Thiazole Reaction Lab Report

If the 0.2 g, 0.4 g, 0.6 g, 0.8 g, or 1 g (±0.1) of baking soda used in this experiment increases, then the volume (mL) (±0.5) of the carbon dioxide released from the decomposition will also increase.

The purpose of the lab was to determine the ratio of air to acetylene results in complete combustion of acetylene gas. The balanced chemical equation for this experiment was C2H2(g) + O2(g) --> CO2(g)+ H2O(l). Complete combustion is the reaction of an element or compound with oxygen to produce the most common oxides and energy. Complete combustion occurs when the fuel and oxygen combine in exact proportions to completely burn the fuel, which leaves a clean test tube. Incomplete combustion is the reaction of an element or compound with oxygen to produce some oxides with less oxygen than the most common oxides. Incomplete combustion occurs when there is not enough oxygen to react

The loudest pop and greatest distance travelled were both of the desired 2:4 ratio mole rocket. This is because it was the most efficient reaction and created the most product from the reactants. The ratios closest to that desired produced pops similar in volume but less loud, and as one created ratios farther from that desired the loudness decreased as well as the distance travelled. This is because the reaction used products that were farther from the stoichiometric ratio required to complete the reaction fully, allowing for the presence of a limiting reactant that limited the reaction once it finished and allowed for excess reactants to remain, signifying that the reaction was not completed and could not produce the amount of yield it could theoretically. The ratio 2:4 also propelled the mole rockets the longest distance- this data may be skewed for it is the product of a single trial,but it does support the trend in the data provided by the pop

(a) What is the capacity (saturation missing ratio) of the rising air at 3000 feet?

When calcium chloride, sodium bicarbonate, and phenol red are put into a bag and mixed up the type of reaction that occurs is a chemical reaction for the following reasons. Things that indicate that a chemical reaction has occurred are color change, formation of precipitate, formation of gas, and energy transfer in which three of them took place in the reaction of calcium chloride, sodium bicarbonate, and phenol red. The three indicators in this experiment were: a color change, formation of gas, and an energy transfer

4. Calculate the ratio of moles of copper produced to moles of iron used. Ratio 2 : 1

If one had weighed out precisely 0.500 g of KIO3 for the primary standard solution and dissolved it in enough

Determine the VOC in Element A: You will need to multiply 2.8 pounds of VOC per gallon

+ C6H8O7(aq) → 3CO2(g) + Na3C6H5O7(aq) + 3 H2O(l) The C6H8O7(aq) is the limiting reactant. (see calculations above) It is necessary to adjust the height of the graduated cylinder when reading the meniscus to ensure that the water pressure does not affect the pressure of the recovered gas volume being measured.

Once you have the mass of the gas, calculate the number of moles of CO2 that were produced in the chemical reaction between the vinegar and the 2 Alka-Seltzer® tablets?

Both experiments were able to determine the yield of hydrogen gas by testing the effect of limiting reactants, balanced equations, stoichiometry, mole ratios and molar masses. Balanced equations are equations that have a balanced number of moles of each element on both sides of the equation. Molar mass is the sum of the atomic masses of all elements combined in a chemical substance. Mole rations can be determined using the coefficients of the reactants and products in the balanced equation. Mole ratios can be used to relate moles of product formed from a certain number of moles of a reactant. Stoichiometry is the method of using the relationship between two or more substances in a chemical reaction. The limiting reactant of a chemical reaction is the reactant that is used up first in the reaction and limits how much of the product can be formed. In experiment 2-1, a company wanted to know if magnesium or aluminum would be practical to use as an alternative to zinc to produce a given volume of hydrogen gas. In experiment 2-2, the company wants to know how to optimize the production of hydrogen gas and whether hydrochloric or sulfuric acids are reasonable alternatives for gas production. The The reactions performed in experiment 2-1

What was concluded when doing the lab was to determine which product of the equation was the limiting reactant. When doing all the calculations were 83.1% of the yield of the compound. It is very close to having almost the perfect percentage of the limiting yield when doing the

=0.353g O_2 1.002×〖10〗^(-2) mol O_2×(32g O_2)/(1 mol O_2 ) =0.321g O_2 percent yield=(0.321g O_2)/(0.353g O_2 ) ×100%=90.9% Post-lab questions What is the purpose of waiting for some bubbles to escape from the gas collection tube before collecting the oxygen

Set up conversion factors. To convert 1.07 n of Na to atoms, use the conversion factor with the denominator the same as the given for cancellation.

Let’s start with HNO3: m= 725g, M=63.02g/mol, therefore n= 725g/63.02g/mol=11.5mol ("NITRIC ACID"). Now C7H8: m=750g, M= 92.05g/mol, thus n=750g/92.05g/mol=8.15mol ("Toluene"). Afterwards, using the equation 3HNO3(aq) + C7H8(s) → C7H5N3O6(s) we can determine the ratio between C7H8 and HNO3, which is 1:3, therefore HNO3 is the limiting reactant. To ding the number of moles there are in TNT, we will have to multiply the moles of the limiting reactant by the ratio of TNT and HNO3: 11.5mol of HNO3 x 1mol of C7H5N3O6/ 3 mol of HNO3= 3.83mol of C7H5N3O6. Afterwards we use the formula of n=m/M and m=