How many moles of sulfate ions are contained in 0.420 moles of aluminum sulfate?   A. 0.140 moles   B. 0.420 moles   C. 1.26 moles   D. 0.840 moles

Q: 6. How many grams of CoSO, are there in 100.0 g of hydrate? How many moles? What per- centage of the…

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Q: A 2.25 g sample of Ammonium carbonate contains how many moles of ammonium carbonate? Molecules of…

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Q: A 12.35 g sample of aluminum hydroxide contains how many mol of hydroxide ions?

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Q: Covert 0.00823  moles of  HCL to g   Convert 0.00911 moles Mg to g

A: Using formula:    No Of moles (n)= given mass/molar mass  No of moles of HCl is 0.00823mole No. Of…

Q: A student is given a sample of red cobalt sulfate hydrate. She weighed the sample in a dry covered…

A: Calculation of amount of CoSO4 in 100 g of hydrate:In 100 g of the hydrate, the amount of water…

Q: Part B: NazCO; Reaction: 1. Determine the experimental mole-to-mole ratio of NazCO3 to NaCl from…

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

Q: Copper(II) fluoride contains 37.42% F by mass. Use this percentage to calculate the mass of fluorine…

A: Mass percentage of an element in a given compound is the mass of that particular element divided by…

Q: A alkaloid compound contains 74.02% C, 8.710% H and 17.27% N. The empirical formula of the compound…

A: Given:  Weight % of carbon = 74.02 %  Weight% of hydrogen = 8.710 %  Weight % of nitrogen = 17.27 %…

Q: 1. How many moles of lead(IV) oxide, PbO2, are present in a sample that contains 7.65 moles of oxide…

A: Since you have posted multiple questions, we are entitled to answer only the first question.

Q: 1. Determine the experimental mole-to-mole ratio of Na2CO3 to NaCl from reaction data. a) First,…

A: Note - Since you have asked multiple questions, we will only do the first question for you. To get…

Q: How many moles are present in 0.868g of Mg? include units.

A: We have given that  How many moles are present in 0.868g of Mg? include units

Q: When doing a dilution, the concentration should go (up / down / stay the same). The total number of…

A: Molarity = no.of moles of Solute/volume of solution in L

Q: 14 7. a. b. Molarity Moles Vol(L) Molarity Moles Vol(L) 0.0951 0.424 0.545 2.98 d. Molarity Moles…

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Q: Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data 51.368 g (a) Mass of…

A: Given that,  Mass of sodium carbonate used = 0.309 g Molar mass of sodium carbonate = 105.99 g/mol…

Q: thimble of water contains 4.0×1021molecules. The number of moles of H2O is?

A: Moles =molecule/6×1023 Moles= 4×1021/6×1023 Moles= 0.66×10-2

Q: If you were asked to convert between moles of A and moles of B according to the equation below, what…

A: Stoichiometry describes the relation between the reactants and products in a chemical reaction to…

Q: 39. ** Questions 37 through 39 use the reaction: 2 Fe (s) + 6 HCI (aq) → 2 FeCl3 (aq) + 3 H2 (g)…

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Q: 10. What is the molar mass of diphosphorus pentaoxide? * this is incorrect 80 g/mole 284 g/mole 150…

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Q: Conversions from moles to molecules involve how many steps? A. 1-step because 1 mole = 6.02X10^23…

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Q: How many formula units of sodium chloride are present in a 3.500 mol sample

A: We have to predict the number of formula units.

Q: This data table is given find the atoms of each element and the total number of atoms in each…

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Q: • Part B How many grams of NH3 can be produced from 4.05 mol of N2 and excess H3. Express your…

A: Given N2=2.05 mol The quantity of ammonia has to be calculated in grams so that it can be produced…

Q: Trial 1 Trial 2 Trial 3 Moles HCI (mols) (Use the balanced equation to 7. create a mole ratio to…

A: We know, molarity of solution (here HCl ) = moles of HCl / volume of HCl solution…

Q: moles

A: Mole = mass (gm) / molar mass (gm) We find grams = ? Grams = moles × molar mass             = 0.05 ×…

Q: 4NH3(g)+5O2(g)---->4NO(g)+6H2O What is the mole-mole factor (ratio) of O2 to H2O?

