Analysis of a compound containing only C and Br indicates that it contains 7.0% by mass of carbon and has a molar mass of 515.5 g/mol. What is the molecular formula of this compound? O Empirical: CBr2: Molecular: CBR2 O Empirical: CBr6s: Molecular: C2Br13 Empirical: CBr2: Molecular: C3Bro O Empirical: CBr3; Molecular: C3B19 O Empirical: CBr3: Molecular: C4Br12

Q: What is the mass in grams(a,b)/ name the ionic compound (c,d)/ name the ionic compound containing a…

A:

Q: 1.    Determine the mass percent of each element in the following compound: Na3C10H18O5

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

Q: What is the empirical formula of a compound composed of 3.25% hydrogen (HH), 19.36% carbon (CC), and…

A: Empirical formula of a compound is the  simplest whole number ratio of the  atoms present in the…

Q: A compound is analyzed and found to contain 12.1% carbon, 16.2% oxygen, and 71.7% chlorine (by…

A: Assuming 100 g of the compoun. Given : % of C = 12.1 %  % of O = 16.2 %  % of Cl = 71.7 %

Q: A compound was found to contain 115.49g of Ca, 92.16 g of O, and 5.82 g of H. What is the total mass…

A: mass of Ca = 115.49g mass of O = 92.16 g mass of H =  5.82 g  Molar mass of Ca = 40.078 g/molMolar…

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: The emperical formula can be calculated as follows

Q: Be sure to answer all parts. For many years chloroform (CHCI3) was used as an inhalation anesthetic…

A: Here we are required to calculate the percent composition by mass of compound chloroform CHCl3

Q: A compound contains 24.3% C, 4.1% H, and 71.6% Cl by mass, and has a molar mass of 99 g/mol. What is…

A:

Q: The reaction between solid whit phosphorus and oxygen produces solid tetraphosphorusdecoxide…

A: Given data, Mass of P4 = 25.0g Mass of O2 = 50.0g Moles of a substance is defined as the ratio of…

Q: One of the key ingredients in certain cosmetics is Pb2Cl2CO3 and is created as shown in the reaction…

A: Given mass of CO2= 4.87 g  Given mass of H2O = 2.7 g  Given mass of NaCl = 0.46 g  Given mass of PbO…

Q: Determine the molecular formula for the compound with empirical formula P2O5 and molar mass of 284…

A: Empirical Formula It tells about the relative composition of elements in a molecule. Formula gives…

Q: For the reaction of sodium sulfide with iron(III) chloride below , you have 319.5 kg of sodium…

A: The number of moles of sodium sulfide and iron (III) chloride is 4094 mol and 3097 mol respectively.…

Q: A 10.68 g sample of compound that contains only carbon, hydrogen, and oxygen was analyzed through…

A:

Q: Combustion analysis of an unknown compound containing only carbon and hydrogen produced 0.2845 g of…

A:

Q: How many moles of phosphate ions are present in a sample that contains 2.13 moles of iron(II)…

A:

Q: 6. Calculate the mass of 4.50 moles of CazPO4 . O 968 g O 215 g O 0.0209 g O 87.1 g 7. The molecular…

A:

Q: 1. Complete the blanks in each row, with proper number of significant figures : Substance Molar…

A:

Q: The borax powder has the formula Na2B4O7.X H2O when 2.10 g of hydrate is heated in a crucible until…

A: given data is  amount of sample taken is 2.10g residue left is 1.10g M.Wt of Na2B4O7  is 201.0g

Q: Lindane is one of the chlorinated pesticides the use of which is now restricted in the United…

A: The percentage composition of various elements are: 24.78% => carbon 2.08% => hydrogen 73.14%…

Q: The empirical formula of my newly synthesized compound  is  C5H8O2. The molar mass was determined by…

A: It is given that, The empirical formula of compound  is  C5H8O2 Molar mass = 300 g/mol So, we can…

Q: A mystery white powder is made up of 27% C, 9% H, and 64% F.  What is its empirical formula?

