A sample of phosphorus with a mass of 0.500 g is ignited to produce phosphorus oxide in a stream of pure oxygen. The phosphorus oxide has a mass of 1.145g. A separate experiment yielded the fact that the phosphorus oxide has a molar mass of approximately 285 g/mol. Find the empirical formula and molecular formula for the phosphorus oxide. Follow significant figures rules.

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A: Given -> Weight of H2SO4 = 35 gm Volume = 500 ml = 0.500 L (1 L = 1000ml)    

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A: Enthalpy of formation is the heat change for forming one substance. 

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A: The half-equivalence point of a titration occurs half way to the equivalence point, where half of th...

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Q: Which change to an equilibrium modure of this reaction results in the formation of more HS The decom...

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A:

Q: Determine the molarity of a solution with a volume of 402. mL and 0.690 mol of solute dissolved.

A: Given :-  no.of moles of solute = 0.690 mol  volume of solution = 402. mL  To calculate :-  molarity...

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A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

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Q: What is the purpose of rinsing and disinfection in hemodialysis treatment?

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance. 

Q: Reacting a 9.0 g sample of carbon and sultur with oxygen forms 19.3g of CO, and SO, combined Part A ...

A: Given: Mass of sample = 9.0 g. And mass of CO2 and SO2 formed = 19.3 g.  

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Q: Write the ground state electronic configuration of the following Si As *3 Fe*3

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Q: Question 12 Consider the titration of 50.0 mL of 0.350 M NH3 (K, = 1.74x10 5) with 100 mM HCI. What ...

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A: given :- concentration of C6H5NH2 = 0.0015 M  Kb for C6H5NH2 = 3.80 × 10-10  To calculate :-  pH of ...

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A: Given- Concentration of acid = 0.0060M pKa = 4.40    

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Q: Which of the following compounds has the longest wavelength for C=C?

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Q: 8.2 Distinguish between a boson and a fermion. Provide examples of each type of particle.

A: We have to discuss the distinguished between a boson particles and fermion  with example.

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.