What number of atoms of nitrogen are present in 7.13 g of each of the following? glycine: C2H5O2N =                     atoms  magnesium nitride =                        atoms  calcium nitrate  =                    atoms  dinitrogen tetroxide  =                     atoms

Q: When 1.449 grams of a hydrocarbon, C,Hy, were burned in a combustion analysis apparatus, 4.441 grams…

A: The empirical formula represents the smallest number of each element in a compound, which is…

Q: If the sample has a molar mass of 176.0 g/mol, what is the molecular formula of the sample?

A:

Q: Fructose is a very sweet natural sugar that is present in honey, fruits, and fruit juices. It has a…

A: Given that, %C= 40% %H=6.7% %O=53.3% Molar mass of Fructose=180.1 g mol-1 Then,

Q: An unknown compound contains nickel, phosphorus, and oxygen. When analyzed, a 100.0 g sample was…

A: Molecular formula is defined as sum of masses of atoms in molecules.

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Number of iron atom = 1 Mass percent of  Fe in the compound = 0.330 %

Q: - 10⁹ m) The wavelength of a particular color of violet light is 421 nm. (1 nm = The frequency of…

A: Given that :The wavelength of the violet light = 421 nmWe have to calculate the frequency of this…

Q: Which of the following samples contains the largest number of atoms" O1 g of iron (Fe) O1 g of…

A: 1 g of iron (Fe) 1 g of glucose (C6H12O6) 1 g of sucrose (C12H22O11) 1 g of iodine (I2) 1 g of…

Q: An Organic compound contains 59.00% by mass C, 7.15% by mass H, 7.65% by mass N, and 26.20% by mass…

A:

Q: Be sure to answer all parts. For many years chloroform (CHCI3) was used as an inhalation anesthetic…

A: Here we are required to calculate the percent composition by mass of compound chloroform CHCl3

Q: Elemental analysis of a compound with molar mass 214.22 g/mol gives the following mass percent…

A: Given data,Percent of C=72.89%Percent of H=4.71%Percent of O=22.41%Molar mass of…

Q: Calculate the moles of glucose in 1.0253 g of glucose, C6H12O6. Then calculate the moles of each…

A: Given :-  Mass of glucose = 1.0253 g  To calculate :-  Number of moles of glucose and also determine…

Q: How many MOLECULES of water are present in 9.27 grams of this compound? A) 7.10 x 1023 molecules H,0…

A:

Q: For each of the following samples of ionic substances, calculate the number of moles and mass of the…

A: 4.25 g of ammonium iodide 6.31 moles of ammonium sulfide. 9.71 g of barium phosphide 7.63 moles of…

Q: When 6.360 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 21.50 grams…

A:

Q: Mass analysis of a common drying agent of organic molecules reveals that it has the empirical…

A:

Q: mass

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Q: Fill in the blank. One mole of any atomic, ionic or molecular substance is it's respective atomic,…

A: The atomic mass of an element is equal to the mass of one mole of that element. The molecular mass…

Q: Which of the following formulas—NO, N 2 O, N O 2 , N 2 O 4 ,and N 2 O 5 —represent the empirical and…

A: NO2 and  N2O4 represent the empirical formula and molecular formula of the same compound. Empirical…

Q: A patient is having an allergic reaction and takes a 25.025.0 mg tablet of the over‑the‑counter…

A:

Q: Calculate the number of oxygen atoms in 25.1 g of nitric acid. O 4.80 x 1023 oxygen atoms O 7.19 x…

A: The number of moles of a substance is the mass of the substance upon its molar mass.

Q: Calculate the number of oxygen atoms in 25.1 g of nitrous acid. 4.80 x 1023 oxygen atoms O 6.43 x…

A: Given,  Mass of nitrous acid = 25.1 g

Q: A 0.613 g sample of a covalent compound contains 3.13 × 1021 molecules. What is the molar mass (in…

A: We have 0.613 g sample of a covalent compound contains 3.13 × 1021 molecules . We have to calculate…

Q: A laboratory analysis of an unknown sample yields 73.13% carbon, 7.38% hydrogen, and 19.49% oxygen.…

A:

Q: An air conditioner compressor contains pure CClF3, also known as the refrigerant R-13. CClF3 has a…

A: We know that, density can be expressed as the mass per unit volume, i.e.…

Q: You can also calculate percent composition from a formula. This is similar to percent abundance in…

A:

Q: Calculate the molar mass of the elements (go to the nearest one if your answer does not exactly…

A: Given, mass of an element and atoms it contains.  To identify its molar mass and the Element. First,…

Q: Number of atoms of Carbon in 18 moles of C4H10 are: 433.58x10^23 7.48x10^23 O 108.40x10^23…

A: The number of moles of a compound can be obtained by Avogadro's number. It can be calculated as…

Q: When 1.717 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 5.805 grams…

A: Answer:The formula in which all the atoms are represented in their simplest integer ratio is called…

Q: The density of water is 1.00 g/mL at 4°C.How many water molecules are present in 2.56 mL of water at…

A: The density of a substance is the mass of the substance upon volume. The number of molecules is the…

Q: Some of the formulas could be either molecular or empirical formulas; however, some can only be…

A: empirical formula of a compound gives the simplest ratio of the number of different atoms present,…

Q: Analysis by mass of a certain compound shows that it contains 14 percent hydrogen and 86 percent…

A: The objective of the question is to determine the most informative statement that can be made about…

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in…

A: The question is based on the concept of chemical composition. we need to write the formula of the…

Q: How many moles of sulfur trioxide are present in 1.02 x 1022 molecules of this compound?  moles…

A:

Q: For each of the following gemstones, determine the mass of compound present in the given moles of…

A: Given  1) Formula = Be3Al2(SiO3)6     Number of mole = 0.0170 mole        mass    = ? 2) Formula   =…

Q: When 4.876 grams of a hydrocarbon, C,H,, were burned in a combustion analysis apparatus, 15.30 grams…

A:

Q: How is the molecular formula of a compound related to its empirical formula? They could be the…

A: Molecular formula can be defined as the chemical formula that represents true formula of the…

Q: O empirical formula O molecular formula reactants

A: A chemical formula in which the subscript represent the simplest whole number ratio of the atoms or…

Q: A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields…

A:

Q: Calculate the folowing   1-number of atoms in 6.54 g Be =37 x 1023 atoms 2-number of atoms in 28.0…

A: Number of Moles = (Mass of the Sample)/(Molar Mass)   Number of Atoms or Molecules = (Number of…

Q: What is the empirical formula of the compound?

A: The empirical formula is defined as the lowest whole number ratio of  elements present in a compound

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.