hydrated salt MSO3⋅4H2O, the mass percentage of H2O is 44.71%. Identify the element M in the salt? (5 marks) (b) A certain element has two naturally occurring isotopes. (5 marks) The mass of one of the isotopes is 120.904 amu and its natural abundance is 57.21%. The mass of the second isotope is 122.904 amu. Calculate the average atomic mass Write the chemical symbols of the isotopes

Q: What is the mass in kilograms of 5.6 x 1027 molecules of carbon tetraiodide?

A: Number of moles of a compound is equal to the ratio of the given mass of the compound to the molar…

Q: What is the mass of 3.01 x 1023 atoms of FeO? Round to two decimal places.

A: a) Given  mass of AgNO3 = 5,398 grams  molar mass of AgNO3 = 169.87 g/mol Conversion factor - 1 mol…

Q: Give the number of atoms of the specified element in a formula unit of each of the following…

A: a) The given compound is C6H5COONH4 The number of a hydrogen atom is 9 The molecular mass of the…

Q: (a) In the certain hydrated salt MSO3-4H20, the mass percentage of H2O is 44.71%. Identify the…

A:

Q: A certain metal, M, forms two oxides, M2O and MO. If the percent by mass of M in M2O is 73.4%, what…

A: The answer is given below

Q: Which of the following represents a chemical property of hydrogen gas? O It reacts explosively with…

A: To identify: The chemical property of hydrogen gas.

Q: How many grams of CH3CO2C5H11 must be weighed out to provide 3.22 x 1023 atoms of H? When you input…

A: Mole in terms of particles : 1 mol = 6.022 x1023 particles  where particles =…

Q: Ca2+ in Cao,

A: In Li2O there is Li+ and O2- is present hence each oxygen atom is valance by 2Li+ ions... Hence in…

Q: Write a balanced chemical equation for the reac- tion of bromine and triolein, a triglyceride of…

A:

Q: If you have 13.02 x1023 atoms of nitrogen, what would you expect its mass to be?

A: Given, Number of Nitrogen atoms = 13.02 X 1023

Q: 3.00 x 1023 atoms

A: Mass of Ca = 20.0 g Molar mass(MM) of Ca = 40.08 g Moles of Ca = Mass/MM     = 20.0/40.08   = 0.500…

Q: Explain the difference between the terms molecularmass and formula mass. To what type of…

A: The difference between molecular mass and formula mass has to be explained and the type of compound…

Q: (a) In the certain hydrated salt MSO3-4H20, the mass percentage of H20 is 44.71%. Identify the…

A:

Q: 2. Given the incomplete equation: 2 C +3Н, х Which compound is represented by X?

A: Two moles of carbon  Three moles of hydrogen  Compound formed = ?

Q: What percentage of the mass of a phosphorus 32 atom is contributed by its electrons, given the mass…

A: Phosphorus-32 has 15 electrons. Mass of electrons in Phosphorus-32 can be calculated as follows,…

Q: 2. In a chemical atomic mass determination, the tin content of 3.7692 g of SnCl4 was found to be…

A: In SnCl4 one Sn atom combine with 4 chlorine atom. Given mass of SnCl4 is 3.7692 g and mass of Sn is…

Q: 3.123 In the formation of carbon monoxide, CO, it is foundthat 2.445 g of carbon combine with 3.257…

A:

Q: a) Calculate the molar ratio of carbon / hydrogen in the fuel and use the result to prove that the…

A: (A) -- When methane (natural gas) is burnt  CH4+2O2  →  CO2 +  2H2O16 gm              44 gm    36 gm…

Q: 5 g of anhydrous strontium nitrate is added to a beaker and exposed to air. After several hours the…

A: Given that -  Mass of strontium nitrate =  5 g  Mass of water Increases due to exposed in air = 1.70…

Q: (a) In the certain hydrated salt MSO34H2O, the mass percentage of H2O is 44.71%. Identify the…

A: The question is based on the concept of  Stoichiometry. we have been given a hydrate salt. we know…

Q: What is the mass % of H in C9H10N2?

