How many grams of Mg2+ are present in 2.76 grams of magnesium chromate?  ______grams Mg2+. How many grams of magnesium chromate contain 3.53 grams of Mg2+?  _____ grams magnesium chromate.   1. How many grams of N are present in 4.61 grams of nitrogen dioxide ?  ____grams N. How many grams of nitrogen dioxide contain 1.12 grams of O ? _____ grams nitrogen dioxide.

Q: by your instructor. Calculations 4. Calculate the mass of the hydrate (2 - 1) 5 Calculate the mass…

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Q: 1. How many MOLECULES of xenon trioxide, XeO3, are present in 6.25 grams of this compound? 2. How…

A: Since you have posted multiple questions according to guidelines I am solving first two.If you want…

Q: A model of the ethanal molecule is shown in the window below. progress ball & stick- + labels HO a.…

A: 1 mole = 6.022 x 1023 atoms/molecules/entities

Q: What is the mass in grams(a,b)/ name the ionic compound (c,d)/ name the ionic compound containing a…

A:

Q: C. The number of oxygen atoms in 7.35 g of barium nitrate. Ba(NO₂)

A: since you have asked for part C only, we are providing you a solution for part c only

Q: How many moles of nitrogen monoxide can be made from 10.18 moles of nitrogen dioxide? nitrogen…

A: Given, Moles of NO2=10.18 moles  Moles of NO= ?

Q: Which of the following statements is not correct? A. 12.01 g of C contains 6.022 x 1023 atoms of C…

A: 1 mol of any substance contains Avogadro's number of particles (atom/ion/molecule etc.). Avogadro's…

Q: The formula for disulfur decafluoride is S₂ F 10. a. How many grams of sulfur are present in 3.63…

A: Here, we have to find the mass of sulfur that is present in 3.63 moles of S2F10 and the number of…

Q: Consider aspirin (acetylsalicylic acid), C9H8O4 a. How much does one mole of aspirin weigh, in…

A: The formula of aspirin given is C9H8O4.

Q: 1. A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: We can calculate the moles of any substance from the following formula : Moles of substance = mass…

Q: 3. Find the mass (m) of the following samples in two decimal places. a) How many grams of sodium…

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Q: 15. Acetone, formula C.H.O. is an organic compound found in some solvents, and is also produced by…

A:

Q: A. How many grams of K+ are present in 1.44 grams of potassium sulfite? ________-K+ B. How many…

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Q: QUESTION 2 a. How many moles of Al203 are in 28.0 g of Al203? Report your answer to the correct…

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Q: Chemistry 1. How many MOLECULES of xenon triox are present in 4.72 grams of this compound? [____]…

A: Number of moles of any substance can be determined by dividing the given mass of that substance by…

Q: 2. a. What is the mass of one mole of caffeine (C8H10N4O2)? Show your work. Box your final answer.…

A: We know, molar mass of : C = 12.01 g/mol , H = 1.007 g/mol , N = 14.007 g/mol , O = 16.00 g/mol  The…

Q: question. 1. How many GRAMS of lead(II) fluoride are present in 4.04 moles of this compound? 2. How…

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

Q: How many grams of Cl are in 38.2 g of each sample of chlorofluorocarbons (CFCs)? Part A - CF2Cl2…

A: You must first determine the molar mass of each chemical and then calculate the mass contribution of…

Q: 6.11 × 1020 SOg molecules Express your answer in grams to three significant figures. m(SO3) = 15.…

A:

Q: 2 + 2 Mg3P2 ? Pb3P4 + 6 MgO How many moles of PbO2 do you need to produce 80 moles of MgO? How…

A: From the balance equation the conversion factor relating PbO2 and MgO is,

Q: How many grams of Cr3+ are present in 2.67 grams of chromium(III) chloride? grams Cr3+. 2. How…

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: a. How many grams of aluminum nitrite, Al(NO2)3, are present in 4.01 moles of this compound? grams…

A: a. Given: Moles of Al(NO2)3 = 4.01 Molar mass of Al(NO2)3  = 164.998 g/mol   Calculation for mass of…

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: An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: Oxygen gas is a diatomic molecule. How many mole are contained in 4.23×10exp14 molecules of oxygen…

A: This problem can be solved by knowing that one mole of any substance contains6.022×1023 particles.

