Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is C63HggCoN14014P. A lack of this vitamin in the diet can lead to anemia. Cyanocobalamin is the form of the vitamin found in vitamin supplements. What is the molar mass of cyanocobalamin to two decimal places? g/mol

Q: The use of freons is being phased out because of the damage these compounds do to the stratospheric…

A: a.

Q: What volume (in L) does a 3.88 mol sample of hydrogen gas occupy at STP? (Do not show your work in…

A: Number of moles is calculated by dividing the given mass with molecular mass

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A: 1 mole of Phosphoric acid and Ammonia react to form 1 mole Ammonium Phosphate

Q: A major component of gasoline is octane C8H18. When octane is burned in air, it chemically reacts…

A: The balanced equation for combustion of octane is given as - 2C8H18  + 25O2  => 16CO2 + 18H2O So,…

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A: Given, the mass of optical fiber = 1.19 x 103 lb/m            Length of each strands optical fiber…

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A: Given : Density = 0.534 g/mL Volume = 1.00 in3 Convert in3 into mL as follows. 1 in3 = 16.3871 mL

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A: The balanced chemical reaction is given below.

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A: Given that : Set of coins =6 coins that are three quarters, one nickel, and two dimes. Mass of one…

Q: A sample of vinaigrette salad dressing has a total mass of 188 g188 g , a total volume of 196 cm3196…

A:

Q: A particular beer is 6.50% ethanol by volume (C₂H₂O). If a single bottle of beer contains 750.0 mL…

A:

Q: If a cube of table sugar, which is made of sucrose, C12H22O11, is added to concentrated sulfuric…

A: Molar mass of Sucrose (C12H22O11) =12×Molar mass of each carbon atom + 22×molar mass of each…

Q: You are renting a car which is reported to achieve 13.7 km/L. How many miles will you be able to…

A: Given Mileage = 13.7 km/L Volume = 11.0 gallons 1 gallon = 3.785 L 11 gallons = 41.64 L

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A:

Q: How much water will overflow from a basin, if a solid block of glass, with a volume of exactly 101…

A: According to the Archimedes Principle, the mass of the floating body and the mass displaced by that…

Q: Ammonium phosphate ((NH4),PO4) PO, is an important ingredient in many fertilizers. It can be made by…

A: Given that, ammonium phosphate [NH43PO4] is an important ingredient in many fertilizers. It is…

Q: 7) Cats love to play with balls of yarn. If a 3.75 inch diameter ball of yarn weighs 0.110 lbs, what…

A: Given: Mass of ball = 0.110 lb Diameter of ball = 3.75 inch Radius of ball = 3.75 inch/2 = 1.875…

Q: Ammonium sulfate fertilizer is manufactured by reacting sulfuric acid with ammonia. In the…

A: Sulfuric acid reacts with ammonia to form ammonium sulfate. The equation for the balanced chemical…

Q: In the combustion of ethanol, 20.50 g of carbon dioxide gas was produced, What is the volume in mL…

A:

Q: A sample of an ethanol-water solution has a volume of 54.4 cm^3 and a mass of 49.9 g. What is the…

A: The mass of ethanol is - Mass = density×volume Mass = 0.789×54.4 Mass = 42.9216 gram   Then, total…

Q: Liposuction is a technique for removing fat deposits from various areas of the body. How many…

A:

Q: A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 0.0118 µmol of magnesium…

A:

Q: Wine goes bad soon after opening because the ethanol (CH,CH,OH) in it reacts with oxygen gas (0,)…

A: Given, ethanol reacts with oxygen gas and form water and acetic acid,amount of oxygen gas for…

Q: Carbon

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Ammonium phosphate ((NH,) PO, is an important ingredient in many fertilizers. It can be made by…

A: We have to calculate the mass of ammonium phosphate produced.

Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given  The mass of the 1 pill = 1.0g  Active ingredient contain in each pill = 5.5% i.e., (5.5/100)…

Q: Gaseous ethane (CH,CH,) will react with gaseous oxygen (02) to produce gaseous carbon dioxide (CO,)…

A: Gaseous ethane reacts with gaseous oxygen to form gaseous carbon dioxide and gaseous water. The…

Q: The combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium sulfate…

A: Given:  Combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium…

Q: What is 393.83 kJ/mol rounded to three significant figures?

A: Based on the significant figures rule, the number to be rounded off is followed by digit zero or…

Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given,2.0g pill contains 7.5% of the active ingredient by mass.Then,25 pills contains = ?

Q: A soda bottle is flexible enough that the volume of the bottle can change even without opening it.…

A:

Q: Ammonium perchlorate NH4ClO4 is the solid rocket fuel used by the U.S. Space Shuttle. It…

A: Reaction of Ammonium perchlorate can be written as NH4ClO4   ----> N2 + O2 + Cl2 + H2O + Energy…

Q: How many pounds of carbon dioxide (CO2) are generated annually due to driving a car based on the…

A:

Q: In the former British monetary system, one pound consisted of four crowns, each crown was worth five…

A: One unit is converted into other by multiplicative factor .

Q: Ammonium perchlorate (NH CIO) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A:

Q: 20. An object with a mass of 6.3 kg has a force of 7.1 newtons applied to it. What is the resulting…

A: The answers of the above questions are given in following steps.

Q: Suppose a student places a beaker on his balance and does not tare it. Then, he adds three…

A: Here you should understand that if you have nothing in the beaker it is the empty weight of beaker.

Q: quid octane (Ch3(ch2)6ch3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide and…

A:

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction…

A: The balanced reaction of water and carbon dioxide forming glucose and oxygen can be given as

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol…

A: First of all, assign molar masses to each reactant and product in the equation and then, from…

Q: -H,0 10 g C,H1,06

A: Dear student I have given answer to your question in the image format.

Q: Suppose a student places a beaker on his balance and does not tare it. Then, he adds three…

A: The data given is,   Before After distilled water 57.160 g 70.990  g sodium acetate 70.990…

Q: Blueberry high-fiber muffins contain 58 %% dietary fiber by mass. If a package with a net weight of…

A: Introduction :  We have to calculate grams of fiber in each muffin . Given: 58% dietary fibre by…

Q: A chemist adds 455.0 mL of a 5.23 mol L silver perchlorate (AgC10,) solution to a reaction flask.…

A: Volume of solution = 455.0mL. Molarity of solution = 5.23mol/L.

Q: A major component of gasoline is octane (CH₂). When octane is burned in air, it chemically reacts…

A:

Q: You are renting a car which is reported to achieve 10.1 km/l how many miles will you be able to…

A: Conversion of units: 1 gallon = 3.785 L 1 km = 0.62 mile

Q: What is the mass (in g) of a diamond that occupies 6.09 mL if the density of diamond is 3.51 g/mL?

A: Density = MassVolumeMass = Density x volumeso using this formula, we can calculate mass of substance…

Q: A major component of gasoline is octane (C8H18). When octane is burned in air, it chemically reacts…

A:

Q: To identify a liquid substance, a student determined itsdensity. Using a graduated cylinder, she…

A: Given data contains, Mass of the sample is 38.5g. Volume of sample is 45 mL. Density of propyl…

Q: What is the mass of a golf ball traveling at 88.1 ms1? The rest mass of a golf ball is 45.9 g, as…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".