Sulfuric acid

If the step for digesting the precipitate were omitted, the reported “percent limiting reactant” in the salt mixture will be too low. The purpose of digesting the precipitate is to make the filtering process more efficient. If this were to be omitted, the amount of product that is filtered would be decreased. If the product from the filtering process was decreased, then there will also be a decrease in the amount of the limiting reactant. In Part A.6, the solution precipitated and the filter paper

alixarenes are difficult to produce because it is too easy to end up with complex mixtures of linear and cyclic oligomers with different numbers of repeating units (Gutsche, C. D., Dhawan, B., No, K. H., & Muthukrishnan, R. ,1981). However, there are still effective methods to create it. Calixarenes can be divided into symmetrical as well as unsymmetrical, and both can be synthesized by different methods. Symmetrical calix[n]arenes with specific number of identically substituted phenol rings can

learned about pH. Why is pH so important? pH is a good indicator of the lakes healthiness.pH is a way to measure how acidic or how alkaline a body of water pH scale goes from 0-14 a zero is the strongest acid.  A reading of 14 would be the strongest base. Pure water is considered neutral-rather an acid or a base with a pH reading of 7 Indicator measure the pH in watersheds to determine whether the water is acidic/neutral, or base.Most living things have adapted to a life in water with specific pH. If

To test whether the salt concentration of water affects the amount of water a tissue paper can absorb, five different cups of water were prepared: 0g, 5.0g, 10.0g, 15.0g, and 20.0g of salt in 100mL of water. Different salt concentrations were used to replicate situations that involve spilling foods and drinks and having to wipe them away. First, using a glass cup, 100.0g of filtered water in room temperature was measured. Filtered water was used so that the mineral content of water is always constant

The most powerful traditional asthma medications can be obtained easily turn out to be an alternative to modern medicine, or used alongside modern medicine. Although the current type of modern medicine or chemical drugs are often under-united to cure the disease, but without us realize it in our environment there are many other types of natural medicine or herbal medicines that can help you heal, alleviate or prevent you from various diseases, one of which included asthma or shortness of breath.

This experiment is about glow sticks so here are some facts. Let’s talk about glowsticks and everything about them. Light is generated from a chemical reaction which is called chemiluminescence. Typical glow sticks use a hydrogen peroxide solution, a solution of phenyl oxalate ester, and a fluorescent dye. Glow sticks are plastic tubes containing glass vials that emit light when they are cracked/ bent. They have a glow time from 6-12 hours. It also depends on the size of the glow stick and other

The objective of this experiment was to determine the identification of the unknown copper (II) salt. The unknown salt was found to be copper (II) bromide. A calibration curve for copper (II) sulfate pentahydrate in Trial 1 was found by measuring the absorbance of the four different dilutions and the original solution as shown in Table I. The concentration of each solution was then calculated by multiplying the amount of moles in the original solution by the amount of original solution used in L

In this lab experiment our main focus was to get skillful in using tools such as the metric ruler, balances, thermometer, and graduated cylinder to capture measurements of length, mass, temperature and volume. Additionally, this lab helped us to become more familiar with the uncertainty of measurements, as well as becoming efficient with rounding our measurements to the correct numbers of significant figures. Our results are measured consistently with rounding to the closest answer we could possibly

Creek in Cumberland County, PA. I went to the creek to study the health of the creek itself (Phosphate levels, Nitrate levels, Dissolved Oxygen levels, pH levels, and Alkalinity levels). My hypothesis was: If I test the Conodoguinet Creek for signs of acid rain, eutrophication, or other types of pollution, then the tests will reveal that the creek is healthy and has very low levels of pollution. Eutrophication, is the excessive richness of nutrients in a lake or other bodies of water, frequently due

10. Carpet Deodorizer Training your pet is not easy. Expect to have the lingering smell of their urine everywhere, especially in spots where it will be very challenging for you to clean it up and remove the foul odor. Because pets have a keen sense of smell and you are too lazy to clean up your carpet, dogs are more inclined to pee in those areas where they used to do it. Remove the familiar ugly scent and stain by using a simple trick. First, mop the dog urine or use paper towels to absorb