39. How many grams are in 2.3 x 1024 formula units of KNO3? (A) 38.6 grams (B) 102.3 grams (C) 140 grams (D) 386 grams

Q: 58. The number of hydrogen atoms present in 25.6 g of sucrose (C12H2201), which has a molar mass of…

A: Detail mathematical calculation for determining number of atoms of hydrogen is given below

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: We know that   To find the percentage by mass of each element in the given compounds we have to use…

Q: 1. Use chemical symbols to generate the factor needed to convert the weight of the substance in uie…

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

Q: 6. This question refers to the compound aluminum sulfate octadecahydrate, Al2(SO4)3-18H₂O. Report…

A: Note: As per our guidelines, we are supposed to answer only three subparts when multiple subparts…

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: The mass percentage of an element in a particular compound can be found by dividing the atomic mass…

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: The emperical formula can be calculated as follows

Q: Calculate each of the following quantities: (a) Amount (mol) of 0.588 g of ammonium bromide (b)…

A: Since you have posted questions with multiple subparts we will solve the first three subparts for…

Q: Nitrous oxide (N,0), also known as “laughing gas," is commonly used as an anesthetic in dentistry.…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Balance the following skeletal chemical equations. (Use the lowest possible coefficients.)(a)  Al(s)…

A: Balanced the following reactions-

Q: I already received help with A, B, and C but I still need the explanation and solution to subpart D.…

A: 1 mole = 6.023 * 10^23 atoms = Avogadro No

Q: A sample of a substance with the empirical formula XCI3 weighs 0.4884 g. When it is dissolved in…

A:

Q: Consider the balanced chemical reaction shown below. 4 NH3(g) + 5 O2(g) 4 NO(g) + 6 H2O(g) In a…

A:

Q: - Considering the reaction; C3Hs + 5023CO2 + 4H₂O what is the total mass, in grams, of all products…

A:

Q: When ammonia (NH3) is reacted with an excess of oxygen gas, it produces nitrogen monoxide gas and…

A:

Q: How many grams of Cl are in 38.0 g of each sample of chlo-rofluorocarbons (CFCs)? (a) CF2Cl2(b)…

A:

Q: Calculate the number of moles in each of the following. (a) 39.8 g of methane, CH4 mol (b) 369.2 g…

A: Calculation of mole of any substance is done via ratio of wt. to m.wt.

Q: A compound has the composition of 26.28% Carbon, 5.15% Hydrogen, 10.22% Nitrogen, and 58.35% Oxygen,…

A: Since percent composition is given, let's consider 100 g of the compound. For 100 g of the compound,…

Q: Calculate each of the following quantities:(a) Mass in grams of 6.44x10^-2mol of MnSO₄(b) Moles of…

A: Number of moles of MnSO4 = 0.0644 mol Mass of MnSO4 is determined by multiplying the number of moles…

Q: (c) How much volume of 1.3 M NaOH solution can be made by diluting 48 ml of 4 M NaOH.   (d)…

A:

Q: Uranium is used as a fuel, primarily in the form of uranium(IV) oxide, in nuclear power plants. A…

A: To solve this problem first we have to calculate the mass of oxygen combined , then we will…

Q: (a) How many moles of ammonium ions are in 0.642 g of ammonium carbonate? 8.04e21 X mol (b) What is…

A: We have to calculate the required quantities.

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: The mass percentage of an element in a particular compound can be found by dividing the atomic mass…

Q: Calculate each of the following quantities. (a) mass in kilograms of 4.8  1020 molecules of NO2…

A:

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

A: “Since you have posted multiple questions, we will provide the  solution   only to the first…

Q: A 2.78 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

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

Q: (b) Find the mass of barium sulphate (BaSO4) from the data given in the table.…

A: Dear student I cam solve only max three parts of the question as per bartleby guidelines. Please…

Q: Calculate each of the following quantities:(a) Mass in grams of 8.35 mol of copper(I) carbonate(b)…

A: a) Mass in grams of 8.35 mol of copper(I) carbonate can be calculated as, Now substitute the know…

Q: One of the compounds used to increase the octanerating of gasoline is toluene(right).Suppose 20.0 mL…

A: The given data contains , volume of toluene =20 ml Density of toluene =0.867 g/ml

Q: How many grams of Ca(NO3)2 contains 36 grams of oxygen atoms? (A) 15 g (B) 30. g (C) 24.5 g (D) 37…

A: molar mass is defined when we take mass for only one mole ie, for 6.023 ×10-23 atoms. If we have to…

Q: Be sure to answer all parts. Propane (C3Hg) is a minor component of natural gas and is used in…

A: Part a)  given reaction :-   C3H8(g) + O2(g)  --->  CO2(g) + H2O(g)    Part b)   given moles of…

Q: Balance these chemical equations. (Use the lowest possible whole number coefficients.) (a)    SO2 +…

A:

Q: Calculate each of the following quantities:(a) Mass in grams of 8.42 mol of chromium(III) sulfate…

A: (a) Molar mass of Cr2(SO4)3 .10H2O = 2 x 52+3(32.06+ 64)+10(2.016+16)…

Q: In each pair, choose the larger of the indicated quantities orstate that the samples are equal:(a)…

A: Note: Since we only answer up to 3 sub-parts we'll answer the first 3. Please resubmit the question…

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A:

Q: Write the molecular and empirical formulas of the following compounds:

A: Given: Four compounds:

Q: compound has the composition of 66.6% Carbon, 11.2% Hydrogen, and 22.2% Oxygen, by mass. If the…

A: Given is, 66.6% Carbon, 11.2% Hydrogen, and 22.2% Oxygen Molar mass= 144.2 g/mol

Q: Question attached

A: a) Given : The compound contains only C, H and O.

Q: (a) How many moles of ammonium ions are in 0.459 g of ammonium carbonate?  _______mol(b) What is the…

A: The chemical formula of a compound represents 1mole of molecules present in it. Molar mass of a…

Q: The mineral galena is composed of lead(II) sulfide and has an average density of7.46 g/cm3. (a) How…

A: Mineral are substances formed  naturally  in the earthGalena mineral  is ore of lead

Q: Nitroglycerin (C3H;N3O9) is a powerful explosive. Its decomposition may be represented by 4C3H3N309…

A: a)  Given,

Q: Calculate each of the following quantities:(a) Total number of ions in 38.1 g of SrF₂(b) Mass in…

A: The number of moles is equal to the ratio of mass to the molar mass of the substance. The total…

Q: Be sure to answer all parts. The balanced equation for the reaction of aluminum metal and chlorine…

A: The question is based on the concept of reaction stoichiometry.   we need to calculate quantity of…

Q: Calculate the following: (a) mass in 1.73 mol of CaH 2 (b) moles of mg (NO3) 2 in 3.25 g of…

A:

Q: (a) H₂O2 molecular mass conversion factor (b) C6H12 molecular mass conversion factor (c) SO₂Cl₂…

A: H2O2,C6H12, SO2Cl2

Q: Which of the following chemical formulas and names of compounds correctly matched? (A) PbO2 = lead…

A: Naming of a compound is done by looking at the atoms which are combined and what they are called in…

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.