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

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: The two isotopes of potassium with significant abundance in nature are 39K (isotopic mass 38.9637…

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

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: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Given: Determine average atomic mass and complete the measurement.The average atomic mass, also…

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: 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: 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: 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: Enter your answer in the provided box. Calculate the average atomic mass of chlorine. The…

A:

Q: Isotope Mass (amu) Percent Natural Isotope Calculate average weighted atomic mass Abundance…

A: Average atomic mass of any element is calculated by adding the product of mass of isotope multiplied…

Q: Bromine has two naturally occurring isotopes (Br-79 and Br-81) and has an atomic mass of 79.904 amu.…

A: The given data contains, Atomic mass of Br = 79.904 amu. mass of isotope 81Br = 80.9163…

Q: we determine the average atom + mass of Cl-37 75.78 ) + (36.966 amu 24.22 100 100

A: Average atomic mass =    = M1X1+M2X2/100  M1 and M2 are atomic masses and X1 & X2 are prevent…

Q: 3. Boron (B; Z=5) has two naturally occurring isotopes. Find the percent abundances of ¹0B and ¹1B…

A:

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

A:

Q: Naturally occurring Europium (Eu) consists of two isotopes with a mass of 151amu and 153amu. If the…

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: The relative mass of a compound containing carbon, hydrogen, and oxygen is 180. The mass percentage…

A:

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: 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: There are 1.699 x 1022 atoms in 1.000 g of chlorine.  Assume that chlorine atoms are spheres of…

A: Number of atoms in 1 g chlorine = 1.699 × 1022 atoms Number of atoms in 0.5 g chlorine = 0.5 × 1.699…

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: 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: Two experiments were conducted: 1.2.750 g of copper(II) oxide, CuO₂, was reduced by heating at high…

A: Answer:Two elements always combined in the fixed ratio of their masses to form a compound…

Q: When a 220 g sample composed of ibuprofen (C13H1802) and some inert material is added, the mass of…

A: The mass percentage of an element in a given compound is a measure of the amount of the element…

Q: A fictitious element X has two isotopes with the following masses and % abundances. What is the…

A:

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: Three samples (A, B, and C) of pure substance composed ofsodium, sulfur, and oxygen were isolated…

A: A question based on elemental analysis, which is to be accomplished.

Q: A hypothetical element has only 3 isotopes, with the following masses: Isotope 1:  44.98 u Isotope…

A: Isotopes are the elements which have same atomic number but exhibits different mass number. To…

Q: How many atoms are there in 77.9 g of selenium? You will need to divide your answer by 1.0X10^23

A:

Q: At some point in the future, nuclear chemists have synthesized two stable isotopes of bohrium.…

A: Since average mass of the element is given so we can easily calculate the fraction of each isotope…

Q: Carbon and oxygen form no fewer than five different binary compounds. The mass percentages of carbon…

A: All five compounds are made up of Carbon and Oxygen. As the percentage mass of Carbon of the five…

Q: How many neutrons are in 37.0 ug ( ug= 10^-6 g) of 14 6 C?

A: Given :- mass of 6C14 is 37.0ug  1ug = 10-6 g  To be calculated :-  Total number of neutrons

Q: Bromine has two stable isotopes: 79Br and 81Br with masses of 78.9183371 amu and 80.9162906 amu. If…

A: In this question we have to tell the the Mass of 79Br in 10 gram of Br which has 79.904 amu mass.

Q: Antimony has many uses, including infrared devices and as part of an alloy in lead storage…

A: a) Notation for each isotope antimony 121 ---->   51Sb121   antimony 123 ---->   51Sb123

Q: On another planet, the isotopes of titanium have the given natural abundances. Mass (u) Isotope 46TI…

A:

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.