What is the molecular weight of a sample of ferrous sulfide heptahydrate (FeS-7H2O)? (Round all numbers to the h O A. 105.94 о В. 214.06 O C. 334.05 D. 225.93

Q: 33. How many hydrogen atoms are in 4 molecules of isopropyl alcohol, C;H-0? А. 2.4 x 1023 atoms of H…

A: Given, 4 molecules of isopropyl alcohol, C3H7O   Required,                Number of hydrogen atoms…

Q: what is the precent mass of oxalat in (K3Fe(C2O4)3·3H2O, 491.3 g/mol)?

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Q: • How many moles of Na Cl contain 3.49 x1025 There are ions? Z moles of ions per mele oE Nasl, cund…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Anything which is in the number of 6.022×1023 is said to…

Q: molar mass

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the empirical formula for the following compound C5H702CH3? O CSH,04 O C3H5O O C2H30 O…

A:

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: Note : As per our guidelines we are supposed to answer one question .please resubmit the other…

Q: 9. A compound with a molar mass of 42.08 g/mol is found out to be 85.64% C and 14.36 % H by mass.…

A: given, mass percentage of C = 85.64 mass percentage of H =14.36

Q: , A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: The empirical formula of a chemical compound is the simplest positive integer ratio of atoms present…

Q: An experiment requires that enough C,H1206 be used to yield 11.7 g of oxygen. How much C,H1206 must…

A: Given : mass of oxygen, O2 to be yielded = 11.7 g Molar mass of O2 = 32 g/mol Since mass = moles X…

Q: 3.121 Avogadro’s number has sometimes been described as aconversion factor between amu and grams.…

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Q: atoms

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Q: Calculate the mass CARBON in 0.0299 moles of C6H12O6.

A: A pure compound is that which contains its constituent atoms in fixed ratio by mass.C6H12O6  is a…

Q: mass

A:

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: 7. What is the mass of 1 mol of atoms of each element?(a) P (b) Pt (c) C (d) Cr

A: Mole is used to determine the amount of substance. One mole of a substance contains 6.022×1023…

Q: * ?Which one of the following is definitely NOT an empirical formula .3 )2 نقطة( C3HO2 O C12H22011 O…

A: Answer

Q: 3 A2B + 6 CD --> 6 AD + 3 C2B (OR 3 A2 B + 6 C D right arrow 6 A D + 3 C2 B) Calculate the number…

A:

Q: 1, A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: From percentage composition by calculating no. Of moles we can calculate empirical formula .

Q: The molar mass of nicotine C10H14NX is 162 g/mol. What is the value of x?

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Q: h for dellivery from the supplier? Assume that the atomic mass of Ca is 47.0 u.

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Q: n 22 A gasoline additive was found to be composed of 38.43% Pb, 17.83% C and 3.74% H. What is its…

A: Percentage of Pb = 38.43 %  Percentage of C = 17.83 %  Percentage of H = 3.74 %  Empirical formula =…

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: / Compound which is composed of 57.14% C, 6.16% H, 9.52% N, 27.18% O by mass and has a molar mass of…

A: Determination of empirical formula  The percentage composition of elements present in given compound…

Q: A sample of 0.600 mol of a metal M reacts completely withexcess fluorine to form 46.8 g of MF₂.(a)…

A: Given: Number of mole of the metal=0.600mol Mass of MF2 = 46.8g

Q: How many Chromium atoms are present in a 5.00 mole ?sample of Al2(Cr207)3 None of them x 1024 9.03 x…

A: We have given that 1 mole of Al2(Cr2O7)3 contain 6 mole of chromium  Avogadro's number is defined as…

Q: If the m. Wt. of BaSO4 = 233.42 g/mol and m. Wt. of Na(SO4)2= 140.02 g/mol and %3D wt of…

A: Given that M.W of BaSO4 = 233.42 g/mole  M.W of Na2SO4 = 140.02 g/mole  Weight of Na2SO4 = 1.5 g

Q: mol AB-016 A student was given a sample of hydrated Na2CrO4 (molar mass of anhydrous Na2CrO4. 162.0…

A: Number of moles of anhydrous sample and water is calculated as above,

Q: 7.) Which of the following is NOT TRUE about the compound C6H1206? a. 1 mole of C6H12O6 is equal to…

A: As per bartleyby guidelines i answered only first question so please don't. Thank you

Q: 4. An element “X* has five major isotopes, which are listed below along with their abundances. What…

A: We are having an element X having five isotope along with their abundance and mass . We have to…

Q: Explain the concept of molecular weight ?

