Answered: If a sample of BaBrz is found to…

If a sample of BaBrz is found to contain 2.34 · 103 mol of Ba2+ ions how many moles of Br" ions are present? Express your answer in scientific notation. x 10

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter4: Molecules, Compounds, And Chemical Reactions

Section: Chapter Questions

Problem 4SC

See similar textbooks

Related questions

Q: What is the total number of oxygen atoms on the right-hand side of this chemical equation?…

A: Interpretation: The total number of oxygen atoms on the right-hand of the given chemical equation…

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: Barium chloride dihydrate has the formula BaCl2 · 2H2O. Assume there is another hydrate (BaCl2…

Q: Calculate how many grams of chlorine gas are in 8.031 x 1023 atoms of chlorine gas.

A: Given: Atoms of chlorine gas is 8.031×1023 Mass of one mole of chlorine gas is 70.9 g

Q: How many moles are in 4.8 x10 24 molecules of Na „0?

A: Answer :- Number of moles of Na2O = 8

Q: .07 x 1024 CH4 molecules mol 24.3 g of Cu. mol

A: Interpretation: We have to calculate moles.

Q: Calculate the mass in grams of 3.65 x 1024 molecules of methanol. The chemical formula for methanol…

A: Given, Number of molecules of methanol (CH4O) = 3.65 × 1024 molecules Mass (in grams) of 3.65 × 1024…

Q: Which of the following conversion factors is correctly set up to determine the number of moles of…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: 12. If that hamburger contains 3.1 x 10 moles (or 0.000 000 31 moles) of selenium, how many grams of…

A: Given, Moles of selenium = 3.1 × 10-7 moles Note: Atomic mass of selenium = 78.96 g/mol Mass (in…

Q: 5) 0.7971 g of molecule, X, is found to contain 3.0 x 1022 atoms. Deduce the identity of X. Given N…

A: Given: Mass of X2 = 0.7971 g Atoms of X2 = 3.0×1022 NA = 6.023×1023 mol-1

Q: What is the mass in grams of 6.91x 1015 chromium atoms? Put your answer in box in scientific…

A: Given,No of atom of Cr= 6.91* 1015 We have to find out the mass of Cr in grams.

Q: How many moles of gold are present in a sample containing 7.50 x 1024 atoms of gold?

A: Given- Number of atoms of gold = 7.50 ×1024 atom

Q: Use the molar mass of Ca3(PO3)2 to calculate the moles of oxygen in 6.66 x 106 g of CP. Give your…

A: given mass of Ca3(PO3)2 = 6.66 x 106 g Molar mass of Ca = 40.078 g/mol Molar mass of P = 30.974…

Q: What mass of iron (III) oxide is produced when 3.88 X 1025 grams of oxygen reacts with excess…

Q: Write the six (6) conversion factors (ratios) that you can derive from the relations below: 1 mole…

A: The mathematical entity that is employed to convert the units of a substance from one value into…

Q: How many moles are in 3.41 x 1024 molecules of CaCO3?

A: A mole contains 6.022×1023 atoms or molecules or particles. This number, 6.022×1023 is called the…

Q: How many grams are in 3.02 x 1021 molecules of nitric acid?

A: Niric acid ⇒ HNO3Molar mass of Nitric Acid = 1 x atomic mass of Hydrogen +1 x atomic mass of…

Q: g. If the chemical reaction produces 2.19 x 102 grams of AlCl3, then how many moles of MgCl2 were…

A: Since, you have asked multiple questions, so I will solved first question for you step by step in…

Q: If a sample of Ca(OH)2 is found to contain 5.34 mol of OH" ions how many moles of Ca?+ ions are…

A: Given: moles of OH- ions = 5.34 mol

Q: How many moles of C4H10 contains 9.25 x 10^24 molecules of C4H10?

A: Conversion of units:- This can be done by a methond called unit factor method orcalled…

Q: | 5.00 g of an organic compound was found to contain 2.73 g of carbon, 0.46 g of hydrogen and 1.81 g…

A: Given data- total mass of organic compound = 5.00 g mass of Carbon…

Q: How many grams are in 7.89 x 10 24 atoms of H2SO4?

Q: Using the average atomic mass, calculate the mass in grams of each of the following samples.…

A: Given information, 4.50 x 103 mol of germanium, Ge

Q: How many grams of carbon tetrachlorride are in 1.01 x 1024 molecules?

