An element consists of 1.40% of an isotope with mass 203.973 u, 24.10% of an isotope with mass 205.9745 u, 22.10% of an isotope with mass 206.9759 u, and 52.40% of an isotope with mass 207.9766 u. Calculate the average atomic mass and identify the element.

Q: 7.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given carbon dioxide = 19.42 g water=3.97 g

Q: 7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: The overall reaction for the production for ammonium nitrate is N2+3H2+2O2->NH4NO3+H2O What mass…

A: 1.00 kg of H2 along with N2 and O2 that produces NH4NO3 and H2O.

Q: 3. In a chemical atomic mass determination, the tin content of 3.7692 g of SnCl, was found to be…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: The composition of a commercial cold remedy mixture is 87% aspirin, 7% caffeine, 6% vitamin C. What…

A: Mass of mixture that contains 5 g Caffeine = ? % of aspirin = 87 % % of caffeine = 7% % of vitamin C…

Q: A. Molar mass of an Element = Atomic mass of the Element Molar mass of a Compound = Molecular mass…

A: Given: Molar mass of C = 12.01 g/mol Molar mass of O = 16.00 g/mol Molar mass of Pt = 195.08 g/mol…

Q: If 4.1 g of Cr is heated with 9.3 g of Cl2 what mass CrCl3 will be produced?

A: Mass of Cr = 4.1 g Mass of Cl2 = 9.3 g The molar mass of Cr = 52 g/mol The molar mass of Cl2 =71…

Q: A rock is 5.0% by mass fayalite (Fe₂SiO₄), 7.0% by massforsterite (Mg₂SiO₄), and the remainder…

A:

Q: Consider a compound that produces 5.0 g Al and 19.7 g Cl a. What is the empirical formula of this…

A: Given that : Mass of Al = 5.0 g Mass of Cl = 19.7 g The molar mass of Al is 26.98 g/mol. The molar…

Q: 13 4 10 5.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and…

A: Here an organic compound of mass 5.5 gram containing carbon and hydrogen , perhaps containing…

Q: Barium reacts with water to produce barium hydroxide and hydrogen gas. When 5.489 g Ba is combined…

A: Given: Mass of Ba = 5.489 g Mass of H2O = 53.00 g Mass of Ba(OH)2 produced = 6.849 g Chemical…

Q: Determine the empirical formula of (a) the rodenticide (rat killer) warfarin, which consists of…

A: The given data contains, C = 74.01% H=5.23% O=20.76%

Q: 8.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: A sample of limestone (containing calcium carbonate,CaCO3)weighing 438mg is treated with oxalic acid…

A: Solution- following reaction is given below with problem solution-CaCO3 + H2C2O4 →CaC204 + H2O +…

Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

A:

Q: Phosphorus may be determined analytically by precipitating it as MgNH4PO4 followed by ignition to…

A: Given data: Mass of sample of phosphate rock = 9.346 gms It contains 71.24% of Ca3(PO4)2 So, mass of…

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A: Weight of Fe = 575 gm

Q: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given : Mass of compound combusted = 2.00 g Mass of CO2 produced = 3.30 g Mass of H2O produced =…

Q: A mixture was found to contain 1.50g NH4CI, 0.80 g NaCI, and 1.20 g SiO2. What is the percentage of…

A: Given: Mass of NH4Cl = 1.50 g Mass of NaCl = 0.80 g Mass of SiO2 = 1.20 g

Q: Iodine is made by the following reaction 2 NaIO3(aq) + 5 NaHSO3(aq) → 3 NaHSO4 (aq) + 2 Na2SO4 (aq)…

A: Given , Reaction : 2NaIO3(aq) +5 NaHSO3(aq) → 3NaHSO4(aq) + 2Na2SO4(aq) +H2O(I) +I2(aq)

Q: The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O: 4 NH3 (g) + 7 O2 (g)…

