Nicolle Bernard has been serving our country for nine years in the Air Force. Captain Bernard grew up in Madison, New Jersey and is currently stationed in Germany near the Ramstein Air Base. Nicolle is a strong woman who puts a lot on the line for our country.
At age fifteen Nicolle became interested in meteorology when starting her college search. Captain Bernard needed a way to pay for college, so when she discovered the Air Force she thought this was a perfect opportunity. She received…
The Case of the Mix-Matched Chemicals
Hypothesis: By measuring the pH of the unknown and known chemicals, the types of chemicals in the unknown bottles will become known.
Purpose: The purpose of this experiment is to determine the type of chemicals that are inside the mislabeled bottles.
• pH strips
• 8 bottles of known chemicals:
o silver nitrate
o iron (III) nitrate
o copper (II) nitrate
o sodium iodine
o sodium hydroxide
o nitric acid
o lead (II) nitrate
Determining Value for Money of Different Brands of Vinegar
Aim – To compare the amount of acetic acid found in two different brands of vinegar to see which is the most cost effective.
• Safety Glasses
• Hair Tie (If appropriate)
• 50mL burette
• 250mL conical flask
• 2 x Beaker
• Measuring Cylinder
• Standard solution of Sodium Hydroxide, NaOH(aq)
• Two different brands of vinegar
• Phenolphthalein Indicator
• A clean white tile
• Distilled water
on Schiff base ligand L and its metal(II) complexes were studied. The results showed that the optimal solvent for Schiff base ligand L, Co(II), Ni(II) and Cu(II) complexes were CH3CN at λemi =320, 310, 316 and 330 nm, while the optimal solvent for Mn(II) complex was DMF λemi = 312 nm, as shown in Figure 7. The effect pH on the fluorescence intensity of Schiff base ligand L and its metal(II) complexes were investigated between the pH range of 2.010.0. The influence of pH on Schiff base ligand L,…
Table 2: KHP Vs. NaOH Titration data
Initial KHP acid Volume (ml)
End KHP acid volume (ml)
Volume difference (ml)
Volume of NaOH Base Used (ml)
Table 3: Titration of HCl with NaOH
Initial NaOH Volume (ml)
End NaOH base volume (ml)
Volume difference (ml)
Volume of HCl acid Used (ml)
Acids and bases are often described using the Bronsted-Lowry theory which states that acids are proton donors, while bases are proton acceptors (Thorne, 78). This means that an acid has additional H+ ion(s) that can be given, whereas a base lacks these ions and will accept them. Acids and bases can further classified as strong or weak. A weak acid, such as HF, will not ionize completely, meaning that only some of the H+ ions will be lost. A strong acid will however, will release…
standards of continuity in some plants makes it possible that most of the sulphur dioxide produced is transformed to sulphuric acid and recuperated, but small fumes of sulphur dioxide are always released into the atmosphere putting in danger the ambient air quality and hence must be checked intermittently
This check involve constant monitoring of the production process and emission. For the monitoring of sulphur dioxide, emission monitoring equipment should be installed, monitoring reports…
fish muscle differed depending on the season.
g/100 g ﬁsh muscle Chemical constituents
77.30 ± 0.53 Moisture
18.85 ± 0.34 Crude protein
2.50 ± 0.29 Total lipid
1.51 ± 0.61 Ash
Table (1): Proximate chemical composition of sea bass fillets (on wet bases).
Values are mean ± standard error from triplicate determinations.
They also reported that there is an inverse relationship between moisture and…
water, which is made of hydrogen and oxygen, the hydrogen in the water can make a solution into an acid or a base. How do you tell if something is an acid or a base? You use a chemical called an indicator, which changes in color when it goes from an acidic to basic. There are many different types of indicators, some are liquids and some are concentrated…
Kidney stones are an extremely basic urinary issue. Also known as renal calculi, kidney stones are characterized by their high occurrence and a high repeat rate. This issue results from the arrangement of insoluble salt stores in the urinary tract and inside the kidney. The rate of this issue has expanded in the course of recent years for reasons that are not entirely known, but have caught the consideration of numerous scientists. There are different types of kidney stones, each…