A: Given: Number of molecules= 1.01×1024 To find: Grams of carbon tetrachloride Formula: Number of…

Q: The snicker bar you just bought has 1.40 x 1029 molecules. How many moles is that?

A: Given data: The number of molecules in the snicker bar = 1.40 x 1029 molecules. To calculate: The…

Q: How many carbon atoms are present in 5.400 x 10 * mol of carbon? Give your answer in scientific…

A: Here number of mole of carbon= 5.400 × 10-4 Mole We know that 1mole= Avogadro number…

Q: How many H atoms are there in (3.80x10^2) grams of H2O?

A: Number of moles = Mass/Molar mass Number of atoms in 1 mole = 6.0224 x 1023 Molar mass of water =…

Q: Determine the quantity of moles of hydrogen in 3.06 x 10-3g of glycine , C2HSNO.?

A: Please find your solution below : Mole is a measure of amount of any substance. It is defined as…

Q: 12, How many grams of O2 gas are there in 6.30 x 1026 molecules? 13. What is the mass in grams of…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: 1) How many moles of cobalt (Co) atoms are there in 6.00 X 10 (6 billion) Co atoms? 2) How

A: We know, 1 mols = 6.022x1023 atoms

Q: Complete the following calculation and upload your work. You have 5.63 x 1024 atoms of the…

Q: 3.01 x 1023 molecules of sucrose is _ _ _ _ _ _ _ _ _ _ _ _ _ moles of sucrose. Why don’t you need…

A: Given : Number of molecules of sucrose = 3.01 X 1023 molecules.

Q: 2 NH3 + 3 CuO → 3 Cu + N₂ + 3 H₂O In the above equation, how many grams of N₂ can be made when 6.1…

Q: What is the empirical formula of C6H10O2?

A: The C6H10O2 is Allyl glycidyl ether. Empirical formula of a chemical compound is the simplest…

Q: cylinder contains 1.475 x 1024 argon atoms. How many moles of argon are there in the cylinder?

Q: How many moles are in 2.45 x 10^23 molecules of Na2S?

Q: See the example in Introduction for set-up of calculations. Calculate the number of a) moles of F b)…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

Q: The chemical formula for feldspar is K₂Al₂Si₆O₁₆. How many moles of feldspar are in 990.5 grams?

A: First, calculate the molar mass of K₂Al₂Si₆O₁₆. Molar mass = 2×(molar mass of K) + 2×(Molar mass of…

Q: 13) How many moles are there in 4.50 x 1022 molecules of CH,?

A: 13. Number of particles = 4.50 x 1022 molecules Number of atoms = Number of moles of CH4 x NA Here…

Q: 1. How many moles would contain 12.0 g of P ? 2. Find the mass (in grams) 7.7 X 1023 molecules of…

A: 1. Given values , Mass of P= 12.0 g Molar mass P= 30.973762 g/mol

Q: 5. The empirical formula of a compound is CaH10. hat could its molecular formula be 86 6. A compound…

A: SOLUTION [5.] : Empirical formula of a compound = C4H10O So, molecular formula of a compound will be…

Q: Calculate how many grams of chlorine gas are in 7.496 x 1023 atoms of chlorine gas.

Q: 2 NH3 + 3 CuO → 3 Cu + N₂ + 3 H₂O In the above equation, how many grams of N₂ can be made when 18.4…

Q: How many grams of Al2(CrO4)3 will contain 5.17 x 1024 oxygen atoms?

Q: 8.6 x 10²³ formula units of NaCl is equal to how many moles H?

A: Applying mole concept and avogadro number.

Q: What is the total number of oxygen atoms on the right-hand side of this chemical equation? 3 ΗNO, (α…

Q: How many molecules are contained in a glass that holds 490 g of water? How many moles does that…

A: Given, water is contained in a glass. and amount of water is =490 gwe are asked to calculate, the…

Q: Given the following equation: Na20 + H20 → 2 N2OH How many moles of NaOH is produced from 5.66 moles…

Q: How many moles are in 9.3 x 1024 molecules of carbon dioxide?

A: 1 mol contains 6.022 × 1023 molecules

Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

MOLES/MOLECULES T04/S04
If a sample of BaBr, is found to contain 2.34 · 10-3 mol of Ba2+ ions how many moles of Br" ions are present? Express your answer in scientific notation.
Molar Mass (g/mol)
ВаBrz
Ba2+ ion
297.14
137.33
х 10
Br ion
79.904
Avogadro's No. (mol"1)
6.022x1023

Expert Solution

Step 1

1 mole of BaBr₂ after 100% dissociation produces 1 mol Ba²⁺ ions and 2 mol Br^-ions

BaBr₂→ Ba²⁺ + 2 Br^-

Number of mole of Br^-ions = 2 Number of mole of Ba²⁺ ions.