Q: 1. How many grams of Fe2+ are present in 4.33 grams of iron(II) nitrate? grams Fe2+. 2. How many…

A: A mole is the basic unit of an element. It is an amount of substance that contains same number of…

Q: Canvas O AICI 4. O Al 3Cl. Question 5 What is the mass in grams of 0.8 mol of glucose, C 6H 120 6?…

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Q: Which of the following is not true for 1 mole of the compound (CH3)2O?          a.     It contains…

A: 1 mole of a molecular/atomic substance is that amount of the substance which has 6.022×1023…

Q: 1. A. What is the mass in grams of atoms of strontium? grams B. How many strontium atoms are there…

A: We have to apply mole concept

Q: How many grams of Cu+ are present in 1.32 grams of copper(I) phosphate?   grams Cu+. 2. How many…

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Q: a. How many grams of S are present in 4.88 grams of sulfur hexafluoride? Mass= g8 b. How many grams…

A: Answer:Molecular formula of sulfur hexafluoride:It means, each molecule of SF6 has 1 sulfur atom…

Q: A 0.6951 g sample of nicotine was analyzed and found to consist of 0.5147 g C, 0.06047 g H, and…

A: Molecular formula of nicotine- C10H14N2   Formula for percentage of element in a molecule = (amount…

Q: Glycine is an amino acid with the formula C₂H, NO₂. Determine the number of moles of carbon in 21.67…

A: Mass of glycine = 21.67 gMolar mass of glycine ( C2H5NO2 ) = 75 g/mol

Q: When 15.00 g of mercury (I) oxide decomposes, how many moles of oxygen gas are produced? _HgO _Hg…

A: Given :  When 15.00 g of mercury (ll) oxide decomposes, how many moles of oxygen gas are produced?…

Q: 6. Which of the following has more atoms? A. 1.10 g of hydrogen (H) atoms B. 14.7 g of chromium (Cr)…

A: Avogadro's number is the number of units in one mole of any substance which is equal to 6.023×1023 .…

Q: How many grams of Se are there in a sample of Se that contains the same number of moles as a 65.8…

A:

Q: iron(III) chloride A. How many grams of Fe3+ are present in 4.52 grams of iron(III) chloride?…

A: a) Mass of iron (III) chloride = 4.52 grams. Mass of Fe3+ = ?  b) Mass of Fe3+ = 4.96 grams  Mass of…

Q: a. What is the percent by mass of carbon in 44 g of carbon dioxide (CO2 )?b. What is the percent by…

A: The mass percent of an element in a compound is calculated by using the relation as shown below.…

Q: In N2O , 28 g N combines with 16  g O. Determine grams of O and N in NO2. Group of answer choices

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Q: What does a complete balanced chemical equation include? O molar coefficients O valence electrons O…

A: The representation of chemical reactions in terms of equations is called as chemical equations.

Q: 1. How many grams of Xe are present in 1.11 grams of xenon trioxide ? grams Xe. 2. How many grams of…

A: Xenon trioxide is a compound composed of two xenon atoms in +6 oxidation state and three oxygen…

Q: 1. How many grams of Fe" are present in 3.42 grams of iron(II) sulfide? grams Fe2+. 2. How many…

A: Molecular weight of iron(II) sulphide, FeS2 = 56 g/mol + (2 x 32g/mol)…

Q: 39. Convert 2.001x102 formula units of Ba3(PO4)2 to mass, in grams, of Ba3(PO4)2. Mass of Ba3(P04)2:

A: Avogadro's number equals to the moles of that substance which can be used to find its mass if its…

Q: 1. How many moles of NaOH (FW = 40g/mol) are there in 2.0 grams NaOH? 2. How many grams of Na2CO3…

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".