Suppose you mix 17.0 g of Na2SO4 and 7.10 g of C. What mass of Na2S is produced?

Q: How many grams of C are present in 4.19 grams of carbon tetrafluoride?   How many grams of carbon…

A: Given   (i)   Mass of CF4  = 4.19 gram       Mass of carbon = ? (ii)  Mass of F = 4.61 gram…

Q: A mixture is made up of 4 molecules of CH3CH2  CH2OH and 5 formula units of Pb3(PO4)4 * 6H2O. Why…

A: A molecule is composed of two or more elements that are covalently bonded.It is the smallest…

Q: a. How many moles of disulfur decafluoride, S₂F10, are present in 2.98 grams of this compound? moles…

A:

Q: For 1.88 g of a compound containing only copper and oxygen, CuxOy, a student found that it contained…

A: Mass of copper in the sample is 1.371 g. Molar mass of copper is 63.546 g/mol.

Q: A250 mg sample of a compound containing carbon hydrogen, and oxygen underwent combustion producing…

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

Q: A Sample of pure Calcium fiuoride With a mass of 15.0g Contains 1.709 of calcium. How much calcium…

A: This question can be solved using proportion method as:

Q: How many grams of silicon are present in 2.78 moles of silicon dioxide?

A: Recall the data, moles of SiO2=2.78 moles mass of Si=?

Q: A 94.8 g sample of Fe;O4 reacts with 17.39 g of CO to form FeO and CO2. FegOals) + COlg)-- 3FEO(s) +…

A: Given chemical reaction :  Fe3O4 + CO ---> FeO + CO2

Q: How many grams of carbon tetrabromide contain 2.48 grams of Br ?

A: grams of carbon tetrabromide contain 2.48 grams of Br  will be found like this:

Q: a. How many moles of sulfur hexafluoride, SF6, are present in 1.87 grams of this compound? moles b.…

A: • Thus, 0.0128 moles of sulfur hexafluoride are present in 1.87 grams of this compound in correct…

Q: Consider that the combustion of an unknown amount of a hydrocarbon produces 0.2 moles of H2O.…

A: Given , 0.2 moles of H2O was formed

Q: A tube of toothpaste contains 0.76 g of sodium monofluorophosphate (Na2PO3F) in 100 mL.(a) What mass…

A:

Q: What mass of H2SO4 is produced from 6.58 g of SO3 and 1.64 g of H2O?

A: Given that there are 6.58 g of SO3 and 1.64 g of H2O to produce H2SO4

Q: atoms

A:

Q: For the following reaction: NaN3=Na+N2 if 45.0 g of NaN3 decomposed, how many grams of sodium, and…

A: The given balanced reaction is as follows, The given grams of NaN3 is converted into moles first.

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

A:

Q: Consider a sample of calcium carbonate in the form of a cubemeasuring 2.005 in. on each edge. If the…

A: Given: Edge length of the cube(Calcium carbonate) =2.005 inch Density of sample= 2.71 g/cm3 To…

Q: If you begin with 19.76 grams of Al(s) and 15.14 grams of O2(g) , how many grams of Al2O3(s) can be…

A:

Q: A sample of C3H8C3H8 has 8.88×1024 H8.88×1024 H atoms. (1) How many carbon atoms does the sample…

A: We have given the sample that contain 8.88×1024 H atoms.   1 Mole of  C3H8≡  3 Mole of Carbon   and…

Q: An experiment requires that enough XeOF4 be used to yield 19.2 g of fluorine. How much XeOF4 must…

A:

Q: (c) 54.5% C, 9.2% H, and 36.3% O by mass

A: given :-  percentage composition of C = 54.5%  percentage composition of H = 9.2%  percentage…

Q: A 2.558 g sample of sodium carbonate hydrate was heated to drive off the water resulting in 0.948 g…

A: 2.558 g of sodium carbonate gives 0.948 g of anhydrous sodium carbonate. mass of water hydrate in…

Q: How much would 2.4 x 1024 molecules of N2O5 weigh?

A: Moles=2.4*10^24/(6.022*10^23) = 4

Q: For a sample of Carbon that contains 2.41 x 1022 atoms, calculate: • number of moles of carbon in…

A: Introduction: Mole is the amount of substance that contains 6.022×1023 respective particles of that…

Q: For 2.526 g of a compound containing only copper and oxygen, CuxOy, a student found that it…

A: From the mass of compound and mass of Cu ,we can determine the mass of oxygen. Then using molar mass…

Q: A 15-g sample of lithium is reacted with 15 g of fluorine to form lithium fluoride: 2Li + F2 →…

A: First convert mass into mole by diving molar mass respectively Then Calculate limiting reagent by…

Q: Consider Cl2+F2=CLF3 (ΔH°f = -164.65 kJ/mol) . 1. If 42 g of F2 is combined with 142 g of Cl2, how…

A: Balanced chemical equation: Cl2  +   3F2  ------>   2ClF3 Number of moles = Mass/molar mass

Q: Determine the number of atoms of C in 15.0 grams of C₆H₁₂O₆.

