The theoretical value for the ration of moles of F to moles of Pt is (exactly) 4.  Calculate the percent error for the experimental value found in 3d.  found in 3d was .02814: .1137 and the name was Platinum Tetrafluoride

Q: Cyanocobalamin( vitamin B12) contains 4.34% cobalt by mass. what is the ,olar mass of…

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Q: An organic compound consists of carbon, hydrogen and nitrogen elements. Table Q6 show the…

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Q: Please expalin in steps with any fake data you want to help explain to me on how to solve - the…

A: Experimentally oxalate ion can be determined by the titrimetric method with the use of KMnO4 as…

Q: A chromium-containing compound has the formula Fe,Cr,O, and is 28.59% oxygen by mass. Findx and y.

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Q: From the following, pick those that are empirical forme

A: Simplest whole number ratio of constituent elements in a compound is called empirical formula…

Q: 02% hydrogen. What is the empirical formula of this co mical notation is case sensitive ur chemical…

A: Assume total mass is = 100 g Element  mass(g) Mole= Mass/Atomic mass  Simplest mole ratio C…

Q: A binary compound of nickel and oxygen contains 78.06% nickel by mass. Is this a stoichiometric or a…

A: Given information: A binary compound of nickel and oxygen contains 78.06% nickel by mass. Let mass…

Q: In a 6.43E1 g sample of NaHCO, how many grams of sodium are present? Use two decimal places in…

A: Mass of NaHCO3 = 6.43E1 = 64.3 g

Q: Lenthionine is composed of carbon sulfur and hydrogen a 5.000 g sample of lenthionine contains…

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Q: A stack of 500 sheets of typewriter paper is 1.9 inches thick. The thickness, in inches, of a stack…

A: Number of sheets in a stack = 3.01 × 1023 One mole contains Avogadro’s number of sheets. Therefore,…

Q: A sdent ne should she o use 0.S00 mole of sodium caarbonate (Na Co) for an experiment. How many…

A: Introduction If the values of moles and molar mass of any particular substance is known, then one…

Q: Chemical analysis shows that the oxygen-carryingprotein hemoglobin is 0.34 percent Fe by mass. What…

A: Heamoglobin is a protien for oxygen transport . The heam group in Hb is Fe metal. Binding of oxygen…

Q: Calculate the number of moles of potassium hydrogen phthalate (abbreviated KHP, chemical formula is…

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Q: e moles of a

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Q: An elemental analysis of a compound containing S and O produce 50.00 % S and the rest is oxygen.…

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Q: A 1.45-g sample of phosphorus burns in air and forms 2.57 g of a phosphorus oxide. Calculate the…

A: Empirical formula represents the simplest whole number ratio of elements present in a compound while…

Q: The percent by mass of nitrogen for a compound is found to be 63.7%. Which of the following could be…

A: Given -> Percent by mass of nitrogen = 63.7%

Q: Molybdenum (Mo) is element 42 on the periodic table. A sample contains 7.31x1022 atoms of Mo.…

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Q: A sample of a “suboxide” of cesium gives up 1.6907% of its mass as gaseous oxygen when gently…

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Q: Actual weight of Na,CO, used mass Na,CO, + beaker = 1니3.525 %3D mass beaker = 142.313 g %3D mass…

A: For Na2CO3, Molecular weight=2(Atomic weight of Na)+Atomic weight of C+3(Atomic weight of O)

Q: Find y n-Al= %3D use the follamng equation: ng mass of Sample = (n-H,-L5y )(65.4) + 27.0y m2య లఆ…

A: Given: Mass of sample = 0.090 g. And n-H2 = 2.720 × 10-2 moles.

Q: Define avagadro no and the how the molecular mass of the elements are decided?

A: Introduction Amedeo Avogadro was an Italian scientist known for Avogadro's law. The molecular mass…

Q: 1. A 4.00g sample of iodine was reacted completely with excess bromine. The mass of the compound…

A: We have to predict the empirical formula of compound.

