On the experiment 1 solvent abilities: All solutes were expected to dissolve in water because water is known as “universal solvent.” Observation showed that many salts and sugars were able to fully dissolve in the water solvent, but corn oil did not (Figure1).The reason salts would dissolve into water solvent because water molecule carried partial positive charge on hydrogen atom and partial negative charge on oxygen atom; they could react with cation and anion from salts that have ionic bonds…
and [HI] will decrease.
4. 20 grams of magnesium were placed in a conical flask. Which one of the following solutions, if added, would produce 100 mL of hydrogen gas the fastest?
A. 100 mL of 4 M sulfuric acid
B. 200 mL of 2 M sulfuric acid
C. 400 mL of 1 M sulfuric acid
D. 50 mL of 8 M sulfuric acid
5. Why does the rate of reaction increase when powdered calcium carbonate is used instead of marble chips?
A. The powdered calcium carbonate acts as a catalyst.
B. There is an increase of the…
water pollution are arising and becoming more frequent from human actions everyday. One example of this is acid rain. Many scientists believe that the recent drop in aquatic life in our bodies of water around the world is owed acidic rain lowering the pH levels. Acid rain produced by coal burning industries flow into all bodies of water after falling on forests, fields, buildings, and roads. The acid rain eventually raises pH levels of surrounding bodies of water leading to it 's many negative…
light gray color and the strips of zinc added to solution were approximately 5 cm. When zinc was tested with water there were no noticeable characteristics of a reaction occurring, such as bubbling or a color change. When zinc was added to the weak acid H2SO4, at first there was no noticeable reaction, however,…
Truth: yes, thick moisturizer is good but a moisturizer must have lactic acid or emollient type properties. You can also use gel based moisturizers as skin can absorb these gel must faster than the normal creamy moisturizer.
Myth: Baiden mitten cannot help in dry skin and it is just a normal cosmetic product.…
Is Perrier Bad for You?
Perrier is carbonated bottled mineral water sourced from the Les Bouillens spring in Southern France. Although the water from the spring is already naturally carbonized, carbonic gas is added to it again as it is bottled. Because of the many health benefits this water promises, it became very popular among Americans who wanted to lead a healthy and active lifestyle. Perrier soon became a widely-used substitute for soft drinks or cocktails and has gained a reputation for…
Introduction: DNP and research question
The organic compound 2,4-dinitrophenol (DNP) is a crystalline solid with the molecular
formula C6H4N2O5. The molecule is soluble in water to some extent and is fully soluble
in sodium and potassium hydroxide solutions. The compound can also be explosive. It is
usually used in dye, weed killers, wood preserver, photographic development among
other things and it has even been used as a weight loss agent. In fact, it has been claimed
to be the king of the…
air to pass through. The semipermeable membrane covering the outer and inner shell membrane has an outermost coating called the cuticle to keep bacteria from entering the pores (Nelson, n.d.).
The experiment will be conducted to determine which acid or base corroded most of the eggshell in the given amount of time. There will be a control group placed into water to compare to the variable groups Diet Coke, Red Bull, and lemon juice. The dependent variable is the amount corrosion on the…
An acid is a proton (H+) donor
A base is a proton (H+) acceptor
EXPLANATION OF THE THEORY:
Acids are proton donors and bases are proton acceptors. A hydrogen ion is the same thing as a proton since hydrogen consists of a proton and an electron. When hydrogen loses an electron all that is left is a proton.
According to the Brønsted-Lowry theory of acids and bases, when an acid and a base react, a conjugate base and a conjugate acid will be produced.
EXP: acid + base à conjugate acid+…
The substances found on the victims of the crash can be easily identified through simple math. You start by taking the percent values of each element found in the substance and changing it to grams, where one percent equals one gram, so that each element is out of one hundred grams. After finding the grams, you find out the moles of each element by multiplying the gram amounts by the conversion factor, which is 1 mol over the molar mass of the element you are dealing with, 12.01 grams for carbon…