26. a. Calculate the the molecular weight of Na2SO4 Atom Number of atoms Atomic Mass Total mass Molar Mass b. If a student measured a 426.12 g of Na2SO4, how many moles are there in the sample?

Q: 1. In the reaction Mg + N2 → Mg3N2 a. What is the mole ratio of the reacting species (reactants)…

A: The answer to the following question is given as:

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: 22. Be able to solve one-step and multi-step problems involving moles, mass, and a balanced chemical…

A: Answer: 399.26 g of NaBr is formed.

Q: Chloral hydrate (C2H3Cl3O2) is a drug formerly used as a sedative and hypnotic. It is the compound…

A: Hi, since you have posted multiple subpart question, we will answer the first three subparts. Kindly…

Q: Calculate the molar mass of Al2 O3. Molar mass = = g/mol Calculate the molar mass of Al(NO3)3. Molar…

A: given :-  molecular formula :  Al2O3  Al(NO3)3  To be calculated :-  molar mass of given compounds

Q: Sodium chloride, NaCl, forms by the following reaction between sodium and   a. How many moles of…

A: Given data:  mol of Cl2 = 3.4 Molar mass of NaCl = 58.44 g/mol

Q: Determine the number of CH;Clz molecules in 25.0 g CH;Clz. a) 0.294 molecules c) 1.28 x 1027…

A: Number of moles of CH2Cl2  is equal to the mass of CH2Cl2 divided by its molar mass.

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: 17. How many moles are present in 0.0195 g of the amino acid glycine, CH2(NH2)CO;H? A. 2.6 x 10“ mol…

A: Weight of amino acid glycine = 0.0195 g Molecular Mass of amino acid glycine = 75.07 g/mol

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: A compound was found by elemental analysis to contain 39.96 % carbon, 13.42 % hydrogen, and 46.62 %…

A: Molecular formula is the formula of the molecule in which all the atoms are represented with number…

Q: Determine the moles of NH4NO3 in the sample. The molecular weight of NH4NO3is 80.0 g/mol.…

A: Moles = given mass / molecular mass

Q: 16. A metal has the mass of 12.00 g and 5.850 x 1022 atoms. Calculate molar mass of the metal. O…

A:

Q: A researcher analyzed an unknown solid, extracted from the bark of spruce trees, to determine its…

A: a.  Mass of sample = 11.32 mg  = 0.01132 g       Mass of CO2       = 24.87 mg   = 0.02487 g…

Q: How many grams of NH3 would be produced by the reaction of 12.0 g of H2?          N2(g)      +…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: a. Calculate the molar mass of Al2O3. Molar mass = g/mol b. Calculate the molar mass of Al(NOS)3.…

A: a) Molar mass of Al2O3 = ?  b) Molar mass of Al(NO3)3 = ?

Q: . How many moles of Al(C 2 H 3 O 2 ) 3 contain 19mol O ? 6. Determine the % composition by mass of…

A:

Q: Which of the following is true about finding the molar mass of potassium sulfate, K₂SO4? A. The…

A: The molar mass of a compound can be calculated by adding the standard atomic masses (in g/mol) of…

Q: explain why the number of atoms and moles are different when the volumes are nearly identical?

A: 1. The table contains the data required to solve this problem.

Q: a. A piece of iron metal with a mass of 42.5g is burned in the presence of oxygen. The resulting…

A:

Q: Mass of NH4NO3 (s) + H2O (l) = 1.9871 Determine the moles of NH4NO3 in the sample. The molecular…

A:

Q: Calculate the mass of sodium chlorate that must decompose to form 6.5 g of oxygen. 2NaClO 3(s) →…

A: Consider the given information is as follows; Reaction:      2 NaClO3(s)   → 2 NaCl(s)   +     3…

Q: Potassium chloride is used as a substitute for sodium chloride for individuals with high blood…

A: The reactant that is completely consumed in a chemical reaction is called a limiting reactant.  The…

Q: 22. The combustion of hexane (C,H14), a component of gasoline, is represented by the balanced…

A: A combustion reaction of hexane. Balanced chemical Reaction :-  2C6H12 (l) + 19O2 (g) --> 12CO2…

Q: 5. Chloral hydrate (C2H3C1302) is a drug formerly used as a sedative and hypnotic. It is a compound…

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

Q: What mass of compound is present in 5.80 moles of each of the following compounds? H. ON a. Mass b.…

A:

Q: a. Calculate the molar mass of P2O5. Molar mass = g/mol b. Calculate the molar mass of Caz (PO4)2 .…

A: Molar mass is the weight of one sample. First one is Phosphorus pentaoxide -contains 2 phosphorus…

Q: Mass NaHCO36.9341 5. Calculate the moles of NaHCO3 in the sample and record the data below. 0.0825…

A: Mass of sodium bicarbonate dissolved= 6.9341 g  Volume of the solution= 0.05 L  Density of the…

Q: 1. Ammonium chlorate is an unstable explosive that also happens to be highly soluble in water. It is…

A: Molecular formula and molecular weight of ammonium chlorate is given in the next step

Q: 4. Modern pewter is composed of 91.0% Sn, 7.5% Sb and 1.5 % Cu. What mass of pewter contains 150. g…

A: Answer: This question is based on mass percentage calculation where Mass % of an element=Mass of the…

Q: a. Calculate the molar mass of P2O5. Molar mass = g/mol b. Calculate the molar mass of Ca3 (PO4)2 -…

A:

Q: 3. Given: NaCl 1 NiCl₂ + 2 NaOH → 1 Ni(OH)₂ + 2 A student combines 2.44 g of NiCl₂ with 6.44 g NaOH.…

A:

Q: 14. What is the molar mass of Ca? 16. 078 15. What is the molar mass of H₂SO4? What is the mass of 3…

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

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.