Consider 100.0 g samples of two different compounds consisting only of chromium and oxygen. One compound contains 61.9 g of chromium and the other has 76.5 g of chromium. Find the ratio: m(Cr)compound 2/m(0) compound 2 m(Cr) compound 1/m(0)compound 1 to show how can these data support the law of multiple proportions if 76.5 is not a multiple of 61.9.

Q: Europium has two naturally occurring isotopes: Eu-151 with a mass of 150.9198 amu and a natural…

A: Given: Atomic mass of Eu-151 = 150.9198 amu Natural abundance of Eu-151 = 47.81% Atomic mass of Eu =…

Q: What are the main ideas in Dalton’s atomic theory? How do they help explain the laws of conservation…

A: Dalton’s atomic theory ideas are as follows All matter is made up of tiny constituents called…

Q: Two elements, R and Q, combine to form two binary compounds. In the first compound, 14.0 g of R…

A: Given: First Compound = 14.0 g R + 3.00 g Q  Second Compound =  7.00 g R + 4.50 g Q = RQ

Q: Do these data provide example(s) of the law of definite proportions, the law of multiple…

A: Law of definite proportion: In any chemical compound the component elements are in fixed ratio by…

Q: Consider a 100.0g samples of two different compounds consisting of only caron and oxygen.One…

A: Mass of both the compounds = 100 g

Q: 2. Which of the following statements is accurate? Explain. "The mass of the student is 56 kg." The…

A: Interpretation -  We have to explain that which statement is correct - "The mass of the student is…

Q: Which of the following pairs of compounds illustrates the law of multiple proportions?   a. Fe, FeO3…

A: In the law of multiple proportions, two elements react with each other to form more than one…

Q: Bronze is an alloy with the following composition: Component Copper Nickel Zinc mass percentage 52.0…

A: Given  Mass percentage of Cu = 52%  Total mass of sample     = 2 gram  mass of copper              =…

Q: Consider 100.0-g samples of two different compounds consisting only of carbon and oxygen. One…

A: According to the law of multiple proportions when two elements react together to form more than one…

Q: Use the Law of Definite Proportions to explain the relationship between NO2 and N2O

A:

Q: Naturally occurring copper exists in two isotopic forms: 63Cu and 65Cu. The atomic mass of copper is…

A: When there is more then one isotope then the molecular weight becomes fractional due to average…

Q: Determine the number of protons and neutrons in each of the following isotopes. 223 Rn 86 Express…

A: We can obtain the number of neutron upon subtracting mass number with number of protons.

Q: What is the relative atomic mass of the element that consists of the following isotopes in the…

A: Given,

Q: The fact that the C atom can form compounds like CH4, C2H5O, H2C=CH2, HC≡CH, etc., demonstrates…

A: To find: The fact that the C atom can form compounds like CH4, C2H5O, H2C=CH2, HC≡CH, etc.,…

Q: A sample of compound X (a clear, colorless, combustible liquid with a noticeable odor) is analyzed…

A: Given information, compound X - 14.13 g carbon and 2.96 g hydrogen compound Y - 19.91 g carbon and…

Q: Imagine an alternate reality. The Thomson cathode ray experiments arrived at a charge to mass ratio,…

A: Here, we have to determine mass of electron.

Q: 2. In the previous example, you added 4 Boron-11 isotopes to 1 Boron-10 to make the average atomic…

A: given, to form a mixture, we added number of boron-11  = 4  number of boron- 10 = 1

Q: In a test of the Law of Multiple proportions, two different compounds composed of elements A and B…

A: For compound X B/A = 2.33/1.00 = 2.33   For compound Y B/A = 5.83/1.00 = 5.83   Divide these two…

Q: When carbon and oxygen react, two different compounds can form dependingon the conditions. Compound…

A: Given observation: When carbon and oxygen react, two compounds are formed. Compound A contains 1.333…

Q: Carbon can react with hydrogen to form several different compounds. Two compounds that contain only…

A: Law of multiple proportions relate the mass number of reactants.

