the mass of OO is approximately 16 gg. What is the whole number multiple that describes the relationship between th

Q: A hydrate is a compound with water molecules incorporated into its crystal structure. In an…

A: The question is based on the concept of analytical chemistry.We need to calculate percentage of…

Q: Almost all boron atoms are found in two forms: boron-10 and boron-11. Both isotopes behave alike…

A: Given, Boron atoms are found in two forms: boron-10 and boron-11 Average mass of B = 10.81 amu

Q: Strontium has 4 isotopes: Sr84 with 0.56% abundance and AMU of 3.9134, Sr86 9.86% abundance with AMU…

A: Let x 1 and x2 be the abundance of Sr87 and Sr88 respectively. Then we have Strontium Isotopes…

Q: Carbon tetrachloride has a chlorine-to-carbon mass ratio of 11.8:1 If a sample of carbon…

A: CCl4 is carbon tetrachloride. Mass ratio of Cl:C is 11.8:1  It means 11.8 g Cl per 1 g C

Q: The atomic masses of 6 Li and 7 Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the…

A: The isotopes of Lithium are Li6  and  Li7 whose atomic masses are 6.0151 amu and 7.0160 amu…

Q: hydrogen phosphide can be decomposed to give phosphorus and hydrogen in a mass ratio of 10.32:1.00.…

A: the molecular formula of this substance is PH3 and the name of this compound will be phosphine.

Q: Gallium has two naturally occurring isotopes with the follow- ing masses and natural abundances:…

A:

Q: Suppose that atomic masses were based on the assignment of a mass of 12.000 g to 1 mol of carbon,…

A: An element is positioned on the basis of atomic number. Each atom will have a fixed and different…

Q: Calculate the molecular mass of the ethanol using the mass of the electrons, protons, and neutrons.…

A: We know that no. of electrons in ethanol =26 No. of protons in ethanol = 26 No. of neutons= 20

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

A:

Q: Silicon has three naturally occurring isotopes (Si-28, Si-29, and Si-30). Masses and natural…

A: From the values given in the table we will first calculate the abundance if Si-30 as shown in the…

Q: A new element, greenriverium (Gr), has three naturally-occurring isotopes. Isotope 1 has a mass of…

A: The atomic mass is the average mass of all the isotopes. So that we calculate the average mass with…

Q: Gallium has two naturally occurring isotopes, 69Ga (isotopic mass = 68.9256 amu, abundance = 60.11%)…

A: Isotopes are atoms of same elements which have same atomic number but different mass number. There…

Q: The atomic masses of 203Tl and 205Tl are 202.972320 and 204.974401 amu, respectively. Calculate the…

A: Let the isotope of Tl203 be x. Let the isotope of Tl205 be (1-x). Set up the equation.…

Q: Calculate the mass for one nitrogen atom. Note: you can choose more than one answer. 2.33 x 10-23…

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

Q: In a naturally occurring sample, 19.8% of boron atoms have five neutrons and 80.2% have six…

A:

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

A: The law of constant composition or law of definite proportions or law of definite composition states…

Q: Naturally occurring silicon consists of three isotopes, 28 Si, 29 Si, and 30 Si, whose atomic masses…

A:

Q: A 3.23 g sample of calcium sulfide was decomposed into its constituent elements producing 1.80 g of…

A:

Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

Q: The three most common isotopes of potassium are 39K, 4⁰0K and 41K. Their natural abundances are…

A: Answer:The average atomic mass of an element is the average mass of the all types of atoms present…

Q: A compound containing only carbon and hydrogen has a carbon-to-hydrogen mass ratio of 11.89. Which…

A: The solution of this question is given below-

Q: Stony meteorites are made up of minerals that contain silicates, which are materials made of silicon…

A:

Q: In an experiment, the reaction of 100.0 g of iodine produced 144.9 g of a compound formed from…

A: It is an example of law of conservation of mass

Q: Suppose that a hypothetical element con- sists of a mixture of two isotopes. One iso- tope, having…

A:

Q: The atomic mass of fluorine is 18.998 amu, and its mass spectrum shows a large peak at this mass.…

A: The isotope of fluorine having a mass of 18.998 amu is highly abundant by a very large amount, which…

Q: A 6.55 g sample of calcium sulfide was decomposed into its constituent elements, producing 3.64 g of…

A: According to the law of constant composition, for any particular chemical compound, all samples of…

Q: An unknown element is determined to have two naturally occurring isotopes. Isotope 1 has a mass of…

A: Average atomic mass of an element having two isotopes is given by the addition of atomic masses of…

Q: A made up element ey has three natural isotopes. The isotopes each have an atomic mass of 33.02…

A:

Q: a)Using the data provided, determine the mass percent of water and the mass percent of anhydrous…

A: Given, mass of hydrated copper (II) sulfate: 131.4g mass of anhydrous copper (II) sulfate: 130.26g…

Q: Natural gallium, which has an atomic weight of 69.7230 amu, consists of gallium-69 and gallium-71…

A:

Q: Consider two compounds. Compound A contains 2.77 g of phosphorus and 9.53 g of chlorine. Compound B…

A: Given,Mass of Phosphorus in compound B =11.9gMass of chlorine in compound B =40.9g

Q: The atomic mass of bromine is 79,904 amu. The atomic mass of the Br-81 isotope is 80.9163 amu and…

A: The atomic mass of bromine is 79.904 amu. This is actually the average atomic mass of Bromine which…

Q: The three isotopes of a naturally occurring mystery element X are 39X, 38.963707 amu; 40X, 39.963999…

A: Isotopemasspercent of natural abundance39X38.963707 amu93.2581 %40X39.963999 amu[100 - (93.2581 +…

Q: An element X exists as two isotopes - 88X and 90X and weigh 87.95 amu and 89.95 amu, respectively.…

A:

Q: The average atomic mass of silicon is 28.0855 u. What percentage of silicon atoms are 29Si? Assume…

A: average weight= f1m1+f²m2+f3m3 F= fraction of natural abundance of isotopes by 100 m= mass of…

Q: The ratio of the mass of O to the mass of N in N2O3 is 12:7. Another binary compound of nitrogen has…

A: The given ratio of mass O to the mass of N in N2O3 is 12:7 Mass of O in N2O3 = 3x16 amu…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.