Write the chemical formula for each compound, and then calculate the number of atoms of oxygen in each sample.  a) 84.15g of boron oxide b) 225.87g of iron (II) nitrate c) 194.73g of copper (II) carbonate  d) 656.82g of calcium phosphate

Q: 0. present in a 20g sample of Sn Determine the number of atoms

A:

Q: This question pertains to ammonium bicarbonate. A) Estimate the mass percentage of oxygen in…

A: Molar mass of ammonium bicarbonate (NH4HCO3) = 79.056 g/mol  Mass of 1 mol ammonium bicarbonate…

Q: How many hydrogen atoms are in 790.58 grams of propane?

A: The moles of a substance is the mass of the substance which has equal quantity of basic units. The…

Q: Napthalene is an aromatic organic molecule that contains 10 carbon atoms and 8 hydrogen atoms. a)…

A:

Q: Find the molecular formula of a substance that is 48.20% iron, 10.37% carbon, 41.43% oxygen, and has…

A:

Q: Determine the number of atoms in 11.0 grams of nickel, Ni.

A: Given- Weight = 11.0 gm

Q: Be sure to answer all parts. Ethane and acetylene are two gaseous hydrocarbons. Chemical analysis…

A: EMPIRICAL FORMULA is the formula which shows simplest ratio of elements in a compound rather than…

Q: Determine the number of atoms in 21.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A:

Q: Describe how to find the number of Atoms in the following chemical formula. Use sentences! And…

A: To determine number of atoms first determine number of molecules and then determine number of atoms…

Q: 1. Calculate the mass of carbon in a 1-carat diamond that contains 7.56 × 1022 atoms of carbon.

A:

Q: Samples of several compounds were decomposed, and the masses of their constituents elements were…

A:

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: The elements present in the compound are given as Be, S and O. Hence we can assume that the…

Q: Calculate the mass of carbon in a 1-carat diamond that contains 7.56×10^22 atoms of carbon.

A: Since moles = number of atoms / Avogadro number Avogadro number = 6.022 X 1023  => moles of…

Q: DIRECTIONS: Write Tif the statement is correct, and F if the statement is incorrect. 5. The…

A: The true and false statement has to be given,

Q: Determine the number of atoms in 77.0 grams of bromine,  Br ( The mass of one mole of bromine is…

A: Number of moles of a substance is equal to the mass of the substance divided by its molar mass.

Q: A sample of trifluoroacetic acid, C,HF,O2, contains 62.1 g of oxygen. Calculate the mass of the…

A: The mass of oxygen in the trifluoroacetic acid, C2HF3O2 is = 62.1 g The mass of the trifluoroacetic…

Q: Calculate the number of moles of 5.65*10^15 atoms of  ^3H

A: The SI unit or the measure for the amount of substance is called Mole. “1 mole is equal to Avogadro…

Q: Determine the number of atoms in a 48.3-g sample of zinc.

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Determine the number of atoms in 47.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A: Number of mole(n)= weight(g)/(molar mass in g/mol) weight of Vanadium=47.0 g Atomic mass of…

Q: 35. A compound containing zine and sulfur was found to contain 67.09% zinc and 32.91% sulfur. What…

A: Correct Option : d. ZnS

Q: . How many ATOMS of carbon are present in 9.01 grams of carbon tetrachloride ?

A: Number of moles = mass/molar mass  Molar mass of CCl4 = 153.82 g/mol  1 mol = 6.022 × 1023…

Q: A carbon-hydrogen-nitrogen compound has a molar mass of 114.20 g/mol and it has the following…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: Calculate the number of molecules of iodine in a 4.62×105 g sample of iodine

A: Molar mass of I2 = 253.8g 1 mol of I2 = 253.8 g iodine 1 mol iodine = 6.022×1023 molecules of…

Q: Please provide all the work in detail because I will be using this to study

A: Consider the mass of compound is one gram.  The percent of each element is converted to grams as,

Q: Determine the number of atoms in 31.0 grams of bromine, Br. (The mass of one mole of bromine is…

A:

Q: Calculate the number of atoms in a 6.75×10^3 g sample of sulfur.

A: Calculate the number of moles of Sulfur

Q: [R Calculate the mass of 900. atoms of arsenic (As). Mass g

A: According to the question, we need to calculate the mass of 900 atoms of Arsenic. we know that: 1…

Q: Calculate the number of atoms in a 9.06×1039.06×103 g sample of strontium.

A: Calculate mole= mass/molar mass  Then atoms=mole×avagadro number

Q: Upon decomposition, one sample of magnesium fluoride produces 1.66 kg of magnesium and 2.58 kg of…

A: The values are given as follows:

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: Calculate the number of atoms of iodine in a 5.25×106 g5.25×106 g sample of iodine.

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: You have a 20.0 g sample of silver metal. You are given 10.0 g of another metal and told that this…

A: The situation is possible or not has to be determined.

Q: A sample of trifluoroacetic acid, C,HF,02, contains 25.3 g of fluorine. Calculate the mass of the…

A: One molecule of C2HF3O2 contains 2 atoms of carbon, 1 atom of hydrogen, 3 atoms of fluorine and two…

Q: How many atoms are present in 44.96 g of

A: Mass of scandium = 44.96 g Molar masa(MM) of Scandium = 44.96 g/mol Moles = mass/MM  = 44.96/44.96 =…

Q: Upon decomposition, one sample of magnesium fluoride produced 2.55 kg of magnesium and 3.99 kg of…

A: Given information, Magnesium is produced from the first sample is 2.55 kg. Fluorine is produced from…

Q: Determine the number of atoms in 61.0 grams of bromine, Br. (The mass of one mole of bromine is…

A:

Q: Calculate the number of atoms in a 9.06×103 g sample of strontium.

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.58 kg of…

A:

Q: Calculate the mass of 7.98x10 molecules of Zinc 27

A:

Q: In the Star Wars series, the death star is a spherical space station and weapon with a diameter of…

A: The diameter of death star is 99 miles. The diameter of solid iron sphere is 5.81 times larger than…

Q: Two binary oxides of the element manganese contain, respectively, 30.40% and 36.81% oxygen by mass.…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: 1.Calculate the mass of the following numbers of atoms =(3.01 = 10^21)atoms of cobalt

A: The question  is based on the mole concept. one mole of a compound contains avogadro number of…

Q: Determine the number of atoms in 33.0 grams of vanadium, V. (The mass of one mole of vanadium is…

A: Given is,  Mass of vanadium = 33.0 g Molar mass of Vanadium = 50.94 g/mol

Q: 2. Calculate the number of atoms in:   b) .23 mole gold, Au

A: Atoms are the smallest unit or the basic units of matter. It defines an element. Gold is an element…

Q: Upon decomposition, one sample of magnesium fluoride produces 1.65 kg of magnesium and 2.57 kg of…

A: The amount of magnesium produced on the decomposition of sample (I) of MgF2 is 1.65 kg. The amount…

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater…

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL…

Q: Determine the number of atoms in 53.0 grams of bromine, Br. (The mass of one mole of bromine is…

A:

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.