Q: Which answer is an example of the law of multiple proportions? Explain.a. Two different samples of…

A: Law of multiple proportions states that when two elements combine with each other to form more than…

Q: 6. Subatomic Particles. Fill in the blanks in the following (table 1). Show your solution 54.24…

A: Fill the table by using suitable number and symbol---

Q: A hypothetical element X has 2 major isotopes and an average atomic mass of 48.05 amu. Given that…

A: Given, Average atomic mass of X = 48.05 amu Atomic mass of one isotope, I = 49.08 amu Abundance of…

Q: Rubidium has two naturally occurring isotopes, from the following data calculate the value of X?…

A:

Q: If a fictitious element, X, has 2 naturally occurring isotopes; X-44 and X-46.  The atomic mass of…

A: Given: Fictitious element, X, has 2 naturally occurring isotopes; X-44 and X-46.  The atomic mass of…

Q: The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide (SO2). How…

A:

Q: What is the average atomic mass of chlorine if the mass of one isotope is 34.97 amu and has a per…

A: The average atomic mass of an element can be calculated as shown below.

Q: i do know what else to do, that is the question

A: The law of definite composition states that any chemical compound will always contain a fixed ratio…

Q: Two samples of sodium chloride with different masses were decomposed into their constituent…

A: Law of definite proportion :  The law states that a compound has its elements in a fixed ratio…

Q: Which of the following sets illustrates the Law of Multiple Proportions? O a. Li2O, Na2O, K20 O b.…

A: According to the Law of Multiple Proportions, when two same elements form two or more compounds, the…

Q: Which pair could be used to demonstrate the law of multiple proportions?   A. CuCl2 and CuCl   B.…

A:

Q: When carbon and oxygen react, two different compounds can form dependingon the conditions. Compound…

A: The law of multiple proportions is the third postulate of Dalton's atomic theory. Law of multiple…

Q: A sample of compound A (a clear, colorless gas) is analyzed and found to contain 4.27 g carbon and…

A: Given: For compound A Mass of carbon = 4.27 g Mass of oxygen = 5.69 g For compound B Mass of carbon…

Q: The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride…

A: Given : Mass ratio of sodium to fluorine in sodium fluoride = 1.21 : 1  And mass of sodium produced…

Q: Chromium has an atomic mass of 51.9961 u and consists of four isotopes, 50 Cr, 2Cr, 53Cr, and Cr.…

A: The question is based on the concept of elemental abundance. we have to calculate atomic mass of…

Q: 5. Which of the following is a species with 12 protons and 10 electrons? a) Ne?* b) Ti2* c) Mg? d)…

A: Number of proton = atomic number Number of electrons =( atomic number) +- charges

Q: The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide (SO2). How…

A: Here we have to find total number of sulfur atoms present in 15500 tons of SO2 gas . Here we have to…

Q: 107Ag Two naturally occurring isotopes of silver are (relative abundance 52.00%) and 109Ag (relative…

A: Isotopes are those atoms of an element that have same atomic number but different mass number.  Mass…

Q: 5. Law of Multiple Proportions. Two elements, R and Q, combine to form two binary compounds. In the…

A: Law of multiple proportions state, when two elements combine with each other to form more than one…

Q: Calculate the average atomic mass of iron: Isotope: 54Fe; 56Fe; 57Fe; 58Fe Mass (amu): 53.940;…

A: The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by…

Q: 1. The atoms of elements A (blue) and B (orange) form two compounds shown here. Do these compounds…

A: Given diagram is : Atom A is denoted = Blue  Atom B is denoted = Orange  Do these compound obey law…

Q: what is the atomic mass of an unidentified element that has 2 naturally occurring isotopes with the…

A:

Q: Potassium (atomic mass= 39.10 amu) has three isotopes with masses 38.9367 amu, 39.9640amu, and 40.…

A: Given, Atomic Mass of Potassium = 39.10 amu Three isotopes having masses : 38.9367 amu , 39.9640 amu…

Q: Which of the following compounds containing H (mass =1), C (mass =12), and/or O (mass =16) has the…

A: Number of moles = mass/molar mass  Number of moles = number of molecules/avagadro's number  So,…

Q: Two samples of sodium chloride with different masses were decomposed into their constituent…

A: Given: Mass of sodium in sample 1 = 2.91 g. And mass of chlorine in sample 1 = 4.48 g.

Q: Which answer can be used to illustrate the law of multiple proportions?    a, CO2, H2CO3 b, CH4, CO2…

A: To solve this problem we need to know the Law of multiple proportion  and postulate of Dalton Atomic…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.