7. (NH)2Cr2O7 Element # atoms Atomic mass (g/mol) Total (g/mol) H. Cr Total Molar mass La Display Settings T'Focus

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

A: Mass of 0.37 mole of metal oxide = 55.4 g. Mass of one mole of metal oxide = Molar mass of the metal…

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

A:

Q: A tube of Thothpaste contains 0.76 g of sodium monofluorphosphate (Na2PO3F) in 100 mL. a)what mass…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: The density of Bi at 25 °C is 9.808 g>cm3. How many Bi atoms are present in a cube of the element…

A:

Q: 1no What is the maximum mass of Al,(SO,), which could be formed from the reaction of 3.6×1023 atoms…

A: According to the mole concept, 1 mole of an element contains 6.022 × 1023 number of atoms.…

Q: A compound is 43.7 % P, and 56.3 % O by mass, and has a molar mass of 283.88 g/mol. What is the…

A: Element % composition Atomic Mass Relative no of atom=% compositionatomic mass Simplest atomic ratio…

Q: 3.135 A certain metal M forms a bromide containing 53.79percent Br by mass. What is the chemical…

A: Let the mass of the compound be 100 g. Then the mass of the Br is 53.79. Calculate the mass of the…

Q: wnat is the empiracle formula og Compound that is 62.07. C, 10.47 and 27.5%. 0 by mass ?

A: C = 62.0 % H = 10.4 %  O = 27.5 %

Q: A compound has the empirical formula C6H7N and a formula mass of 186.24 g/mol. What is the molecular…

A: Answer: Option d. C12H14N2 is the correct molecular formula. Given,The empirical formula=C6H7N…

Q: Use ammonia (NH3) to explain what is meant by thepercent composition by mass of a compound.

A: Ammonia was used to show, what is meant by percent composition by mass of a compound has to be…

Q: MgSO4•7H2O what is themolar mass g/mol?

A: We can calculate the molar mass of MgSO4•7H2O by adding the mass of all atoms which are present in…

Q: 1. An organic compound with a molar mass of 183.18 g/mol has the following mass percents ol each…

A: An organic compound is having molar mass = 183.18 g/mol Portion of Carbon = 39.34 %  of 183.18 = 72…

Q: Given 100 g-mol of molybdotellurate: 3(NH4)2O.2TeO3.6MoO3.10H2O, calculate: a) kg molybdotellurate…

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

Q: How many particlcs arc there in 1.43 grams of a molccular compound with a molar mass of 233 g/mol?

A: Given data contains, Mass of molecular compound is 1.43 grams. Molar mass of the compound is 233…

Q: 9.) How many moles of glucose, C6H1206 are in: (a). 538grams (b.) 1.00 grams of this substance?

A: The molar mass of a compound is furnished as the mass occupied by one mole. Hence the ratio of the…

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

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

Q: There are  ______mol of carbon atoms in 5.00 mol of dimethylsulfoxide (C2H6SO)

A: Given CompoundDimethylsulfoxide (C2H6SO)Moles of (C2H6SO) = 5.00 molmol of carbon atom = To be…

Q: 1) How many atoms does each molecule of H,SO, has? A) 8 B) 6 C) 7 2) A compound of carbon and…

A: we have to tell which option is correct from given choices of options by telling  number of atoms in…

Q: How many grams of diazine (N2H2) are there in 2.01 mol of the compound? ______________________ g

A: The molar mass of diazine is:

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: 7. How many molecules are in 8550 g of SO2? How many O atoms?

A: As the given problems contains more than one question and are not the sub-parts, so , here i give…

Q: Given 100 g-mol of molybdotellurate: 3(NH4)2O.2TeO3.6MoO3.10H2O, calculate: a) kg H b) lb Te c)…

A: We can calculate the molecular mass of the given compound by adding the mass of the atomic number…

Q: 3.155 Isoflurane, shown here, is a common inhalationanesthetic. Write its molecular formula, and…

A: The given compound is,

Q: When iridium-192 is used to treat cancer, a small cylindrical piece of 192Ir, a 0.6 mm in diameter…

A: Given,

Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

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

A:

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

A:

Q: A chloride of silicon contains 79.1 mass % Cl. (a) What is theempirical formula of the chloride? (b)…

A: Empirical formula It gives the simplest whole number ratio of elements present in a compound. It is…

Q: Just 68 a and b. Number 84

A: Since there are multiple questions, we will answer only one, that is, number 84 as question 68 is…

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: m ni un f. a 65.2 g sample of à compoulnu 11. A substance whose formula is A20 (A is a mystery…

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

Q: Paris green is a highly toxic emerald green compound with the formula Cu(C2H3O2)2. 3Cu(AsO2)2. What…

A: GivenThe formula of the Paris green

Q: What is the percent by mass of Cl in the compound? d 0 of 2 points earned 2 attempts remaining What…

A:

Q: Gold (Au) has been used to make ornamental objects and jewelry for thousande sf years. Gold nuggets…

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given: Mass…

Q: 3.1. How many moles and how many molecules are there in 750g of a) H2 b) H2O c) H2SO4? How many…

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

Q: A new organic material is to be examined by combustion analysis. Burning 0.09303 g of this sample in…

A: The sample contains the percentage of, C = 40.63 % H = 5.08 % O = 54•28%

Q: 6. If a vitamin contains 63 atoms of carbon, 90 atoms of hydrogen, 14 atoms oxygen, 14 atoms of…

A: The molecular formula of any compound is a way to express the number and the type of atoms that are…

Q: bone Titanium metal is usefuu as a heplacement matenial. Delemine the mass in grams o625.5 moles 06…

A: The moles of a compound can be calculated as follows: Moles of compound=Mass of compoundMolar mass…

Q: 6. A compound containing sium and 1.527 g of nitrc

A: Empirical formula represents the simplest reduced whole number ratio of atoms of all the elements…

Q: 1 CH; H CH3 Molecular formula: H,C-C-C-Ċ-CH, Empirical Formula:

A:

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: 5. If 10.0 gram of aluminum chloride are decomposed, how many molecules of Cl, are produced? AICI, →…

A: Molecule of chlorine are calculated by using  mole ratio of aluminium chloride nd chlorine

Q: 11. How many hydrogen atoms are in 65.2 grams of Ca(C,H,O2)2?

A: Given: The mass of Ca(C2H3O2)2., (m)=65.2 g The molar mass of Ca(C2H3O2)2, (M) =  158.1660 g/mol.

Q: for a reacuol UCSCIUCS ule sioleniômetry of t Problems 19. Using the average atomic masses given…

A: Number of moles of a substance is given by the ratio of the mass of the substances to that of the…

Q: a) How many moles of Ar are present in 4.4 g of Ar? b) How many atoms are present in 4.4 g of Ar?

A:

Q: Narceine is a narcotic in opium that crystallizes from solu-tion as a hydrate that contains 10.8…

A: The value of x in narceine.xH2O is to be determined.

Q: 6. Calculate the following quantities in 0.185 mole of C,H1¼O. a. moles of C b. moles of 0 c. atoms…

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

Q: I mole of HOCH,CH,OH/H 1.0, 1. LIAIH, H* D. H,0 2. Zn/H 2. H,0-

A: