Calculate each of the following quantities: (a) Amount (mol) of 0.588 g of ammonium bromide (b) Number of potassium ions in 88.5 g of potassium nitrate (c) Mass (g) of 5.85 mol of glycerol (C3H8O3) (d) Volume (L) of 2.85 mol of chloroform (CHCl3; d 5 1.48 g/mL) (e) Number of sodium ions in 2.11 mol of sodium carbonate (f) Number of atoms in 25.0 mg of cadmium (g) Number of atoms in 0.0015 mol of fluorine gas

Q: How many grams are present in 2.4x1045 molecules of H2O2?

A: Given :- number of H2O2 molecules = 2.4 × 1045 molecules  To calculate :- mass of H2O2 (in grams)

Q: a) Patients who have a zinc deficiency can take tablets consisting of a hydrated zinc sulfate,…

A: #(a): Mass of hydrated zinc sulfate tablet, ZnSO4.XH2O = 5.073 g  Mass of anhydrous sulfate,…

Q: Acetylene gas is 92.3% carbon and 7.7% hydrogen (by mass), and its miler mass is 26 g/mol. What is…

A: A numerical problem based on molecular formula determination, which is to be accomplished.

Q: One of the hydrates of Na2CO3 is sodium carbonate decahydrate A 55.6 gram sample of Na2CO3  10 H2O…

A: b b

Q: The active ingredient in Tum is calcium carbonate. a). What is the chemical formula of calcium…

A: A.Chemical formula of calcium carbonate is CaCO3. B. Molar mass of calcium carbonate is 100g/mol.…

Q: A sample of hydrate was heated thoroughly. How many waters of hydration are there if the anhydrous…

A:

Q: 2. Fermentation is a complex chemical process of wine making in which glucose is converted into…

A: Given- balanced Chemical equation -    C6H12O6 -------> 2C2H5OH + 2CO2    Mass of glucose = 500.4…

Q: Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon (CFC) production was…

A: Given : Number of automobiles = 100 million = 100 X 106                                  (since 1…

Q: For the chemical reaction, 2 KI + Pb(NO,), Pbl, + 2 KNO, what mass of lead(II) nitrate in grams is…

A: In a balanced chemical reaction, stoichiometry gives the relationship between the amount of…

Q: Balance the following chemiccal equation  C12H26(s) + O2(g) --> CO2(g) + H2O(l)   Combustion of…

A: We have to balance the following given chemical equation    C12H26(s) + O2(g) --> CO2(g) + H2O(l)…

Q: (a) What is the chemical formula of eugenol, the main contri butor to the aroma of cloves? (b)…

A: a) We have to find chemical formula of eugenol, the main contributor to the aroma of cloves.…

Q: Solving for a reactant using a chemical equation Ammonium perchlorate (NH CIO) is the solid rocket…

A: The dissociation reaction of ammonium perchlorate is given below.2 NH4ClO4 → N2 + Cl2 + 4H2O + 2O2

Q: 1. Ammonia, NH3, a common fertilizer is made by causing hydrogen (H2) and nitrogen (N2) to react at…

A:

Q: Combustion of hydrocarbons such as propane (C3H₂) produces carbon dioxide, a "greenhouse gas."…

A: Combustion reaction; Combustion reaction is a reaction in which hydrocarbons react with Oxygen (O2)…

Q: When determing the molecular or empirical forumula of a compound given the composition in grams,…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: For the following chemical reaction, what mass of sulfuric acid, H2SO4, in grams will be needed to…

A:

Q: Disulfide dichloride (S,Cl,) is used in the vulcanization of rubber, a process that prevents this…

A:

Q: Calculate the mass in grams of 2.688 mol of       a. chlorophyll, C55H72N4O5Mg, responsible for  the…

A:

Q: If 10.00 ml of 0.0138 M KIO3 are used in the first part of the standardization process, how many…

A:

Q: (a) What is the mass, in grams, of 1.223 mol of iron(III)sulfate?(b) How many moles of ammonium ions…

A: (a) Given, Moles of iron (III) sulfate is 1.223 mol Molar mass of iron (III) sulfate is 399.88 g/mol…

Q: TCDD, also called dioxin (C12H4Cl4O2, molar mass 322.0 g/mol), is a potent poison. The average…

A:

Q: When 12.0 g of carbon is burned in oxygen during an experiment, only 26.1g of carbon dioxide was…

A: The percentage of yield of a reaction= experimental yieldtheoritical yield×100 % The theoretical…

Q: If 15.0 g of methanol (CH3OH) reacted, how many grams of carbon dioxide (CO2) gas would be produced?

A:

Q: One of the first chemical WMDs, researchers initially produced VX nerve agent for retail sale in the…

A: we need to determine the empirical formula of the nerve agent

Q: 3. Using the percentage equation given in the introduction, if 8.912 g of sand are recovered from an…

A: Percentage of a component in a mixture is given by the formula  % = [ mass of component / mass of…

Q: a) What is the mass, in grams, of 2.50 x 10-3 mol ofammonium phosphate?(b) How many moles of…

A: The number of moles of ammonium phosphate ((NH4)3PO4) IS 2.50×10-3 mol To calculate the mass of a…

Q: Magnesium oxide (MgO) forms when the metal burns in air.(a) If 1.25 g of MgO contains 0.754 g of Mg,…

A: Magnesium burns in air, which results in the formation of magnesium oxide. It is expressed in the…

Q: Taking 28,6 g of Na2CO3.xH2O, it is heated in a burner flame. After the heating process, the mass of…

A: The reaction when Na2CO3.xH2O is heated is as follows: Na2CO3.xH2O →Na2CO3+xH2O

Q: A sample of a compound decomposes into its elements A and B.  When the compound decomposes 7.75g of…

A: Given : Mass of B produced = 7.75 g Mass ratio of A and B = 3.60  And compound decomposes to A and…

Q: Phosphorus reacts with oxygen to form diphosphorus pentoxide, P2O5P2O5.…

A: Number of moles of P can be calculated as follows: No. of  moles of  P = massmolar mass= 1.85…

Q: How many moles of sucrose, C12H22O11, are in a 25-g sample of sucrose?

A: The atomic mass of , C = 12                                    H = 1…

Q: The chemical formula for octane is: CH,(CH,),CH, Calculate the molar mass of octane. Round your…

A: The given formula of octane: CH3(CH2)6CH3 We have to calculate the molar mass of octane.

Q: Toluene has a density of  867 kg/m³ and its molar mass is 92.14 g/mol. If 100 mL of Toluene is…

A:

Q: (a) What is the mass, in grams, of 4.62  1023 molecules of aspirin, C9H8O4?

A:

Q: An industrial detergent was found to be composed of 57.72% C, 8.073% H, 17.09% O, by mass and the…

A: Let's assume, the empirical molecular formula of the given compound is CaHbOcX2c. 'a' is the no of…

Q: Suppose that in the synthesis of isoamyl acetate, a student began with 6.209 grams of acetic acid…

A: The theoretical yield of the reaction is calculated as,

Q: 5. The depletion of ozone (O,) in the stratosphere has been a matter of great concern among…

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

Q: Combustion of hydrocarbons such as propane (C,Hg) produces carbon dioxide, a "greenhouse gas."…

A: You have given that combustion of propane gas takes place.  The balanced chemical reaction is given…

Q: Combustion of hydrocarbons such as nonane (C,H20) produces carbon dioxide, a "greenhouse gas."…

A:

Q: An ore sample is known to contain copper sulfate pentahydrate, CuSO4•5H2O. If a 10.392 g sample of…

A:

Q: Mesitylene, a hydrocarbon found in crude oil, has an empirical formula of C3H4 and an experimentally…

A: The formula weight of the empirical formula is: C3H4 = 3×(Atomic mass of C) + 4×(Atomic mass of H) =…

Q: 2. Early rockets used a fuel composed of hydrazine (N2H4) and dinitrogen tetraoxide (N204), which…

A: Given: The mass of N2H4 is 1.00×102 g. The mass of N2O4 is 2.00×102 g.

Q: If 0.525 g of Fe2O3.xH2O are heated and 0.408 g of Fe2O3 are obtained, what is the value of x?

A: Weight lose can be calculated as,Heating will remove the water of hydration so the difference in…

Q: 3. What mass of KIO, is needed to convert the copper in 0.2750 g of CuSO, 5H,0 to Cu(IO,),?

A: First, write out the chemical equation. 2KIO3 +CuSO4.5H2O  ----> K2SO4 +5H2O+Cu(IO3)2

Q: I am having a bit of trouble with significant figures and rounding. In a question such as the one…

A: Significant figures are basically the measure of uncertainty in measurement.In the answer,digits are…

Q: The reaction of aluminum and bromine is pictured below. The white solid on the lip of the beaker at…

A:

Q: The percent by mass of silver in Ag,CO3 is %.

A: Molecular mass of Ag2CO3 = 2*atomic mass of Silver + atomic mass of Carbon + 3*atomic mass of Oxygen…

Q: A high-performance heater that burns propane, C3H8(g), is adjusted so that 100.0 g of O2(g) enters…

A: The number of moles of oxygen (O2) present (nO) in 100.0 g of oxygen gas is calculated using…

Q: If Avogadro’s number of pennies is divided equally amongthe 321 million men, women, and children in…

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.