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Q: 22) A sample has a molar mass of 143 g/mol, identify the sample. A) ACCI B) AuCI C) AGCI

A: Molar mass of any molecule is given as the sum of the atomic masses od each of the constituent…

Q: What units would you put under “molar mass” and “Avogadro’s number”on this diagram?

A: The given flowchart suggests that grams i.e. weight can be easily converted to moles using the molar…

Q: Calculate the number of CC atoms in 0.997 molmol of CC.

A: We know that the total number of atoms in 1mole of a substance is constant that is the avogadro's…

Q: Moles are the fundamental unit of chemistry. Why are moles so important? Please comment on molecular…

A: The amount of any substance is measured in a unit known as a mole which is equal to 6.023 x 10^23…

Q: Determine the number of moles of phosphorus contained in 4.41 × 1024 atoms of phosphorus.…

A: Given , Number of atoms of phosphorus = 4.41 × 1024

Q: Number of Moles of O, boiled off Mole ratio of KCIO, to O, Number of Moles of KCIO, (before boiling…

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Q: How many moles are in 2.5 g of N2? 0.089 moles 0.18 moles 1.3 moles 11 moles

A: We have give that  Mass of N2 = 2.5 g  And we have to find number of moles in 2.5 g of N2

Q: Use the References to access important values if needed for this question. a. How many moles of…

A: The formation of carbon tetrachloride takes place through a photochemical reaction of chlorine atoms…

Q: What is the ratio of copper to sulfur (mole Cu/mole S) to the nearest whole number? Moles =…

A: Moles of copper = 63.546 g/mol Mass of copper = 0.4796 g The molar mass of sulfur = 32.065 g/mol…

Q: Consider the following reaction H2 (g) + F2 (g) → 2 HF (g) Given 3.2 moles of H2, the number of…

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Q: Mass of zinc coating =0.15g Number of moles of iron = 0.0184 mol Number of moles of zinc = 0.00229…

A: The galvanized iron contains both iron and zinc, whereas the iron core contains only iron. We are…

Q: According to the following reaction: 12HCIO4 (aq) + P4010 (s) –→ 4H3PO4 (aq) + 6CI207 (1) What would…

A: Number of moles = mass/molar mass  The total number of moles of a particular product formed will…

Q: Consider the 124g sample of the compound? Determine the moles of calcium chloride present (a)number…

A:

Q: Excel Assignment After reading the excel tutorial under documents, answer the following questions in…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: Determine the correct mole ratios, yes, you will select more than one, for the following balanced…

A: Answer

Q: Now moles: v moles of H2 + v moles of O2- moles of H20

A: given unbalanced reaction, _moles of H2 + _moles of O2 → _ moles of H2O

Q: How many moles of sulfur atoms are present in a sample that contains 2.14 moles of disulfur…

A: 1. Given :-   number of moles of sulfur decafluoride = 2.14 mol  To calculate :  number of moles of…

Q: a. 1.25 moles of aluminum chloride ). 3.35 moles of sodium hydrogen carbonate C. 4.25 millimoles of…

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Q: Which mole ratio does not apply for the balanced chemical equation below? 2 C2H2 + 5 02 → 4 CO2 + 2…

A: The balanced reaction given is,

Q: Name: Calculate each of the molar masses below. Use the space below in each box to show your work.…

A: Ans : 3) 1 mole of Mg =  24.31 g Mg i e  Mg = 1g × 24.31  Total = 24.31 g     4) 1 mole of H2SO4…

Q: Bottle Moles of Acetic Acid Moles Sodium Bicarbonate 8.3 x 10-3 moles 2 8.3 x 103 moles 3 8.3 x 103…

A: Sodium bicarbonate,

Q: How many moles of NBr3 can be made from 2.22 x 102 moles of N2 ?  N2   +   3 Br2   →   2 NBr3   +…

A: One mole is defined as which contain 6.022* 10^23 atoms. Number of moles is calculated by dividing…

Q: Ammonium nitrate fertilizer is sometimes used as an explosive. a) How many moles of water can be…

A: number of moles = mass/molar mass  mass = moles × molar mass

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.