNo3.
Non- precipitates were CaCl2, HNO3, NaCO3, and NH3. Evidence that also supports that Nitrate's are always soluble is that Pb (NO3) produced a precipitate when combined with the other chemicals the majority of the time. Evidence that supports that Alkali metals are always soluble is that KI produced a precipitate with other chemicals. The evidence that proves that ammomium is always soluble is that NH3 (aq)+H(aq)=NH4 (aq) .

Tuesday, April 19, 2016

Solutions Explore blog

A solution is a mixture where the solute is distributed within the solvent. A solvent is what the solute is dissolved in. The solute is what can be dissolved.

Dissolving is when the solute has broken down into smaller molecules, from the large molecule it once was, after it has made contact with the solvent.

In conclusion, my results each demonstrated something different in each part of the lab. In part A, we were able to identify when a solution is saturated, or super saturated. When a solution is saturated, it means that the solution has dissolved nearly completely and cannot be dissolved anymore. In my results, the sodium acetate was saturated because it dissolved in the water and it could not be dissolved anymore. However the heated test tube results were that it was super saturated because it completely dissolved because the heat created more energy and allowed for the molecules to be broken down faster.

In part B, we concluded that like dissolves like. The glucose had not dissolved in the Benzene but dissolved in the water. The water was polar and the Benzene was non-polar. Therefore, if a substance was polar it would dissolve in water and whatever was non-polar, would dissolved in the Benzene.

In part C, we were able to identify what can conduct an electric current using electrolytes. The glucose and DI water, did not produce electricity, because there were no electrolytes. Sodium chloride, and tap water both produced electricity. However, Sodium cholride produced a higher conductivity because it had stronger electrolytes than the tap water. The tap water was not as bright as the sodium chloride also because it produced fewer ions.




Friday, April 8, 2016

3 question blog 4/8

Recently I have completed two tests for sociology, and psychology. I have also completed my outline for my essay in english.

Recently, I have learned about thermochemistry and how the phase diagram fits into it. I am also learning how to convert unit measurements to help solve direct or indirect problems (Boyles, Charles', and Gay Lussacs law). I have also learned that people who are deaf aren't seen as having a disability because they're their own ethnic group which makes several people interested in how they communicate and want to learn more about their culture.

Next, I plan to study really hard for my sociology test. And to mentally prepare myself for the rest of the semester. I'm also going to study for the thermochemistry test that's coming up soon. I will also develop better study skills and try my hardest to stay on task.

Monday, March 28, 2016

Cold and Hot Packs Explore Lab

Based off the reactants and products we were given, I have designed a cold and hot pack in which are both created using non-toxic nor hazardous reactants or products.

 Cold pack: Ammonium Nitrate          
                    NH4NO3+H2O-> NH4+NO3
                    $9.60 for 500g
Ammonium Nitrate is non- hazardous nor is it toxic. Ammomium Nitrate is actually used as fertilizer which helps increase growth in plants. Ammomium Nitrate is non-flammable however, if it is kept in excessive heat or confined pressure it may cause Ammonium Nitrate to explod but is very unlikely for that to occur. In the lab, ammomium Nitrate's initial temperature was 25.8°c and dropped to a lower temperature of 12.9°c which means it is endothermic since heat was absorbed.

Hot Pack: Magnesium Sulfate
                   MgSO4+H2O-> Mg+SO4
Magnesium Sulfate is a non-organic salt or mineral that is completely safe and non toxic. In the lab, magnesium sulfates initial temperature was 25.8°c and rose to a temperature of 28.0°c which shows that it is exothermic because heat was released.

•NH4Cl+Ba (OH)2-> BaCl2+H2O+ NH3
•HC6H7O7+NaHCO3-> NaC6H7O6+H20+CO2
•CaCl2+H2O-> Ca+2Cl
 All these reactants and products are toxic and hazardous because the top two are chemical compounds that can be flammable and cause serious health issues.





                 

Friday, March 25, 2016

3 question blog 3/25

1. Recently, I have completed the stoichiometry test for chemistry. Two chaper tests for sociology. As well as a vocabulary test for english.

2. I have learned how much sleep affects a human being. If we do not get as much sleep it can lead to several illnesses. I have also learned how to calculate stoichiometry equations. Last but not least, I have learned how people act certain ways because of the norms we have in today's culture.

3.Next, I plan to complete a lab that examines what activation energy. I will work on completing the article readings for my sociology class. Lastly, I will work on focusing more and being proficient in the tasks I need to complete.

Friday, March 4, 2016

3 question blog

1) Recently I have completed a test for my sociology class. I have also completed reviews for test for several of my classes. And have also completed notes in chem.

2) Recently I have learned the different types of research methods. I have also learned how to do stoichiometry for my chem class using the white boards to help grasp a better understanding. I have also learned about the stages of adulthood and death in my psychology class.