A: Given measurements, %C = 27 %, molar mass of C =12 g mol-1 %H=9% , molar mass=1.008 g mol-1 %F=64 %…

Q: The empirical formulae and molar masses of three compounds, A, B and C, are shown in Table 3.7.…

A: Empirical formula :-  The chemical formula which shows only the relative number of atoms of…

Q: The molecular formula for paracetamol is C3H9NO2. How many moles of C atoms are present in a 10.0 g…

A:

Q: What is the mass of each compound, h kilograms? a. 34.8 mol of sodium metasilicate, Na2Si03(s) b.…

A: The solution is given below -

Q: 2. What is the percent by mass of each element in the following compounds? Compound % By Mass(for…

A:

Q: Nicotine, a poisonous compound found in tobacco leaves, is 74.0 % C, 8.65 % H, and 17.35% N. Its…

A: Given: Percentage of C in nicotine = 74.0 % Percentage of H in nicotine = 8.65 % Percentage of N in…

Q: A 10.68 g sample of compound that contains only carbon, hydrogen, and oxygen was analyzed through…

A: Given mass of sample is 10.68 g. Upon combustion it gives 16.01 g CO2 and 4.37 g H2O

Q: Using the following eq CH3NH2 (g)+ O2 (g)→ CO2 (g)+ H2O(g)+ N2 (g) 4.0 x 104 mol CH3NH2 contains…

A: All calculations  explained  in Handwritten solution

Q: Chemistry a student was given a sample of CaCO3 * XH2O to find the empirical formula. she measured…

A: CaCO3 .xH2O  upon heating  will lose its water and this a given sample will lose some of its mass…

Q: The mass, in grams, of 1.5 x 10-2 mol of CdS. The number of moles of hydrogen in 86.6 grams of…

A:

Q: A 4.73 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A:

Q: For each of the following gemstones, determine the mass of compound present in the given moles of…

A: Given  1) Formula = Be3Al2(SiO3)6     Number of mole = 0.0170 mole        mass    = ? 2) Formula   =…

Q: A compound has an empirical formula of CH3O and a molecular weight of 124 g, what is its molecular…

A: Empirical formula can be defined as the simplest whole number ratio of various atoms or elements…

Q: A) Convert the following to Moles   (1) 2.03X1022 atoms of lithium, Li (2) 1.75 X1025 Formula Units…

A:

Q: What is the molecular formula of each compound? (a) Empirical formula CH₂ (μ=42.08 g/mol) (b)…

A: a) Empirical formula = CH2 The Molecular formula can be calculated by the following formula,…

Q: Which contains the greatest number of hydrogen atoms? O 0.080 moles of sucrose, Ci2H22011 O 0.250…

A:

Q: A gaseous compound containing carbon and hydrogen was analyzed and found to consist of 83.65% carbon…

A: Suppose Total mass   = 100 gram  Mass of Carbon         = 83.65 gram Mass of Hydrogen     =…

Q: What is the molecular formula of a compound if its molar mass is 183.2 g/mol and its empirical…

A:

Q: What is the molecular formula of each compound?(a) Empirical formula CH (μ=78.11 g/mol)(b)…

A: a) Empirical formula = CH     Given mass = 78.11g/mol     Empirical formula mass = 12 + 1=13g/mol…

Q: What is the empirical formula of an compound containing 81.8% C; 18.2% H.   C H Mass of element (in…

A: The question is based on the concept of elemental analysis. based on the data provided, we have to…

Q: 3. An oxide of chromium is made up of 5.20g chromium and 5.60 g oxygen. What is the empirical…

A: Given,  Mass of Cr = 5.20 g  Mass of O = 5.60 g What is the empirical formula of the oxide = ?

Q: What amount (moles) is represented by each of these samples? a. 20.8 mg caffeine, C3H10 N4O2 Amount…

A:

Q: 3) An organic compound contains only C, H, and O. Complete combustion of a 3.185 g sample in an…

A:

Q: Compound Z is a chemical naturally found in peppermint and other mint plants and has mild anesthetic…

A:

Q: 4. Salicylic acid is an organic compound composed of 61 % C, 7% H, and the rest is oxygen. If 0.218…

A: Given, In salicylic acid; Percent composition of C=61% Percent composition of H=7% Percent…

Q: 1. Complete the blanks in each row, with proper number of significant figures: Substance Molar mass,…

A: Complete the each row

Q: How many moles of atoms are in each elemental sample? 1) Express your answer using two significant…

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

Q: An unknown compound is comprised of 25.9% N and 74.1% O. The molecular mass of the compound is 216…

A: % of N = 25.9 % of O = 74.1

Q: How many atoms are present in 123 g of magnesium cyanide? a. 9.7 x 1023 b. 2.91x 1024 c. 2.83 x 1028…

A: Formula of magnesium cyanide is Mg(CN)2

Q: Determine the empirical and molecular formula of the following compounds: Sodium nitrite with a…

A: Given data Sodium nitrite molecular weight = 69 gmNa= 33.32%   molecular weight = 22.98…

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.