Chemistry

A:

The molar mass of CH4 is 16.04 grams per mole. The molar mass can be calculated by determining the atomic mass of each atom in the formula. The chemical formula CH4 represents methane.

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  • What Are Some Examples of Natural Light?

    Q: What Are Some Examples of Natural Light?

    A: Natural light is produced by natural processes, such as the sun and stars. By contrast, man-made devices, such as flashlights and light bulbs, emit artificial light. All forms of light require the release of energy, and in the natural world, this includes explosions, fires and similar phenomenon.
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  • Why Are Metals Malleable and Ductile?

    Q: Why Are Metals Malleable and Ductile?

    A: Metals are malleable and ductile because they are made of hexagonal and cubic packed structures that can be moved by applying force to them. When force is applied, the atoms slide from one plane past atoms in a different plane.
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  • Why Is Water Considered a Polar Molecule?

    Q: Why Is Water Considered a Polar Molecule?

    A: Water is considered a polar molecule because it has a perceptible electromagnetic field that's grouped around a positive and a negative pole, like a magnet. This is a result of the special way that the atoms of a water molecule are grouped.
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  • Why Is the Periodic Table Called the Periodic Table?

    Q: Why Is the Periodic Table Called the Periodic Table?

    A: The periodic table's name comes from the fact that it arranges the elements into repeating sets, otherwise known as "periods." These periods are defined by the covalence of an element, the number of electrons it has in its outermost shell and by other elemental attributes. This arrangement places elements with similar chemical properties close to one another.
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  • What Does Aluminum Look Like?

    Q: What Does Aluminum Look Like?

    A: Aluminum is a dull silvery metal that has a bluish tint. It is ductile and malleable, and it is a good conductor of heat and electricity.
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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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  • What Is Tocopheryl Acetate?

    Q: What Is Tocopheryl Acetate?

    A: Tocopheryl Acetate is vitamin E. Other scientific names for this powerful antioxidant include Alfacol, Ecofrol, Tofaxin, Ephynal acetate, Econ, alpha-Tocopherol acetate and Tokoferol acetate, according to the National Library of Medicine.
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  • How Much Mercury Is There in a Thermometer?

    Q: How Much Mercury Is There in a Thermometer?

    A: The amount of mercury in a thermometer is about 3 grams. A mercury thermometer is used to measure the body temperature.
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  • How Are Chemical Bonds Formed?

    Q: How Are Chemical Bonds Formed?

    A: Chemical bonds form by the attraction the electrons of one atom to the proton of another atom. Common types of bonds include ionic, covalent and metallic bonds. The formation of the bond links the two atoms through the strong attractive forces, using a bond, a region where the electrons of the atoms interact with one another.
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  • What Are the Charges of the Noble Gases?

    Q: What Are the Charges of the Noble Gases?

    A: The noble gases have neutral charges. Because these elements have full outer electron shells, they are resistant to bonding with other elements. Scientists long thought that these elements were completely inert.
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  • Is Citric Acid Soluble in Water?

    Q: Is Citric Acid Soluble in Water?

    A: Citric acid is soluble in water to a great degree. In water of a temperature of 212 degrees Fahrenheit, 84 percent of the citric acid added to the solution is dissolved.
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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 Is the Molecular Weight of Copper?

    Q: What Is the Molecular Weight of Copper?

    A: The molecular weight of copper is 63.546 multiplied by the number of atoms present in the sample. Copper is an element rather than a compound, so the correct metric to describe its weight is either its atomic weight or its molar weight.
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  • Is It Possible for Kerosene to Go Bad?

    Q: Is It Possible for Kerosene to Go Bad?

    A: Stored kerosene can go bad. When kerosene is being stored, condensation can seep into the container and cause a problem. Sludge can develop from the mold and bacteria within the kerosene, and that causes it to break down.
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  • Is Neon a Metal or a Non-Metal?

    Q: Is Neon a Metal or a Non-Metal?

    A: According to the Encyclopedia Britannica, neon is a gas, not a metal. The source states that it is an inert gas and is one of the noble gases in the periodic table.
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  • What Are Coefficients in Chemistry?

    Q: What Are Coefficients in Chemistry?

    A: Coefficients are the numbers placed before the reactants in a chemical equation so that the number of atoms in the products on the right side of the equation are equal to the number of atoms in the reactants on the left side. If a written chemical reaction were not balanced in this manner, there would be no information available regarding the relationship between the reactants and products. Also known as stoichiometric coefficients, these numerical values demonstrate that the number of atoms on either side of the equation are equal to each other.
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  • What Is an Example of a Chemical Reaction?

    Q: What Is an Example of a Chemical Reaction?

    A: A chemical reaction occurs when a cake bakes. The materials in the batter are changed into a different substance. If the cake burns, that is a separate chemical reaction. In fact, any type of burning, such as a piece of paper or a stick of wood, is a chemical reaction.
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  • What Happens During a Chemical Change?

    Q: What Happens During a Chemical Change?

    A: Alterations to the electron-based ionic or covalent bonds between ions or atoms happen during a chemical change. Such changes result in one or more new substances with different physical and chemical properties. This type of change stands in contrast to physical changes which, despite sometimes closely resembling chemical changes, only produce a change in physical properties.
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  • Does Brass Rust?

    Q: Does Brass Rust?

    A: Brass does not rust. Only iron and its alloys, such as steel, rust. Pure brass contains no iron and is resistant to corrosion. Brass can develop a red or green tarnish that may resemble rust.
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  • How Was the Proton Discovered?

    Q: How Was the Proton Discovered?

    A: The proton was discovered by Ernest Rutherford through the gold foil experiment, says the Purdue University College of Science. The results of the experiment led Rutherford to conclude that the positive charge and the mass of an atom are concentrated in a tiny fraction of the overall volume. In 1920, Rutherford proposed that the positively charged particle in an atom’s nucleus be called a proton.
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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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