A: Mass percentage is a kind of expressing the concentration of a solution. It gives an information…

Q: What is the mass of 6.02 x 1023 atoms of carbon, C?

A: Concept is based on mole concept

Q: What mass of ethanol (C2H6O) would contain 7.0 x 1026 atoms of carbon?

A:

Q: Given the following mixture of two compounds 35.00 mL of X (MW =70.00 g/mol)(density 1.156 g/mL) and…

A: Given : volume of X = 35 mL and density of X = 1.156 g/mol Hence mass of X = density * volume =…

Q: What is the mass in kilograms (kg) of 4.29 X 1024 atoms of palladium?

A:

Q: What is the mass of 6.02 x 1023 Cu atoms?

A:

Q: 2.48g of hydrated copper(ii)chloride (CuCl2.xH2O) were heated to constant mass. 1.96g of anhydrous…

A:

Q: A. What is the mass in grams of 1.11 x 10^24 atoms of zinc? B.How many zinc atoms are there in 28.5…

A: We’ll calculate the mass of Zn and the number of atoms present in Zn by applying simple mole concept…

Q: With the advent of techniques such as scanning tunneling microscopy, it is now possible to “write”…

A: Given:Surface is 20 atoms high and 14 atoms wide.Number of Platinum atoms = 20 atoms × 14 atoms =…

Q: What is the mass, in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Molar mass of C = 12.01 g/mol mass(C)= 1.076 g number of mol of C, n = mass of C/molar mass of C…

Q: 3. What is the mass of 2.51 x 1024 atoms (particles) of lead metal?

A: Molar mass of lead is 207.2 g/mol. Given number of atoms are 2.54×1024

Q: Given that 4NH3 + 5024NO+ 6H2O, if1.92 X 10 molecules NH were made to react with an excess of oxygen…

A: Given,  4NH3 + 5O2 ➝ 4NO + 6H2O Number of molecules of NH3 react = 1.92 × 1021 molecules Excess…

Q: Give the number of atoms of the specified element in aformula unit of each of the following…

A:

Q: What is the % mass of oxygen in citric acid, C6H807?

A:

Q: What is the mass of Cu(C2H3O2)2 ✕ H2O?

A: Molar mass of Cu(C2H3O2)2 .✕H2O = (63.5 x 1) + (12 x 4 + 1 x 6 + 16 x 4) + (18 x X) = 63.5 + 120 +…

Q: 7. What is the mass in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Given mass of Carbon = 1.076 g Molar mass of Carbon = 12.01 g/mol Molar mass of C6H8O6 = 176.12…

Q: Stibnite, Sb2S3, is a dark gray mineral from which antimony metal is obtained. What is the mass…

A:

Q: 4. . Which is NOT TRUE about the Law of Conservation of mass? O The number of atoms before and after…

A:

Q: . What is the mass (grams) of 2500. carbon atoms?  2.  What is the mass (grams) of 6.52 x 1018…

A:

Q: What is the molecular weight of sugar, C6H12O6 in atomic mass units? And If you had one mole of…

A:

Q: 14. The fertilizer ammonium sulfate [(NH,),So,] is prepared by the reaction between ammonia (NH3)…

A:

Q: The nature of the elemental matter depends on which factor in the atom and what factors are added to…

A: Valence electrons are the electrons present in the outermost shell.

Q: Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of…

A: Isotopes are elements with the same number of protons but differ in the number of neutrons. The…

Q: Boron trifluoride is used as a catalyst in the synthesis of or-ganic compounds. When this compound…

A: When the compound involves boron-11 and fluorine-19 isotope, the molecular mass of the compound is;…

Q: Suppose that a student dehydrates strontium chloride hydrate and reports the formula as SrCl2 •…

A: According to the question, a student dehydrates strontium chloride hydrate and reports the formula…

Q: The alkali metals react with water to give hydrogen gas and a metal hydroxide, MOH, where "M" is the…

A: Alkali metals are group 1A elements.

Q: What would be the mass, in kilograms, of a block of graphite consisting of 1.55 x 1026 carbon atoms?

A:

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".