A 22.15 gram sample of cobalt is heated in the presence of excess sulfur. A metal sulfide is formed with a mass of 40.22 g. Determine the empirical formula of the metal sulfide. Enter the elements in the order Co, S empirical formula =

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Q: Would [H+} be the same as Ka in this case?

A: To calculate the [H+] , we use the following relation:  pH = - log[H+]  or, [H+] = 10-pH

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Q: Question 7 Name the following OH NH₂ O 1-Aminophenol O 3-Amine-1-hydroxybenzene O 3-Hydroxyanililne…

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A: Concept based on thermodynamic laws.

Q: 20. If atoms with the Lewis symbols shown below are combined, what is the formula of the ionic…

A: The ionic formula of the above compounds can be calculated as follows

Q: O Na 00₂ Br Br 10. Br Br

A: To choose the correct reagent for the given reaction.

Q: Covalent and lonic Compound Nomenclature Part A The chemical formulas for various covalent compounds…

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Q: What would you multiply "grams of boron" by to get the units "atoms of boron" ? )( )( g B (number)…

A: Here we are required to find number of atoms present  in boron

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A: Concentration of unknown solution can be determined from the graph of concentration vs. Absorbance.

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Q: 3. Propose a reasonable mechanism for the reaction shown below. Include all mechanistic…

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Q: 8 Preparation of Epoxides Predict the major product(s) of the following reaction sequence. 1) NaOtBu…

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A: Coefficients are The numbers which are  placed in front of formulas to balance  the equation.

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Q: Use the following Lewis diagram for methyl acetate to answer the questions: :0: +++ 0 - 3 2 H 1 H H…

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Q: 에 : 0-H 안녕 :: : 0-H 데 :: 10:0

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A: By using ideal gas equation we have :    P V = n R T  Where P = pressure             V = volume…

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Q: Match each beaker with the set-up description in the Table 1 below based on the expected pH values…

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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.