Calculate the molar mass (M_m) of NaI in grams (calculate 1st the atomic mass, m_at ( you can use proton and neutron masses in u or in Kg), convert the m_at into grams;  then use the Avogadro number to calculate the M_m)

Q: Which of the following is equal to exactly Avogadro's number of atoms? 8.00 grams of oxygen 36.00…

A: To find which of the following is equal to exactly Avogadro’s number of atoms. 8.00 grams of oxygen…

Q: What is the molar mass (in g•mol⁻¹) of anhydrous iron(III) sulfate, to the nearest whole number?…

A: The given compound is  anhydrous iron(III) sulfate. The formula of anhydrous iron(III) sulfate is :…

Q: a) How many grams of carbon are in 34 g of C3H8 propane? b) How many grams of hydrogen are in 0.254…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: (a) Calculate the molar mass of ammonium nitrate, NH4NO3. (b) What is the mass percent of nitrogen…

A: (a) Molar mass of a molecule = sum of atomic masses of all the constituent elements      Molar mass…

Q: The mass of an organic compound was found to be 58.053 86 by mass spectrometry. Is the sample C₂HN₂,…

A: The solution is given below -

Q: 2. a) How many molecules are in 2.00 moles of H¿O? b) How many hydrogen atoms in 2.00 moles of H,O?…

A: Since you are posted with multiple sub-parts. As per the rule, I am answering first three sub-parts…

Q: Chemistry (1= T15HW Question 5 Homework Unanswered O Determine the percent by mass of both magnesium…

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Q: A tablet of Tylenol has a mass of 0.611g. It contains 251mg of its active ingredient, acetaminophen,…

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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: w many grams are there in 3.30x1023 molecules of N2I6?

A: number of moles of N2I6=given number of molecules6.022×1023=3.30×10236.022×1023=0.55 moles

Q: Calculate the mass in grams to 3 sig figs of 8.65x1022 atoms of aluminum

A: Number of atoms of Aluminum = 8.65 * 1022  atoms (given) Molar mass of Aluminium = 26.981539 g…

Q: 2-Calculate the number of atoms in each of the following masses:a.54.0 g of aluminum

A: Calculation of number of atoms.

Q: Be sure to answer all parts. How many H atoms are in 77.3 g of isopropanol (rubbing alcohol), C3H3O?…

A: We have to calculate  the number  of H atoms present  in 77.3 g of isopropanol alchol ( C3H8O)

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: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula C,H2n++…

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Q: How many molecules of CBR4 are there in a (1.63x10^2) g sample? Note: Your answer is assumed to be…

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Q: If a sample of urea, CH4N2O is 55% pure, what is the percent by mass of nitrogen in this sample…

A: Given that -  Percentage purity of urea , CH4N2O is = 55%  Molar/atomic masses are -  C = 12.01…

Q: How many atoms or ions of each element are in 164.5 g of the following substances?   (a) H2       ×…

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Q: Dinitrogen oxide (or nitrous oxide), N2O, also known as laughing gas, is widely used as an…

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Q: What is the mass of taurine if the number of moles is 0.4249 mol? What is the number of moles in…

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Q: Ammonium nitrate (NH4NO3) is a common fertilizer. Agronomists base the effectiveness of fertilizers…

A: 1) The mass percent of nitrogen in ammonium nitrate has to be calculated.

Q: Question 1

A: Balanced chemical equation of a reaction is written according to law of conservation of mass. Thus,…

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A: moles of element = (given mass ÷ total mass) molecular of N2O is 44

Q: 2. A student used a piece of aluminum that had a mass of 2.583 grams, and treated according to the…

A: The balanced equation for the given reaction is shown below:

Q: Complete question d

A:

Q: This number of particles is called Avogadro's number (NA) and has a value of... 6.02 x 10 – 23 0.602…

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Q: a) What is the mass, in grams, of 5.000 moles of carbon atoms? b)What is the average mass, in…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Question attached

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A: Reaction between CuSO4.5H2O with KIO3 that give Cu(IO3)2

Q: 3.59X 10 Unit Conversions: 1. Calculate the number of oxygen atoms in 19 grams of magnesium…

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Q: Which for every statement best describes the relationship between a mass of CH, and moles For every…

A: Given: CH4 To find: Relationship between mass of CH4 and moles Solution: Number of moles is the…

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A: Mole concept: According to the mole concept, the number of molecules or atoms present in one mole of…

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A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Calculate the percent by mass of each element in the following compounds. a. Methane, CH4 b.…

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Q: The chemical formula for t-butanol is: (CH;),COH Calculate the molar mass of t-butanol. Round your…

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Q: Determine the mass in grams of 1.6 x 10-3 mol glucose , C6H1206

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Q: True or False? True v The mass of 2 moles of sodium is > 23 g. False v The mass of one mole of…

A: Given,

Q: H. .C. II Three moles of the compound in the figure above would weigh how many grams? (The atomic…

A: Given  Moles = 3

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Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

A: The given term in the balanced equation is: 2Ba(OH)2⋅8H2O  The subscripts in a molecule represent…

Q: 1. The following compounds are nitrogen fertilizers. Which compound supplies the most nitrogen to…

A: Mass % of nitrogen = Mass of nitrogenTotal mass ×100

Q: Mass of crucible + Na + S 29.782 (grams) 4. Mass of crucible + Na 28.786 (grams) 5. Mass of Na 0.714…

A: Number of moles can be calculated as  Given mass/Molecular mass.

Q: Determine the number of atoms present in 30.0g  samples of each of the following elements? B Kr Fe…

A: The number of atoms in the sample of 30.0 g of atoms can be calculated by using the mole concept.

Q: *00 0.0 A 0.370-mol sample of a metal oxide (M2O3) weighs 55.4 g. How many moles of O are in the…

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Q: 4) Vitamin B3, also known as niacin, helps maintain the normal function of the skin, nerves, and…

A: Vitamin B3 also known as niacine.Of formula C6H5NO2.Tablets contains vitamin B3 or C6H6N2O.…

Q: 2.752 g sample of Ca(NO3)2×xH2O is heated to constant mass, the residue weighs 1.941 g. Determine…

A: Given that: Mass of Ca(NO3)2.XH2O = 2.752 g  Mass of residue left after heating = 1.941 g It mean…

Q: What coefficients would you need to balance the following equation, just put the coefficients in the…

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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".