A 32.87 gram sample of X contains how many moles? (Assume that the molar mass of X is 54.05 grams per mole.) Report your answer to three decimal places.

Q: Suppose you have two balloons-one filled with hydrogen and the other with chlorine at the same…

A: Since the number of molecules of both atoms is same Hence moles =  number of molecules / Avogadro's…

Q: For the molecular compound phosphorus pentachloride, what would you multiply "moles of PCI5" by to…

A: To determine the multiplying factor to convert the moles of PCl5 to the number of molecules of PCl5.…

Q: Water has a molar mass of 18.0 grams H2O per mole of H2O. How many moles of H2O are in 9.00…

A: Note: 1000 mg = 1 gmass of H2O = 9.00 milligrams = 0.009 gramsmolar mass of H2O = 18.0…

Q: moles

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Q: Question 11 How many moles of carbon are present in 1.37 x 10 25 atoms of carbon? O 8.25 moles O…

A:

Q: The amounts of two elements X and Y in three samples of an unknown substance are as follows: 10.0 g…

A: The objective of the question is to identify the substance as mixture, compound or an element.

Q: The volume of a sample of copper is 7.14 mL.  The density of copper is 8.9 g/mL. How many moles of…

A: It is given that the volume of a sample of copper is 7.4 mL and the density of copper is 8.9 g/mL,

Q: A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.-g sample of this compound.

A: Stoichiometry allows us to make predictions about the outcomes of chemical reactions. Making useful…

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.