Q: If 2.50 g of aluminum metal is heated in Fluorine gas it’s found that 5.28g will combine with…

A: Given data,  Mass of aluminium = 2.50 g  Mass of F = 5.28 g

Q: What are errors that could cause one of your mass percentage to be too high?

A: The three errors that results in high value of mass percentages are,(i)calibration error(ii) If mass…

Q: What advantage is there to using a counting unit (the mole) inchemistry rather than a mass unit?

A: Using counting unit as mole in chemistry is advantageous as with help of this we can inter convert…

Q: Use the References to access important values if needed for this question. A 12.57 gram sample of…

A: Mass of Chromium = 12.57 g Heated in excess Fluorine  Metal Fluoride formed  = 21.76 g Molar mass of…

Q: Fill in the gap  -------------- mass of sulfur dioxide is 64.07amu. One mole of sodium dioxide…

A: According to the mole concept, the one mole of any substance is related with different units of…

Q: Given the following data is collecte din a laboratory experiment. Calculated the empirical formula…

A: Given that,  Amount of copper wire = 1.596 g Moles of copper in copper wire = 1.596 g/63.546 g/mol =…

Q: (a) What is a hydrocarbon? (b) Butane is the alkane with a chain of four carbon atoms. Write a…

A: (a)Hydrocarbons are the organic compounds contain carbon and hydrogen atoms. Hydrocarbons are…

Q: How many moles of oxygen atoms are in 5.0E-1 moles of CO? Only give the numeric value of your…

A: The molecular formula of carbon monoxide ( CO ) suggests that one molecule of carbon monoxide…

Q: A sample of an oxide of vanadium weighing 4.589 g was reduced with hydrogen gas to form water and…

A: Solution :    The empirical formula gives the simple whole-number ratio of elements present in a…

Q: The percent by mass of nitrogen for a compound is found to be 46.7% Which of the following could be…

A: Given that the percent by mass of nitrogen in the compound is 46.7%.

Q: An element’s molar mass in grams per mole is numerically equal tothe element’s atomic mass in atomic…

A: An element's molar mass in g/mol  is numerically equal to the element's atomic mass in atomic mass…

Q: A 0.933 g sample of Nickle metal is heated in the presence of nitrogne gas forming 1.081 grams of a…

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Q: A 3.87 g sample of a hydrate of MnCl2 was heated to drive off the water. The anhydrous powder…

A: The mass of a hydrate of MnCl2 = 3.87 g The mass of the anhydrous powder after heating = 2.46 g We…

Q: The scuba tank of oxygen gas weighs about 16 kg. How many atoms of oxygen gas (O2) are there in the…

A: Molar mass of oxygen gas(O2) is 32 g/mol

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Q: The percent by mass of nitrogen for a compound is found to be 30.5%. Which of the following could be…

A: Percentage by mass of element in a compound  = Mass of element  × 100 / Mass of compound

Q: The percent by mass of nitrogen for a compound is found to be 46.7%. Which of the following could be…

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Q: 7.) How many molecules of H, are present in 7.5 grams of H,?

A: Since there are multiple questions, I am only solving the first one. If you want the other question…

Q: 4. A student obtains the following data. 25.2246 g mass of clean, dry and empty crucible 25.3372 g…

A: Magnesium ribbon when burnt in air undergoes a chemical change and yields oxide of Magnesium. The…

Q: A recently created iron-carbon compound is a component of Ironman’s armor. It was created by…

A: Given : Mass of Fe reacted = 5.214 g And mass of compound formed = 6.055 g Assuming the empirical…

Q: Problem attached

A: Moles of the given compound for each atom can be calculated as follows: n=mM where n: number of…

Q: In a lab, a grade 11 chemistry student measured 0.30g of solid magnesium metal. The student proceeds…

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Q: Use the References to access important values if needed for this question. Mn, S O, n H20 is the…

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Q: Calculate the mass in 20.0 moles of He.

A: The unit used to measure the amount of the substance is the mole. Given: Moles of He = 20.0

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.