3) Next I plan on completing my test corrections for chem. I also plan on reading for my sociology class. One last thing I plan on doing is taking the stoichiometry test and being proficient.

One last thing.....

Monday, February 29, 2016

Those guys & These guys

1) The class data for the vinegar and Baking soda showed that more gas should have been produced. This could have occurred because there was error in weighing the beaker when the reaction had not completely settled leaving air bubbles that had not yet released gas.

2) This relates to the balanced equation, which means that a formula must be equally proportionate on both sides, because the slope, rise over run, should be the same or somewhat similar as the ideal relationship. The balanced equation had given the ideal mass relationship because it tells us that there must be the same amount of gas produced in the product as their was in the initial maso or reactant.

3) Moles should have the same ratio in order to have a reaction. Just like an equation should be balanced.


Sunday, February 21, 2016

Rates of Reactions

1. The definition of rate of reaction is the time it takes for something to change chemically. 

2. The things that impacts the reaction rate include temperature, concentration, surface area, catalyst, and also observation. In the rates of Reactions lab, part 3 temperture, includedo the time it took for a glow stick to light up. It didn't light up as fast in cold water but more in hot water. 

3a. A real world example of a fast reaction could be the amount of time it takes for something to bake in the oven. A cake would take less time to bake in the oven if it was put in a higher temperature as opposed to Baking a cake in a lower temperature. 
3b. A real world example of a slow reaction could be the amount of time it takes for something to defrost as about to something that is barley taken out of the refrigerator. 


Friday, February 5, 2016

3 question blog

1. Recently I have completed my test for chemistry, psychology, and socialogy classes. I have read several chapters for english. I also made varsity for softball and completedo notes in the majority of my classes.

2. Recently, I have learned about the physical and mental development of children. I have also learned that people often put themselves at risk by the way they process and take in information. Also, about many sociologists and how much they have impacted today's economy.

3. Next, I plan on reading more chapters. Taking a long nap. Relaxing and going to the gym. And eating a lot of  food during our superbowl party. And of course, trying my best at excelling in all my classes and my sports as well.  :)

Vinegar and Baking Soda Explore Blog

1. The law of conservation of mass states that the mass of anything that includes the transferring of energy or matter, must remain the same or constant over a period of time. This lab shows the conservation of mass because when we first weighed the beakers separately, one with Vinegar and the other with Baking soda, and also weighed them together, there was not a great change compared to the initial mass. Instead, the mass of both Vinegar and Baking soda weighed less than they did separately.

2. From this reaction, we assume that the mass was lost from the initial mass to our final mass because gas was released. The beaker did not keep the mass because it was open. Therefore, gas was released into the air when both the vinegar and Baking soda made a reaction.

3. The evidence that can be shown to prove that mass is conserved and that our assumptions are valid include the effect that was caused by the vinegar and the baking soda. When the baking soda was poured into the vinegar, it bubbled which was an indication that gas was being held in the bubble and when it popped, the gas that was inside the bubble was released into the air. If we had a closed container than the mass might have been slightly different.




Saturday, January 23, 2016

3 question blog

Recently, I have completed the 6.1 and 6.2 notes. I have also finished a TPCASTT for English. I have learned how to calculate moles and also do Molecular conversions. Next, I plan on going to church, and taking a very long nap. I also plan to excel in this upcoming test on moles.

Hydrate Composition & Formula

• A compound is composed of two or more different elements, that are chemically combined.
      Ex. H20
• A mixture is made up of two or more different substances that are not chemically combined.
      Ex. Salt Water

A hydrate is a compound because when the hydrate was heated, it produced a chemical change. The evidence that proves it was a chemical change is how the color went from a blue to almost a white color. The calculations of the percentage of water was the mass of the hydrate that was determined before an after it was heated. The difference was the amount of water that was added.

Calculations:
50.95-50.01=0.94
Mass of hydrate= 1-0.55= .45
(0.45/1)= 0.45×100= 45%

In compounds, the ratios are constant. But in a mixture they are different. I believe that the amount of water in a hydrate provides evidence that can be proved through similar percentages. But in our case, many of my classmates had completely different percentages. That being said it was hard to gather more evidence that a hydrate is a compound other than the fact that it changed color.


Monday, January 11, 2016

The Bean Lab- An Investigation of Moles

1) There are 26 beans in a "pot" of beans. This is correct because when averaging the beans in a pot for all 5 bean types, the answer is 26.

2) The relative mass was used to determine the number of beans in a pot because, the relative mass is a ratio. It's determined by dividing the mass of the 50 beans by the smallest mass of the 50 bean types, which in this case, were the lentils. So, that being said it's used to determine the amount of beans in a pot.

3) A "pot" is a model of a mole because its an amount, or number of any given substance. Just as dozen is used to describe the number 12, or gross is used as 144 and so forth.

4) The relative mass is used for the mole because its simpler to find the mole based off the other massed of the beans.