1. What is mass spectrometry? What is the advantage of this technique in chemical analysis?

Q: * Question Completion Status: Barium oxide was synthesized form the reaction of barium and oxygen in…

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Q: What is the mass % of carbon in dimethylsulfoxide (C2H;SO)? (C= 12.011 amu, H = 1.008 amu, S =…

A: The % of carbon in dimethylsulfoxide (C2H6SO) is: Atomic masses of C = 12.011 amu, H = 1.008 amu, S…

Q: What is the empirical formula of C4H7N? Explain how you know.

A: Chemical formula tells us how many atoms of each element present in compound. Empirical formula…

Q: 3) Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

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Q: 13) How many grams are there in 4.50 moles of Ba(NO2)2?

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Q: About Gravity, tick only the incorrect alternative(s), choose one or more: a) In gravimetric…

A: Gravimetric analysis is a technique used in inorganic labs to determine the amount of analyte…

Q: Consider that the combustion of an unknown amount of a hydrocarbon produces 0.2 moles of H2O.…

A: Given , 0.2 moles of H2O was formed

Q: Recently, scientists discovered a mysterious element, Q. It has an average atomic weight of 2021.1…

A: Average atomic weight an element is calculated as follows:

Q: You have two substances with known mass percentages. How would you determine if they were the same…

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Q: Mass Percent of Oxygen (theoretical) 3 (Molar Mass of O) Molar Mass of KClO3 x 100

A: For the potassium chlorate (KClO3)  Using the molar mass of oxygen and KClO3 we can calculate the…

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Number of iron atom = 1 Mass percent of  Fe in the compound = 0.330 %

Q: Urea was the first biologically-derived compound to be synthesized in the laboratory from inorganic…

A: Given :- chemical formula of urea = CO(NH2)2  To calculate :- Its formula weight

Q: Describe the High-Resolution mass spectrometry can reveal molecular formulas.

A: The high-resolution mass spectrometry and low-resolution mass spectrometry are used to determined…

Q: 1. As(III) can be determined gravimetrically as As2S3. The weight of As2S3 obtained from a 0.5000 g…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: You are helping to clean out the lab at the end of the term and find a bottle of liquid whose label…

A: Given : The bottle can have either C3H8O or C4H8O2 or both. Mass of sample burned = 0.300 g Mass of…

Q: Draw the molecular ion (M+) for this molecule formed in the mass spectrometer. - e- Drawing :O:

A: The objective of the question is to draw the molecular ion of the given molecule that is formed in…

Q: 1. Determine the molar mass of (a) potassium hexachloroiridate(IV), K2lrCls and (b) trifluorosilane,…

A: Determine the molar mass of the given complex--

Q: 8. Which of the following has a greater mass? A. 2.0 atoms of lead B. 5.1 x 1023 mole lithium Write…

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Q: 5. Aspartame is the artificial sweetener sold as a Nutrasweet and Equal sweetener over the counter.…

A: We have to calculate the mass% of each element.

Q: One carrot may contain 0.75 mg of vitamin A (C20H30O). How many moles of vitamin A is this?  How…

A: We would use relation between mass ,moles , molar mass to calculate the values.

Q: Ammonium nitrate is a common fertilizer. Agronomists base the effectiveness of fertilizers on their…

A: Formula of ammonium nitrate = NH4NO3 Molar mass of N = 14 g/mol Molar mass of O = 16 g/mol Molar…

Q: Rank the following in DECREASING order according to the mass percent of Cl: PCl5 SOCl2 Cl2O6…

A: Answer: To solve this question, calculate the mass% of chlorine in 1 mole of each compound mentioned…

Q: How many molecules are there in (4.87*10^ ^ 2) g CCl 4 ? Answer to 3 significant figures. Note: Your…

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Q: 1. Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 molesmoles of…

A: The number of moles of each atom present in a compound can be determined from its molecular formula.…

Q: The presence of which of the following cannot be easily determined from the mass spectrum of a…

A: We are given few element that are analyzed under mass spectrometer.

Q: your answer... choose your answer..... choose your answer... CH3COO CO3 NO2 OH MnO4 PO3 CN choose…

A: 1.Cation are the species which carry posative charge. 2. Anion are the species which carry negative…

Q: What is the empirical formula of a compound that is 42.85% C, 4.79% H, 33.32 % N and 19.03% O by…

A: Empirical formulas show the simplest whole-number ratio of atoms in a compound.

Q: A.How many moles of boron tribromide are present in 5.93 x 10^22 molecules of this compound?…

A: The molar mass of bromine tribromide  (BBr3) is 250.52 g/mol .

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of chlorofluorocarbon (CFC). CF2Cl2

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Q: A chemist records an ESI accurate mass spectrum of an intermediate during a synthesis. The desired…

A: The protonated ion for C29H31N3O8S is C29H31N3O8SH+

Q: What is the empirical formula of nicotine based on its elemental mass percent composition: 74.03%…

A: Steps to determine the empirical formula:  Step 1 : Convert elements percentage into grams  Step 2:…

Q: Identify the scientific law that is used in the process of balancing chemical equations. the law of…

A: 1. Given that : We have to identify the scientific law that is used in the process of balancing…

Q: 13. a. A compound consisting of carbon, hydrogen and chlorine is analyzed. It is found to consist of…

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Q: 7. A compound is composed of carbon, hydrogen and oxygen. It was analysed and the folloWIng results…

A: The empirical formula can be calculated as follows Mass of oxygen = mass of sample - mass of carbon…

Q: What is the mass of 3.45 moles of aluminum sulfate [Al2(SO4)3]?

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Q: Fictional, not on PT. I found a family of compounds that contain only A, X and Z elements in…

A: Empirical formula gives the idea about the simplest as well as whole number ratio of individual…

Q: A compound (molar mass= 324.41 g/mol) is used as a cardiac depressant. It has this percent…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: How could you distinguish the mass spectrum of 2,2-dimethylpropane from those of pentane and…

A: Mass spectrometry is an analytical technique that is used to measure the mass-to-charge ratio of…

Q: Find the % mass composition of calcium nitrate Ca(NO3)2 and water (H2O)

A: Given that - Compounds - Calcium nitrate Ca(NO3)2 and water H2O    % mass composition is the…

Q: An unknown compound has the following chemical formula: N₂Hx where x stands for a whole number.…

A: Given,Unknown compound moles of  nitrogen = 4.33moles of Hydrogen = 8.6

Q: 3) Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

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Q: 8. How many moles of magnesium is 3.01 x 102² atoms of magnesium?

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Q: The reaction between aluminum and chlorine gives aluminum chloride in 87.3% yield. a.write the…

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Q: Calculate the mass percent of each element in ZnCI2 ?

A: Mass percent of element =Mass of element in the compoundMolecular mass of compound​X100 Atomic mas…