A: 4 molesNH4 NH3 +702 G4NO24 NO + 6H₂OMy gives a proles Nomole NH₃ gines Imole No.17 g NHg gives 46 gm…

Q: Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced…

A: Given information,        1.40 × 103 g N24.60 × 102 g H2

Q: Determine the empirical formula of the compound according to its elemental analysis: 38.13% C by…

A:

Q: . A sample of 1.000 g of a compound containing carbon and hydrogen reacts with oxygen at elevated…

A: Since we answer only 3 sub-parts, we'll answer the first three. Please resubmit the question by…

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: In an experiment, 2.7g of compound C yielded 1.48g of C6H5CH2OCH2C6H5. What is the percentage yield?…

A:

Q: Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,…

A: Fe2O3 + 2Al.....> 2Fe + Al2O3 Mass of Fe = 14.4 g Molar mass of Fe = 55.8  Moles of Fe =…

Q: 7.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Empirical formula is the formula which is written using minimum ratio of atoms present in the…

Q: The hydrated salt, MY3·xH2O, was heated strongly in a crucible to remove all the water molecules of…

A: Given: Mass of empty crucible and cover  = 29.73 g Mass of crucible, cover, and hydrated salt =…

Q: compound has the mass percent data given below . Determine its empirical formula. 32.43 % carbon by…

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

Q: Elixirs such as Alka-Seltzer use the reaction of sodium bicarbonate with citric acid in aqueous…

A: The balanced reaction taking place is given as 3 NaHCO3 (aq) + C6H8O7 (aq) -------> 3 CO2 (g) + 3…

Q: a certain protein has a molar mas of 2.88 x 10^5 g. what is the mass of the molecule of this protein

A: Given: Molar mass  of Protein = 2.88 x 105 g.  1 mole = 6.022 X 1023  molecules

Q: Molar mass is defined as: a. the mass of one mole of a substance in grams. b. the mass of one gram…

A: option a

Q: The formula of a compound present in butter has a molar mass of 88.11 g / mol. If the percentage…

A: Generally the molar mass of the compound is used to determine the molecular formula of compound.…

Q: mass

A:

Q: Fluorine is so reactive that it forms compounds with mate-rials inert to other treatments.(a) When…

A: Fluorine is the most electronegative and reactive element of the periodic table. It requires one…

Q: 05 A sample of limestone (containing calcium carbonate, CaCO3) weighing 438 mg is treated with…

A:

Q: 7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: 8.50 g of a certaln Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: Determine the empirical formula of the compound according to its elemental analysis:  38.13% C by…

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

Q: How many grams of oxygen does it contain? What is the percentage by mass of nitrogen in the…

A:

Q: Imagine you discover a substance in a forest mushroom and find through experimentation that it…

A:

Q: calculate the mass of calcium phosphate (in kilograms)

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: 7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: A rock is 6.5% by mass fayalite (Fe2SiO4), 14.2% by mass forsterite (Mg2SiO4), and the remainder…

A: In this question given: Fe2SiO4- Fayalite has 6.5% and 14.2% by mass forsterite, remaining is 79.3%…

Q: The molar mass of ibuprofen is 206.3 g mol-1 and a standard tablet contains 0.2 g ibuprofen.  What…

A: Given that : The molar mass of ibuprofen = 206.3 g/mol The mass of ibuprofen in a tablet = 0.2 g

Q: What is the maximum mass of ammonia that can be produced from a mixture of 1.40 x 10' g N, and 4.60…

A: Given data, According to the stoichiometry, One mole ( 28.014 g ) of nitrogen will react with three…

Q: How is the mass percent of elements in a compound different for 1.0 g sample versus a 100g sample…

A: Compounds comprising variety of elements are formed by combinations of these elements in certain…

Q: 7. Calculate the molar mass of each of the following compounds. a. Fe,O,, iron(III) oxide b. BCl,…

A: Molar mass is the sum of atomic masses of all atoms present in the given Molecule.    Percentage…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".