A: Given, mass of C₆H₁₂O₆ = 15.0 g Number of atoms of C in 15.0 grams of C₆H₁₂O₆ = ? Note: molar mass…

Q: A 85.6 g sample of Fe304 reacts with 18.2 g of CO to form FeO and CO2. FezO4(s) + CO(g) 3FEO(s) +…

A:

Q: A compound of hydrogen and carbon is 92.3% carbon, If 40 g of hydrogen is reacted with 135 g of…

A: Molecular mass is the sum of the masses of all the atoms in a given molecule. Percentage composition…

Q: A Freon leak in the air-conditioning system of a large building releases 12 kg of CHF2Cl per month.…

A: The ratio of the given mass to the molar mass is called as moles. Mathematically, Given, Mass of…

Q: 1. How many grams of C are present in 3.05 grams of carbon tetrabromide ? grams C.

A:

Q: 9. Using the following reaction 2NaBr +CaF, →2NAF+ CaBr2 If 6 moles of CaF2 were added, what mass of…

A: Given  moles of CaF2 = 6 moles Molar mass of  CaBr2 = 199.9 gm/mole Mass of CaBr2= ?

Q: A chemical reaction was used to produce 1.61 moles of copper (II) bicarbonate, Cu(HCO3)2. What mass…

A: Given data:

Q: 1. Given the following reaction: NazS203 + AGB → NaBr + Na3[Ag(S2O3)2] a. How many moles of Na2S203…

A: according to mole concept we easily finds the moles of reactent and products

Q: How many kilograms of AICI3 can be made from 150 kg of chlorine

A: The balance chemical equation for reaction of Al with with Cl2 gas is as follow…

Q: 2. How much (mass) carbon dioxide will be produced from the combustion of 40 grams of methane?. 3.…

A:

Q: 2. Law of Definite Proportion. When 60.0 g of carbon is burned in 160.0 g of oxygen, 220.0 g of…

A:

Q: 83. Many famous “rubies” are in fact spinels, which look like rubies but are far less valuable.…

A: Few questions based on mole concept, which are to be accomplished.

Q: A sample of a compound containing only magnesium and oxygen is found to have 194g Mg and 256 g of O…

A: The percentage of Magnesium and oxygen are calculated as,

Q: 4. How many grams would 2.5 moles of magnesium (Mg) weigh? 5. How many grams would 10.0 moles of…

A: 4) Given : Moles of Mg = 2.5 mol Since atomic mass of Mg = 24.3 g/mol Hence mass of Mg = moles X…

Q: A sample of C3H8 has 8.00×10^24 H atoms. How many carbon atoms does the sample contain?  What is…

A: Given :- number of H atoms = 8.00 × 1024 atoms  To be calculated :-  No. of C atoms in sample…

Q: A mixture of 50.0 g of S and 1.00x10^2 g of Cl2 reacts completely to form S2Cl2 and SCl2. What mass…

A: When S react with Cl2, it will form S2Cl2 and SCl2 so first write reactant and product then balanced…

Q: b Suppose you mix 19.0 g of Na2SO4 and 6.30 g of C. What mass of Na2S is produced? Mass = g Na, S…

A: Limiting reagents:

Q: How many grams of BrBr are in 305 g CaBr2? mass:

A:

Q: 4. Cane sugar (C12H22011) is a white, odorless, crystalline powder with a sweet taste. What is the…

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If…

Q: What mass of iron(III) oxide must be used to produce 64.28 g of iron? What is the maximum mass of…

A: The equation required to produce iron from iron(III)oxide is as follows, Given grams of iron is…

Q: Q3: A: What mass of AgNO, is needed to convert 3.46g of NazCO: to Ag:COs, and calculate the mass of…

A: Interpretation -  To determine the mass of AgNO3 is needed to convert 3.46g of Na2CO3 to Ag2CO3 and…

Q: B. How many grams of Al2(SO4)3 would contain 1.236 × 1020 atoms of sulfur? Mass of Al2(SO4)3 = grams

A:

Q: How many grams of C are present in 1.66 grams of carbon tetrachloride?  how many grams of carbon…

A: To calculate the mass of constituents present in a compound, we must have the molar mass of…

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.