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

A weighed sample of iron (Fe) is added to liquid bromine (Br2) and allowed to react completely. The reaction produces a single product, which can be isolated and weighed. The experiment was repeated a number of times with different masses of iron but with the same mass of bromine (see graph below). (a) What mass of Br2 is used when the reaction consumes 2.0 g of Fe? (b) What is the mole ratio of Br2 to Fe in the reaction? (c) What is the empirical formula of the product? (d) Write the balanced chemical equation tor the reaction of iron and bromine. (e) What is the name of the reaction product? (f) Which statement or statements best describe the experiments summarized by the graph? (i) When 1.00 g of Fe is added to the Br2, Fe is the limiting reagent. (ii) When 3.50 g of Fe is added to the Br2, there is an excess of Br2. (iii) When 2.50 g of Fe is added to the Br2, both reactanu are used up compietely. (iv) When 2.00 g of Fe is added to the Br2, 10.8 g of product is formed. The percent yield must therefore be 20.0%.
Consider the following diagram, where atom X is represented by a square and atom Y is represented by a circle. (a) Write the equation for the reaction represented by the diagram. (b) If each circle stands for a mole of Y and each square a mole of X, how many moles of X did one start with? How many moles of Y? (c) Using the same representation described in part (b), how many moles of product are formed? How many moles of X and Y are left unreacted?
The following pictures show a molecular-scale view of a chemical reaction between the compounds AB2 and B2. (A at-oms are shown in blue and B atoms in white). The box on the left represents the box on the right shows what is left once the reaction has gone to completion. Write a balanced chemical equation for this reaction. As usual, your equation should use the smallest possible whole number coefficients for all substances.
A large family of boron-hydrogen compounds has the general formula BxHy. One member of this family contains 88.5% B; the remainder is hydrogen. What is its empirical formula?
itamin B12 , cyancobalamin, is essential for human nutrition. Its molecular formula is C63H88CoN14O14P . A lack of this vita min in the diet can lead to anemia. Cyanocohalamin is the form of the vitamin found in vitamin supplements. l type='a'> What is the molar mass of cyanocobalamin to two decimal places? How many moles of cyanocohalamin molecules are present in 250 mg of cyanocobalamin? What is the mass of 0.60 mole of cyanocobalamin? How many atoms of hydrogen are in 1 .0 mole of cyanocobalamin? What is the mass of 1.0107 molecules of cyanocobalamin? What is the mass (in grams) of one molecule of cyanocobalamin?
Fig. 5-5 illustrates a schematic diagram of a combustion device used to analyze organic compounds. Given that a certain amount of a compound containing carbon, hydrogen, and oxygen is combusted in this device, explain how the data relating to the mass of CO2 produced and the mass of H2O produced can be manipulated to determine the empirical formula.
Calculate the molarity of solutions prepared by dilution or calculate the quantities needed to carry out a dilution to prepare a solution of a specified concentration.
3.105 Nitric acid is often sold and transported as a concentrated 16 M aqueous solution. How many gallons of such a solution would be needed to contain the roughly 2.1109 pounds of HNO3 produced annually in the United States?
The principal component of mothballs is naphthalene, a compound with a molecular mass of about 130 amu, containing only carbon and hydrogen. A 3.000-mg sample of naphthalene burns to give 10.3 mg of CO2. Determine its empirical and molecular formulas.
A sample of a hydrocarbon (a compound consisting of only carbon and hydrogen) contains 2.59 1023 atoms of hydrogen and is 17.3% hydrogen by mass. If the molar mass of the hydrocarbon is between 55 and 65 g/mol, what amount (moles) of compound is present, and what is the mass of the sample?
A dark brown binary compound contains oxygen and ametal. It is 13.38% oxygen by mass. Heating it moderatelydrives off some of the oxygen and gives a red binary compoundthat is 9.334% oxygen by mass. Strong heatingdrives off more oxygen and gives still another binary compound,which is only 7.168% oxygen by mass. (a) Compute the mass of oxygen that is combined with1.000 g of the metal in each of these three oxides. (b) Assume that the empirical formula of the first compoundis MO2 (where M representsthe metal). Givethe empirical formulas of the second and thirdcompounds. (c) Name the metal.