A 1.19 g sample of an unknown halogen occupies 109 mL at 398 K and 1.41 What is the identity of the halogen? (Hint: use the ideal gas law to find n (mol Then divide mass by mnoles to find molar mass. Then match this molar mass the molar mass of the halogens: F2. Cl2, Br2 and I2) 1) Bromine O 2) Fluorine 3) Chlorine 4) lodine 5) Germanium

Q: How many moles of Carbon (C) will be formed, given 0.1175 moles of Silicon (Si)? * 2 CO + 1 Si –1…

A: The mole is the measurement unit for the quantity of the material in the International System of…

Q: 2. A compound has the following chemical formula; CuAl6(PO4)4(OH)8 4 H₂O. Calculate the mass…

A:

Q: Combustion of iron creates iron(III) oxide. How many moles of oxygen are needed to fully convert…

A: Combustion, a chemical reaction between substances, usually including oxygen and usually accompanied…

Q: A certain metal oxide has the formula MO where M denotes the metal. A 44.30-g sample of the compound…

A: MO + H2 → M+H2O44.30 g           33.51 gSince ,        Mass of MO=44.30 g       Mass of M= 35.51…

Q: How to calculate mass (in grams) of one formula unit of 13.0 g of Ca(NO3)2?

A:

Q: How many barium ions are contained in 725 g of Ba3(PO4)2? Molar mass of Bag(PO4)2 is 601.93 g/mol. O…

A:

Q: 3 FeS2   +  11 O2   →  Fe3O4   +  6 SO3 100 g of iron sulfide was reacted with excess oxygen,…

A: 3 FeS2   +  11 O2   →  Fe3O4   +  6 SO3 Atomic masses Fe=56; S=32, O=16 Molecular mass of…

Q: Phosgene, a substance used in poisonous gas warfare during World War I, is so named because it was…

A:

Q: An element X forms both a dichloride (XCl2) and a tetrachloride (XCl4). Treatment of 10.000gm of…

A:

Q: molecular weight

A:

Q: What is the mass (in grams) of 1.25 x 10^22 molecules of SeO2?

A: 1 mole of any species contains Avogadro's number i.e. 6.023 × 1023 of its constituent particles…

Q: Calculate the mass in grams of 1.10 x 1024 molecules of Sulfane, H2S. g NA= 6.022 x 1023

A:

Q: Phosgene, a substance used in poisonous gas warfare during World War I, is so named because it was…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Please provided a SUPER DETAILED answer as to how to come up with the correct answer. (And if there…

A: In the question we have given mass of N2O formed = 8.75gm Since moles = mass / molecular mass and…

Q: 2 Fe203 + 3 C → 4 Fe + 3 CO2 how many moles of Carbon (C) are needed to produce 1.9 moles of Iron…

A: The given equation is as follows 2Fe2O3 +  3C ----------->>> 4Fe + 3CO2  According to…

Q: The fuel used in many disposable lighters is liquid butane, C4H10C4H10. Butane has a molecular…

A: The molar mass of butane is 58.1 g/mol. 1 mole of butane contains 6.023 × 1023 atoms and 1 mole of…

Q: The formula for dinitrogen monoxide is N2O. If a sample of the oxide was found to contain 0.0800 g…

A:

Q: A grain of sand weighs 7.7 × 10−4 g. How many formula units of silicon dioxide, SiO2, are in one…

A: The mass of one formula unit of SiO2 = 60.08 g/mol

Q: CH4 (g) + 202 (g) C02 (g) + 2H20(g) Suppose 8.00 g of CH4 is allowed to burn in the presence of…

A: Given information: 8.00 g of CH4  16.00 g of oxygen The reaction is given as follows: CH4 (g) +…

Q: Convert 0.834 mol of le ad(M) nitrate, Pb(NO3)4(s), into mass.

A: Given :-  Number of moles of Pb(NO3)4 = 0.834 mol  To convert :-  0.834 mol to grams

Q: Suppose 7.60 g  of CH4 is allowed to burn in the presence of 16.90 g  of oxygen.…

A: The required balanced equation is given below.

Q: Codeine, a narcotic drug used to treat cough, has an empirical formula of C18H21NO3. What is the…

A: Please find your solution below :

Q: A 0.812 g sample of a compound containing carbon, hydrogen and oxygen was burned in air to produce…

A:

Q: What is the molecular formula for a substance that in 1.00 mole of sample contains, 1.00 mole of C,…

A:

Q: One term in a balanced chemical equation contained the coeffi cient 3 in front of the formula Al…

A: The subscripts in the molecular formula represent the number of atoms of each type present in the…

Q: KC1O3 (s) +P.(s)P0,(s) + KCl(s) (unbalanced)

A:

Q: Considering ZnCO3 has a molar mass of 125.40 g/mol and Avogadro's number is 6.022 x 10^23, what mass…

A:

Q: 1. Sphalerite is a zinc sulfide (ZnS) mineral and an important commercial source of zinc metal. The…

A: (1) Given that , mass of zinc sulfide = 5.00×103 g = 5000 g    Now, from following Reaction -  2ZnS…

Q: A.)If 4.76  mL of seawater contains about 5.46×10-14  moles of gold, how many atoms of gold are in…

A: Given, A.)If 4.76  mL of seawater contains about 5.46×10-14  moles of gold, number atoms of gold are…

Q: Calculate the amount of  anions (in moles) in 8.6 g of magnesium perchlorate. Express your answer…

A: Magnesium perchlorate, Mg(ClO4)2 dissociates into three ions as given by the equation: Mg(ClO4)2 →…

Q: A sample of aluminum contains 2.91 x 1022 atoms of aluminum. What is the mass of this sample?…

A: Number of aluminum atoms = 2.91 x 1022 atomsmass of sample of aluminum = ?Note: Avogadro’s number:…

Q: A 2.1880 g sample of a hydrate of Cu(NO3)2 was heated to drive off all of the water of hydration.…

A: The objective of this question is to determine the value of 'x' in the formula of the hydrate…

Q: A sample of phosphorus weighs 3.8 x 103 ng.  How many phosphorus atoms are present in this sampme?…

A:

Q: 4. An 8.00 gram sample of the hydrated salt, CoCl2 • X H2O was thermally decomposed into anhydrous…

A: The question is based on the concept of reaction stoichiometry. We have  to calculate mole ratio of…

Q: A 3.06 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: Empirical formula: Formula containing atoms in smallest possible integer ratio Molecular formula:…

Q: Calculate the mass of 3.62 x 104 molecules of glucose (C,H1206).

A: Given that :Molecules of glucose (C6H12O6) = 3.62×1024 molecules Mass of glucose =?

Q: What mass of oxygen would be required to convert 4.00 g of sulfur into sulfur trioxide (SO3)?

A: Given, amount of sulfur =4.00 gramwe are asked to calculate the mass of oxygen would be required…

Q: What chemical property of potassium chlorate did you use to design a procedure to determine the…

A: Interpretation-  Tell that chemical property of potassium chlorate which we use to design a…

Q: If an empirical formula for a compound is CH2O, and the molar mass of the compound is 90.08 g/mol,…

A: We know molar mass of : carbon(C) = 12.01 g/mol hydrogen(H) = 1.007 g/mol oxygen(O) = 16.00 g/mol…

Q: Chromium(III) oxide can be made from the reaction of sodium dichromate and ammonium chloride. What…

A: Given, mass of  sodium dichromate (Na2Cr2O7) = 108.7 g mass of ammonium chloride (NH4Cl) = 61.6 g…

Q: A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields…

A:

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.