Carbon Dioxide Content Lab Report

Stoichiometry is a very important part of chemistry. Stoichiometry refers to calculating the masses of molecules and their products . The reactants are usually given and stoichiometry is used to find the products of the equations as well balancing the equation. An example of this would be sodium chloride (NaCl). Stoichiometry will say that if there are ten thousand atoms of sodium and one atom of chlorine, only one molecule of sodium chloride can be made and that fact can never be changed.

Aim: The aim of the lab “Chemical Equilibrium” is to observe the effects of changes in concentrations of products and reactants on the position of the equilibrium of given chemical reactions.

The purpose of this lab is to observe the effect of white, green, and dark light on a photosynthetic plant using a volumeter and followed by the calculation of the net oxygen production using different wavelengths color of white and green light, and also the calculation of oxygen consumption under a dark environment, and finally the calculation of the gross oxygen production.

The goal of this lab was to determine the amount of grams of sodium bicarbonate (NaHCO3) required to produce enough CO2 gas to completely fill the lab and also how many Alka-Seltzer tablets that would equate to. This was done by collecting CO2 gas by inverting a buret and submerging it under water in order to calculate the volume of CO2 released from a fragment of Alka-Seltzer tablet. The main component of Alka-Seltzer is sodium bicarbonate, used to neutralize excess stomach acid during illness through the following reaction that generates CO2:

Fig. 12 CXL10-/- mice are relatively protected against FFC-induced liver injury and inflammation. WT & CXCL10-/- mice were fed either chow or FFC-diet for 20 weeks. (A) Plasma alanine aminotransferase (ALT) levels were measured. (C) Total RNA was extracted from liver tissue and mRNA expression of surface macrophage marker cluster of differentiation (CD)68 was evaluated by real-time qPCR. (D) Assessment of macrophage infiltration in fixed liver tissue was done by immunohistochemistry using macrophage galactose-specific lectin (Mac-2) antibody. Bar columns represent mean ± S.E.M. *** P < .001, * P < .05 compared to WT chow-fed mice.

|How might this change marine life populations? What impact could fifty years at this level of emissions have on marine fauna? On marine |

2. (5 pts) List and explain the names and affiliations of the various characters/stakeholders in this story – I’m looking for us to use the story to map out the complexities that are generally associated with solving public health puzzles – the stakeholders you list and explain here should apply to many of the cases we consider going forward.

All values on graph are just shown by height representing amount ignore the y-axis numbers, water having no CO2, glucose having the most, sucrose second most and fructose the least.

An unknown sample was massed and put into three test tubes for three different trials. A gas transfer assembly was put together and hydrochloric acid was added to each sample in each test tube. A reaction between the carbonate sample and the acid occurred and the volume of carbon dioxide gas produced was recorded. This process was repeated three times. The mass

In this experiment, the effect of temperature and agitation on soda will be observed. The pressure of a sample of soda will be observed at three different temperatures, and the pressure of the sample will be observed at those temperatures initially without agitation, and then with agitation for different amounts of time.

Comparing my Rebreathing Carbon Dioxide graph to my peers, I noticed that we all share an increase in both the breathing rate and depth. Talking to my peers, I noticed that we all mutually had the pressure of the pressure cuff go down once we finished this experiment. This release of pressure most likely occurred because during the different intervals – breathing normally, holding our breaths, slowly breathing, and breathing through the Ziploc bag – the kPa, or unit of pressure, gradually decreased. The relationship between breathing rate and breathing depth is that they strongly influence HRV, or heart rate variability. This is most efficient because the tidal volume decreases as heart rate does too, although the changes are insignificant.

The soda ash form experiment 3 was obtained. A 250 ml beaker was obtained and rinsed.

The Earth absorbs solar energy and most of this energy is later released as heat, or IR radiation.

Photosynthesis is essential to all living organism such as animals and plants. Photosynthesis is a process used by plants and other autotrophs to capture light energy and use it to power chemical reaction that converts carbon dioxide and water into oxygen, carbohydrates and water. (Textbook: Principles of Biology). The reactants and the products of photosynthesis are:

The most common point-of-use filtration media is activated carbon. Activated carbon is able to absorb organic and inorganic contaminates and are more commonly used to reduce any flavor or odor in the water2, 27, 28. In addition to the high surface area, activated carbon can chemically interact with heavy metals in the water. Most carbon materials like activated carbon are known to have high adsorption capabilities towards metal ions24. The pores of the carbon allow for trapping of large particles as well as increasing the available surface for contaminates to interact. Table 1 shows the overall size distribution of the activated carbon grains, average pore diameter and elemental composition of the activated carbon used for experimentation. The carbon has a rough exterior with many cavities and pathways for particles and ions in the water to filter (Figure 1).