Chemistry

A:

The molar mass of carbon monoxide or CO is 28.01 grams per mole. Scientists determine the molar mass of a compound by adding together the atomic mass of each element contained in the molecule. The atomic mass of carbon is 12.01, and the atomic mass of oxygen is 16.

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  • How are colloids classified?

    Q: How are colloids classified?

    A: Colloids are generally classified into four types: emulsion, sol, aerosol and foam. The combination of fog and smoke makes up an aerosol, which is comprised of solid particles or liquid droplets dispersed throughout a gas phase. Mayonnaise is an emulsion, which are two liquids dispersed together.
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  • What are some examples of chemical properties?

    Q: What are some examples of chemical properties?

    A: Examples of chemical properties include toxicity, flammability and chemical stability. Measuring these properties involves observing their effects on laboratory animals, testing with a flame or observing changes over time. In each instance, a chemical change occurs.
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  • What happens when oxygen reacts with copper?

    Q: What happens when oxygen reacts with copper?

    A: The combination of oxygen and copper produces the substance called copper oxide. The formation of copper oxide requires a specific formula; the creation of this element ultimately produces a gas that resides in the atmosphere.
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  • How is chemistry related to the study of pharmacy?

    Q: How is chemistry related to the study of pharmacy?

    A: The study of chemistry is integral to the study of pharmacy, since pharmaceutical science studies how different medications react chemically with the chemicals within the human body. Life itself can be summarized as the sum total of chemical reactions within an organism. Pharmaceutical substances are designed to control or otherwise alter those reactions. Pharmacists are experts in dosages and related topics, while pharmaceutical science studies the chemistry.
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  • What makes fireworks whistle?

    Q: What makes fireworks whistle?

    A: Whistling fireworks require two components: an explosive mixture that makes a sound when it burns and an empty portion of the rocket tube to act as a resonance chamber. The gas released creates the noise, while the chamber allows the sound waves to build on each other to earsplitting volume.
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  • Is distilled water the same as sterile water?

    Q: Is distilled water the same as sterile water?

    A: Sterile and distilled water are both essentially pure H2O, but each is used for different purposes. Distilled water is distributed for use in laboratories and for ordinary consumption. Sterile water is used in the medical community as a wound cleanser or an intravenous fluid.
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  • What is magnesium sulphate paste?

    Q: What is magnesium sulphate paste?

    A: According to the website Drugs, a magnesium sulphate paste is a drawing ointment for boils and carbuncles. Sold as a prepackaged over-the-counter ointment, the paste is comprised of dried magnesium sulphate, phenol and glycerol. The paste is designed to dry out skin infections.
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  • What is SiO2?

    Q: What is SiO2?

    A: Silicon dioxide, or SiO2, is commonly known as sand or quartz. It exists naturally in Earth's crust. It also exists in the biology of plants, animals and water.
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  • What are some everyday uses for bromine?

    Q: What are some everyday uses for bromine?

    A: Bromine is used in everyday products such as pesticides and water treatment solutions. Bromine is a reddish-brown gas that has a pungent smell and can irritate the skin, nose and eyes. Bromine was discovered in 1826 by A.J. Balard.
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  • Why do metals rust?

    Q: Why do metals rust?

    A: Many metals oxidize and corrode, but rust, or iron oxide, is specific to ferrous metals such as steel. Rust is formed when oxygen bonds with an atom of iron to form an iron oxide molecule. This molecule is considerably larger than the surrounding iron molecules, so it quickly becomes dislodged and flakes off the surface. This exposes fresh metal that can also rust.
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  • Is water an element, compound or mixture?

    Q: Is water an element, compound or mixture?

    A: Water is a compound made of two atoms of hydrogen and one atom of oxygen. The hydrogen atoms are bonded to the oxygen atom by the sharing of electrons, called a covalent bond.
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  • What elements are in rubber?

    Q: What elements are in rubber?

    A: The two most common elements found in natural rubber are carbon and hydrogen. Eighty percent of the world's natural rubber supply is cultivated from rubber trees that grow in tropical climates such as Thailand, Indonesia and Malaysia. Rubber tree plantations can yield 30 to 35 grams of rubber per tree in a single day, which is then used in products such as heavy duty tires.
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  • How does magnesium react with oxygen?

    Q: How does magnesium react with oxygen?

    A: Magnesium has a very energetic combustion reaction with oxygen, where two atoms of magnesium bond with one molecule of oxygen gas to form two molecules of magnesium oxide. This reaction is extremely exothermic, releasing a great deal of heat and light, which is why magnesium fuses are used to initiate reactions such as the thermite reaction, and magnesium is used in flares for high visibility. The reaction of magnesium to oxygen is so energetically favorable that burning magnesium can steal the oxygen from both water and carbon dioxide, making these common methods of dousing flames ineffective to stop magnesium combustion.
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  • Why are metals shiny?

    Q: Why are metals shiny?

    A: Metals are shiny because metals contain free electrons that vibrate when they come in contact with light. When the electrons vibrate, they produce their own light. This is reflected back and is what creates the shiny, lustrous appearance of metal.
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  • How do you correct chlorine lock in your swimming pool?

    Q: How do you correct chlorine lock in your swimming pool?

    A: According to Home Guides, chlorine lock, or stabilizer lock, is a term misused by uneducated providers of pool advice. Stabilizer is a critical part of the important oxidation and reduction potential for the pool to maintain effective sanitation. Home Guides provides a guide on how to maintain a pool using stabilizer.
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  • What is the definition of "crude protein"?

    Q: What is the definition of "crude protein"?

    A: Crude protein is a term for the total protein content of a food source as determined by its nitrogen content. The term is most often used in scientific testing and on the labels of pet foods.
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  • What are some examples of erosion?

    Q: What are some examples of erosion?

    A: Examples of erosion include water erosion, wind erosion and ice erosion. These different types of erosion slowly wear down land structures over long periods of time. One of the most famous examples of a landmark created by erosion is the Grand Canyon.
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  • What is coal made of?

    Q: What is coal made of?

    A: Coal is a sedentary rock that varies in composition. It forms as organic material compressed under the layers of soil and more organic material above it.
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  • What did Dmitri Mendeleev discover in 1869?

    Q: What did Dmitri Mendeleev discover in 1869?

    A: In 1869, Dmitri Mendeleev discovered how to classify elements into a periodic table. Although other scientists had been trying to find a way to classify the elements, Mendeleev's version was the clearest and most systematic.
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  • What is the boiling point of acetone?

    Q: What is the boiling point of acetone?

    A: The boiling point of acetone is 56.05 degrees C (132.8 degrees F) at sea level. Like other liquids, this decreases as altitude increases.
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  • What are inorganic substances?

    Q: What are inorganic substances?

    A: Most inorganic compounds do not contain carbon; however, in those inorganic substances that do contain carbon, carbon-hydrogen bonds are absent. Organic compounds always contain carbon and almost all have carbon-hydrogen bonds, according to About.com
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