If you have 72 g of sodium sulfate, calculate the sodium, sulfur, and oxygen atoms that are present in this sample.

Q: Chemical analyses conducted by the first Mars Rover robotic vehicle in its 1997 mission collected…

A:

Q: An unknown compound is processed using elemental analysis and found to contain 117.4 g of platinum,…

A: We know that,  Number of mole = given mass/molar mass Atomic mass of platinum =195.084 g

Q: A sample of hydrogen sulfide, H2S, had a mass of 51.00 g. Calculate the number of hydrogen sulfide…

A: Given, mass of H2S = 51.00 g number of H2S molecules = ? Note:  molar mass of H2S = 34.1 g/mol

Q: Assume the atomic mass of element X is 22.99 amu. A 22.42−g sample of X combines with 123.73 g of…

A: Mass of X = 22.42 g Mass of Y =123.73 g Atomic mass of element X = 22.99 amu Atomic mass of element…

Q: A sample of ammonia Nh3 contains 1.2 X 1023 hydrogen atoms. How many NH3 molecules are in the…

A: Ammonia (NH3) is a molecule that exists as a gas at Standard temperature (298 K). It contains atoms…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: 1- First calculate the moles of compound XBr3  moles of XBr3 = ( moles of Br ) / 3  moles of XBr3 =…

Q: A certain organic compound has the formula C9H11O2.  A sample of this compound weighs 85.88 grams.…

A: The formula of the given organic compound is C9H11O2.  Mass of the compound=85.88 grams. The molar…

Q: A new computer chip contains 4.71×1022 Si atoms. Determine the mass (in grams) of the silicon…

A: 1 mole of any substance contains avagadro number of atoms i.e.6.022×1023 atoms.  6.022×1023 atoms of…

Q: Aluminum (Al) is element 13 on the periodic table. A sample contains 4.56×1022 atoms of Al.…

A: In this question, we will calculate the amount of Al in grams unit.  You can see below.

Q: 4. A chemist has a sample of propanol, C3H;OH, that contains 9.2 x 1024 molecules. What is the mass…

A:

Q: Consider a sample of aluminum nitrate that contains 1.72 × 10²⁴ atoms of nitrogen. What is the mass…

A:

Q: sample contains 52.0 g of elemental phosphorus, P4. Determine the number of moles of P4 and the…

A: Given ,  sample contains 52.0 g of elemental phosphorus, P4. To Determine the number of moles of P4…

Q: A 150.0 gram sample of a white powder contains 61.05 g of carbon, 7.65 g of hydrogen, and 81.30 g of…

A:

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: In an experiment 0.500 g of nickel reacted with air to give 0.704 g of nickel oxide. What is the…

A: Given data,Mass of Nickel=0.500gMass of Nickel oxide=0.704gMass of oxygen=Mass of Nickel oxide-Mass…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: We have to calculate molar mass of metal and it's identity.

Q: Calculate the mass of fluorine (in g ) contained in 61.0 g of copper(II) fluoride.

A: 1.Copper (ll) flouride is CuF2 . 2. Given mass of CaF2 is 61. 0 g    Mass of fluorine (F) =?

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: Chemical formulas can be written as empirical formulas, molecular formulas, or structural formulas.…

A: The solution is given below -

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: Calculate the mass, in grams, of sample. 1.8x10^23 lead atoms

A:

Q: Consider a sample of carbon tetrafluoride that contains 1.01 × 10²⁴ atoms of fluorine. What is the…

A: Formula for carbon tetrafluoride is CF4

Q: Calculate the number of grams of lead contain 1.2 x 1024 atoms of lead.

A: Given: lead contain 1.2 x 1024 atoms of lead. To find: Calculate the number of grams of lead contain…

Q: A 1.512-gram sample of aluminum metal was burned in the presence of oxygen gas, forming 2.857 grams…

A: Given,  1.512 g of Aluminium burns in oxygen gas to give 2.857g of binary oxide.

Q: Element A is an atomic element, and element B is a diatomic molecular element. Using circles to…

A: It is given that element A is an atomic element and circles are used to represent the atoms of A.…

Q: Calculate the mass, in grams, of sample. 1.1x10^23 gold atoms

A: Given: Gold sample with 1.1x1023 number of atoms.

Q: The element silver (Ag) has two naturally occurring isotopes:109 Ag and 107Ag with a mass of 106.905…

A:

Q: The average mass of one atom of carbon is 2.00 x 10 –23 g. How many carbon atoms are present in a…

A: Given:Mass of one atom of carbon = 2.00 x 10 –23 g.Total mass of sample of carbon = 40.0 g.

Q: Is trying to discover information about an unknown metal in a compound. The formula for the compound…

A: Mass of XBr3 sample= 4.723 g Moles of Br = 5.313× 10 -2 mol

Q: Phosphorus is obtained primarily from ores containing calcium phosphate. If a particular ore…

A: Given information: The mass percent composition of calcium phosphate is 57.8% The amount of…

Q: Write the balanced chemical equation for the reaction of aqueous potassium hydroxide with aqueous…

A: Chemical equation is the representation of a chemical reaction, in which the reactants and products…

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.