Calculate the Molar Mass of the following: 1) NaBr 2) PbS04 3) Ca(OH)2 4) N23PO4

Q: How many moles of Ca(OH)2 are present in 370.47 grams of Ca(OH)2?  2  3  5  6

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Q: What is the molar mass of the following compounds.            a. Epsom Salt, the chemical formula…

A: (a) Molar mass of Epsom salt ( MgSO4 . 7H2O ) = (24 x 1) + (32 x 1) + (16 x 4 ) + (18 x 7)…

Q: Calculate the mass of the element hydrogen present in 55.4g of the compound with molecular formula…

A: We have to calculate the mass of Hydrogen present.

Q: Upon burning Mg in air, magnesium oxide and magnesium nitride are formed. The correct statement…

A: Here, it is given that, upon burning magnesium in the air, magnesium oxide and magnesium nitride are…

Q: The compound benzene contains 92.26% C, the remain is hydrogen and has molar mass of 78 g/mol. what…

A: Molar mass of Benzene = 78 g/mol % of C = 92.26%  Molecular formula of benzene = ?

Q: The mass spectrum of an organic compound shows the relative abundances of MM to be 48.30%48.30% and…

A: Mass spectrometry is analytical that is used to determine the mass-to-charge ratio. The mass to…

Q: What is the mass percent composition of platinum in the carboplatin, C6H12N2O4Pt? Relative atomic…

A: Introduction :  The percent composition gives the mass percentage of each chemical element in the…

Q: Which one of the following has the smallest mass percent of F in the compound? A)SF6 B)NaF C)XeF2…

A: The details solution for this is provided below in attach image.

Q: Calculate mass recovered.  Calculate percent recovery.  initial mass: 2.09 g watch glass + filter…

A: The question is based on the concept of experimental calculations. we have to calculate mass…

Q: In mass spectrometry, there are patterns in the molecular ion region due to isotopic abundances.…

A: in mass spectroscopy we will see peak due to molecule ions which are formed after molecule undergo…

Q: 38) Sulfurous acid pand Salfer diml 1.239 of sulfurous acid unlergaes this reaction, what mass IS…

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Q: Which mass spectrum would be best for determining the molecular mass and the chemical structure of…

A: Mass spectroscopy is considered to be technique which gives an idea about the molecular mass of the…

Q: Calculate the percentage of carbon, hydrogen, and oxygen (by mass) in C12H22O11.

A: Each substance/molecule gets formed by combining some element's atom with certain proportion. The…

Q: For the compound (Ca(OH)2) or calcium hydroxide, find the per cent composition of the element…

A: Given: The atomic weight of Ca=40 Molecular mass of calcium hydroxide= 1 x 40 + 2 x (1 + 16)=74…

Q: How many grams of magnesium are required to produce 4.380 kg of Si? (At mass: Mg324.31: Si-28.09)…

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Q: What do the peaks of the mass spec of C6H10 show?

A: The structure of the unknown molecules can be obtained by analyzing their spectroscopical results…

Q: What is the molecular weight of a sample of ferrous sulfide heptahydrate (FeS-7H20)? (Round all…

A: Molecular weight of a compound is the sum of its individual atoms' malar mass.

Q: Consider a 1.0000 g sample containing 75% potassium sulfate (FW 174.25) and 25% XSO4. The sample is…

A: The reactions are given by, K2SO4 + Ba2+→ BaSO4 + 2 K+ MSO4 + Ba2+ → BaSO4 + M2+

Q: Give the molecules, atoms, and Ions in .150moles of Fe(OH)2 Fe= 55.45g O= 16.00g H= 1.01 g…

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Q: What is the alumina content in weight % of the garnet with Al as the only 3+ cation has Mg2.508…

A: It is given that Al and Mg2.508Fe0.492 are the part of mineral. The oxidation state of Al in the…

Q: Magnesium sulfate (M9SO.) O a. 1 O b. 2 О с. 3 O d. 4

A: Magnesium sulfate is an ionic compound. An ionic compound is made of cation and an anion. Here,…

Q: Give an overview of the method of mass spectrometry and how it works.

A: Mass spectrometry helps us to find the molecular mass of the unknown organic compound and also the…

Q: Calculate the mass percent of 2.50 moles of NaOH in 0.900L of water at 25 °C. (The density of water…

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Q: H,SO, (aq) + Mg(OH), (aq) (aq) (1) + 2.

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Q: What is the molecular weight of Ca3(PO4)2? amu

A: Determine molecular weight of the given compound---

Q: The mass percentages of 36.86 % N and 63.14 % O match At. wt.g/mol: N=14, O-16 O N2O4 O NO O N203 O…

A: The formula of compound is determined using percent composition.

Q: What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl =…

A: Molarity (M) : Number of moles of solute present in 1 litre solution is called molarity (M)…

Q: Calculate the percentege mass in KMnO4. [Relative Atomic masses of: K= 39, Mn= 55 and O= 16]

A: Consider the given relative mass of the atoms present in KMnO4 is as follows; K = 39, Mn = 55 and O…

Q: iron (II) phosphate Ca3(PO)2->Fe,N +COCNJ2+FePo4 1. How many grams of calcium phosphate must be used…

A: The stepwise solution is as follows -

Q: find the molar mass of tooth enamel the chemical name is  Hydroxyapatite   - [ Ca3(PO4)2]3Ca(OH)2

A: Calculating molecular weight by putting atomic weight of elements in compounds.

Q: 3. Use the following atomic masses (in g/mol): As = 74.92; O = 16; K = 39.1; Cr = 52; Na = 23; Cl =…

A:

Q: what is the mass percent of fluorine in C2Cl4F2 9.323% 11.78% 69.58% 18.65% or 5.893%

A: Mass percent is the mass of  total mass of element divided  by total mass of compound.

Q: What is the mass percent (mass %) of Cr in the same unknown salt? O 20.6 % 32.9 % O 8.78 % 13.5 % O…

A: The gram equivalents can be calculated easily if the normality and volume are given because the…

Q: The gemstone sapphire (see image) is mostly a compound of aluminum and oxygen that contains aluminum…

A: The gemstone sapphire is the mineral corundum. It contains aluminium cation and oxygen anion.…

Q: Find the molar mass of the following chemicals: Sodium (Na) Calcium (Ca) Xenon (Xe) Gadolinium (Gd)…

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Q: The element X forms the compound XOCl2 containing 59.6% Cl. What is element X?

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in…

A: Molar mass of heme (C₃₄H₃₂FeN₄O₄)  =  616.49 g/mol Molar mass of Fe = 55.85 g/mol Each mole of heme…

Q: For the compound (Ca(OH)2) or calcium hydroxide, find the per cent composition of the element…

A: Given compound is Calcium hydroxide Ca(OH)2 Atomic weight of  Ca = 40 g/mol O = 16 g/mol H = 1g/mol…

Q: A compound Y containing carbon, hydrogen and oxygen only have the following composition by mass: C:…

A:

Q: 19.18. What is the empirical formula of a mineral contg. 3.37% HO; 19.10% AlO: 21.00% CaO; and…

A: Empirical formula is the simplest formula of a compound which show ratio of atoms or molecules in…

Q: Which one of the following has the smallest mass percent of F in the compound? A) SF₆ B) NaF…

A: The mass percentage of fluorine is 78.04 %.

Q: Given the chemical reaction 5 (s) + 6 02 (g) → 3 SO2 (g) + 2 SO3 (g) Which of the following flux…

A: The possible flux relationships in accord with the given reaction are shown below.…

Q: Identify the principle component(s) of the essential oil from mustard. Determine the chemical and…

A: Mustard essential oil or volatile oil of mustard is an essential oil. It is mainly extracted from…

Q: 10) A patient is to be given 2 litres of 0.9% sodium chloride via intravenous infusion over a 24…

A: From given concentration of sodium chloride we can calculate the millimoles of sodium.

Q: Calculate the percent of hydrogen present in H2O A. 45.7 B. 88.8 C. 24.3 D. 11.2 E. 5.10

A: The Question is about to calculate the Percent of Hydrogen in Water.

Q: 4 g of Y reacts completely with oxygen. The following equation (ii) represents the reaction. 4 g Y…

A: From now onwards, please, post the question in English only. We have to predict the mass of product…

Q: the percentage of oxygen by weight in AL*2(SO*4)*3 atomic weight: al= 27, S= 32, O= 16

A: The given organic compound is as follows: Al2(SO4)3 = Al2S3O12 The atomic mass of O = 16 amu The…

Q: 1.00 g of hydrated potassium carbonate, K2CO3•nH2O, is heated to 250 °C to give 0.836 g anhydrous…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.