A: Molecular weight can be described as a sum of atomic mass of all the atoms present in a molecule.…

Q: Element Molar Mass (/ 14.01 16.00 24.31 32.07 55.85 1. The molar mass of sulfur is 32.07 s/mol. This…

A:

Q: Calculate the molar mass for Hydrogen gas using the formula PV/RT where P=718.9 V= 36.0 R=0.821 T=…

A: Ideal Gas Equation is : PV = nRT where,  P = Pressure of the gas V = Volume of the gas R = Universal…

Q: The molar mass of an element is numerically equivalent to what? b. 1 mole a. 1 amu c. its atomic…

A: Molar mass is the sum of mass of all atoms and the unit of the molar mass is grams or g

Q: The presence of SO2 in the atmosphere causes acid rain. How many percent of sulfur present in SO2?…

A:

Q: w many moles of calcium atoms do you 1021

A: Given, No. of atoms = 6.22×1021 atms To calculate the number of moles of calcium.

Q: Suppose pairs of balloons are filled with 10.0 grams of the following pairs of gases. Which has more…

A: Given:10 g of  SO2 10 g of  F210 g of  Kr10 g of  CCl4We need to calculate the number of particles…

Q: molecular weight is the summation of Atomic numbers Atomics weight Number of molecules

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Q: What is the mass of exactly 1 mole of each of the compounds? N,O: Fe(CIO),: Fe(CIO, )3:

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Q: calcuya te 6011owing (a) ob molecues in 0•250 moles ob NH3 Num ber un

A: According to mole concept, 1 mole of any substance is equal to the Avogadro number (6.022 × 1022)…

Q: 27. The elemental analysis of a substance shows that it consists of 52.2% C, 34.7% 0, and 13.0% H by…

A: Since you have posted multiple questions, we are entitled to answer the first only. 27) Given:…

Q: Naturally occurring chlorine that is put in pools is 75.53 percent 35Cl (mass = 34.969 amu) and…

A: Given : There are total 2 naturally occurring isotopes of chlorine Mass of isotope 1 i.e 35Cl =…

Q: A 0.415 mol sample of MnX2O7 has mass of 85.14g identify X indicating the symbol and not the name of…

A:

Q: Which one of the following statements about the compound C3H4 is CORRECT? Oa. One mole of C3H4…

A:

Q: 3 A2B + 6 CD --> 6 AD + 3 C2B (OR 3 A2 B + 6 C D right arrow 6 A D + 3 C2 B) Calculate the number…

A: Given 3 A2B + 6 CD --> 6 AD + 3 C2BThe atomic weight of A is 15.0 grams/mol  The atomic weight of…

Q: The molar masses of the four natural isotopes of chromium are 50 g mol-1, 52 g mol -1 53 g mol -1…

A: Given: The molar mass of four isotopes of chromium is 50 g/mol, 52 g/mol, 53 g/mol, and 54 g/mol.…

Q: 16. A three (3.00) mole sample of K25 would have how many atoms of potassium? 3.61 x 1024 1.81 x…

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Q: Serotonin (μ=176 g/mol) transmits nerve impulses be-tween neurons. It contains 68.2 mass % C, 6.86…

A: The formula in which the actual number of atoms of each elements are written as the subscripts with…

Q: how many flouine atoms are in1.000 mol of SF4 (molar mass=108.06 g/mol)?

A: The number of atoms in one mol substance is known as Avogadro's number and that is equal to 6.02 ×…

Q: 0.42139 17. G 5 19g. mass of Unknown sulfate. macs Of Empty Crucible & cover 18.33449 mass of…

A: Answer: This question is based on mass percentage calculation of sulfate in the given sample.

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.