(Not Answered) 8.38 g of a mixture of NaNO3 and Na,SO4 contains 2.44 g of sodium. What is the percent by mass of NaNO3 in the mixture? 5.13% 61.2% (Correct answer) 27.5% 72.5% 38.8%%

Q: 6) Chlorophyll has the formula Css H72 Mg N4 Os. How many grams of carbon are required to combine…

A: Given data Molecular formula of Chlorophyll : C55 H72 Mg N4 O5  Mass of Mg = 0.0011 g Atomic mass :…

Q: What is the mass in grams of 0.119 moles NaAl(SO4)2∙12H2O? Group of answer choices 50.7 g 43.1 g…

A: Mole is defined as the ratio of the mass of a compound in grams divided by the molecular mass of the…

Q: a 0.2356 g sample containing only AlCl, (133.33 g/mol) and BaCl, (208.23 g/mol) yielded 0.4637 g of…

A: Option C

Q: A 0.660 g sample of a pure hydrocarbon was completely burned. The products were 1.28 g CO2 and 0.421…

A: Given :  Weight of hydrocarbon = 0.660 gm  Weight of CO2 formed = 1.28 gram  Weight of H2O formed =…

Q: ▼ ▼ Part B Calculate the molar mass for Mn207, an oxide of manganese. Express your answer to five…

A:

Q: be

A: Based on formula weight we can calculate the % mass composition of constituting atoms/elements

Q: What is the empirical formula of a compound with 54.53% carbon, 9.15% hydrogen, and 36.32% oxygen…

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Q: One relatively common compound used in plastics manufacturing is composed of 24.3% carbon, 4.1%…

A: Given that One relatively common compound used in plastics manufacturing is composed of 24.3%…

Q: How many moles of sodium (Na) are there in a 50.0 gram sample of the metal?   Group of answer…

A: Correct option is - 2.17 moles Na

Q: give an explanation of the semi-empirical mass formula

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Q: Click in the answer box to activate the palette. Determine the empirical formula of a compound…

A: Empirical formula can be defined as the chemical formula representing the simplest whole number…

Q: What is the percent by mass of oxygen in morphine, C17H19NO3? Group of answer choices 71.55 6.72…

A: The molecular formula of morphine is = C17H19NO3 The percent mass of oxygen in the morphine is =?

Q: A 5.000 gram sample that contained NaCl and BaCl2*2H2O was heated. After heating the sample had a…

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Q: 9. What is the percent composition by mass of aluminum in Al (SO4)3 (gram 15.8% formula mass = 342…

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Q: Complete the table below for calculating the formula weight of the ionic compound aluminum sulfite,…

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Q: Given the following mixture of two compounds 60.00 g of X (MW =63.00 g/mol)(density 1.047 g/mL) and…

A: Mass of X = 60 gm Volume of Y = 680 ml

Q: A compound was analyzed and found to contain 52.17% C, 13.13% H and 34.78% O. What is the empirical…

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Q: Compound X has a molar mass of 104.01 g mol and the following composition: element nitrogen fluorine…

A: Molar mass = 104.01 g/mol Molecular Formula of X = ?

Q: Enter your answer in the provided box. Calculate the number of grams of Al in 266 g of Al₂O3. g

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: How many molecules are in each sample? 69.0 g N2 (Express your answer using three significant…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: When 4.970 grams of a hydrocarbon, C,Hy, were burned in a combustion analysis apparatus, 15.23 grams…

A:

Q: Find the empirical formula for a compound made of 55.20% Hg, 9.50% S, and 35.30% O.

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

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: A compound is 54.53% C, 9.15% H, and 36.32% O by mass. What is its empirical formula? Insert…

A:

Q: Calculate the theoretical percent composition of chloride in aluminum chloride (AlCl3). Group of…

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Q: Assuming one mole of compound, calculate the theoretical percentage composition of SO3. [MM (S) =…

A: Percentage composition  of element is defined as how much percentage of that element is present in…

Q: how to determine moleculure/ empirical formula from this  The elemental analysis of a compound…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: A molecule contains 16.623% hydrogen, 2.078% oxygen, and no other element except carbon. What is the…

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Q: Given the following mixture of two compounds 65.00 g of X (MW =69.00 g/mol)(density 0.830 g/mL) and…

A: Mass percentage of any substance is expressed as the mass of the substance divided by the total mass…

Q: Furnace H20 absorber CO2 absorber Sample When 3.366 grams of a hydrocarbon, C,H,, were burned in a…

A:

Q: QUESTION 30 Calculate the mass/mass percent of 8.46 g SrCI, in 117.0 g of water. O 6.74% O 7.23% O…

A: 1- First calculate the total mass of the solution : Mass of the solution = [ Mass of the solute +…

Q: 4 A compound is 64.9% carbon, 13.5% hydrogen and 21.6% oxygen. Its molecuia mass is 74 g/mol. What…

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Q: 2.050 g of an unknown sample contains H, S, and O. If the compound contains 0.0500 gHand 0.800 g of…

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Q: Mn2CrO4 Answer: Mn 48.65 % Cr 23.02 % O 28.33 %

A: Recall the following expression to calculate percent composition percent composition of an…

Q: The chief component of eucalyptus oil is X, which contains 77.87% C, 11.76% H and the reminder O.…

A: Assume you begin with 100 grams of unknown compound X.

Q: Calculate the mass of bromide from 12.9 g of sodium bromide. Group of answer choices 6.02 g 16.6 g…

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Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. What quantity in molecules of C₆H₈O₆ does a…

A: To find molecules of vitamin C, first convert mass in grams then divide it by molar mass to get its…

Q: An unknown compound has the formula CH₂Oz. You burn 0.1095 g of the compound and isolate 0.2674 g of…

A: Given, Chemical compound has the formula: CxHyOz Mass of compound = 0.1095 g mass of CO2 produced =…

Q: 1. An organic compound was found to contain 54.5% C, 9.2% H, and 36.3% O. a. What is the empirical…

A: The empirical formula is a chemical formula that shows the simplest ratio of elements present in a…

Q: A) Convert the following to Moles   (1) 2.03X1022 atoms of lithium, Li (2) 1.75 X1025 Formula Units…

A:

Q: The compound NHxNO3 contains 5.04% hydrogen by mass. What is the value of x? Enter your response as…

A: Given  % Hydrogen =  5.04 %  formula of compound  = NHxNO3 Value of x = ?

Q: 2-A gas sample is found to contain 39.10% carbon, 7.67% hydrogen, 26.11% oxygen, 16.82% phosphorus,…

A: % of Carbon ( C ) = 39.10 %% of Hydrogen ( H ) = 7.67 %% of Oxygen ( O )= 26.11 %% of Phosphorus ( P…

Q: This is the chemical formula for zinc bromate: Zn (BrO3), Calculate the mass percent of bromine in…

A: Given, Chemical formula for zinc bromate: Zn(BrO3)2 Mass percent of Bromine in zinc bromate = ? %…

Q: Select the single best answer. The molar mass of caffeine is 194.20 g. Is the molecular formula of…

A: