A made up element ey has three natural isotopes. The isotopes each have an atomic mass of 33.02 amu,33.99 amu and 38.01 amu. The respective abundance of each isotope is 33.0%,45%and 22% calculate the weighted average ey

Q: An unknown element is a mixture of isotopes ¹²⁹X and ¹³²X. The average atomic mass of X is 130.79…

A: The isotope of the unknown element is given as 129X and 132X.  The average atomic mass of X is given…

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: Define weighted average and average in Chemistry and explain the difference between the two.

A: Average is a summation of quantities, divided by the total quantities, to get a single number. For…

Q: Calculate the mass of H2SO4.

A: Mass of H2SO4 is 98.

Q: the mass of OO is approximately 16 gg. What is the whole number multiple that describes the…

A: Given as, Mass of Sulphur in SO = 32 gms Mass of Oxygen in SO = 16 gms Mass of Sulphur in SO2 = 32…

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: 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: he average atomic masses of some elements may vary, depending upon the sources of their ores.…

A: Explanation Solution Two substances, the percentage of each isotope, are unidentified. As both…

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

A:

Q: Copper has two naturally occurring isotopes, 63 Cu(62.9396amu)and 65 Cu(64.9278amu). If copper has…

A: %abundance of cu63= |63.546-64.9278|÷|64.9278-62.9396| So solve it  and  27% Cu63 Same for CU65= 73%…

Q: The element gallium (atomic mass 69.723 amu) has two naturally occurring isotopes, Ga-69 (mass…

A:

Q: 7.53 × 10^23 molecules of an element has a mass of 88.64 g. What is the identity of this molecular…

A: 7.53 × 1023 molecules of an element have a mass of 88.64 g. This molecular element is to be…

Q: Gold (Au) has a density of 19.32 g-cm-3. If a spherical gold nanoparticle has a diameter of 50 nm…

A: Density of Gold nanoparticle is 19.32 g/cm3 and its volume is 7*104 nm3.

Q: You take three compounds, each consisting of two elements (X, Y, and/or Z) and decompose them to…

A: The problem belongs to the simplest ratio of masses.

Q: An unknown element is a mixture of isotopes ¹²⁰X and ¹²²X. The average atomic mass of X is 121.47…

A: For an element that exists as a number of isotopes, its atomic mass is calculated by taking an…

Q: 22 Calculate the mass of 3.0 × 1044 atoms of sulfur. O 1.6 g O 16 g O 160 g O 0.16 g

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: A certain organic compound has the formula C8H12O2. A sample of this compound weighs 1.05 grams.…

A: To determine number of atoms of hydrogen in sample We need to calculate moles of sample present .…

Q: There are only two naturally occurring isotopes of Copper, 63 Cu and 65 Cu. Copper has an atomic…

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: Copper has two naturally occurring isotopes with atomic masses of 62.9296 u (C u) and 64.9278 u…

A: When two atoms have same atomic number and different atomic mass, such atoms are called isotopes.…

Q: 7. Which of the following is the molecular formula of a sample of a compound containing 30.46%…

A: Please find your solution below : Molecular formula of any compound is an expression about the…

Q: Calculate the mass of each sample. a. 1.05 × 10²26 atoms of neon, Ne(g)

A: 1 mole of atom = 6.022 × 1023 atoms

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

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

Q: A hypothetical element exists as two isotopes: I = 85.50 amu and II = 88.70 amu. If the percent…

A:

Q: 6. The element magnesium has three naturally isotopes. Given the following information calculate the…

A: Certain metal in period table have more than 1 isotope with different relative abundance  Here We…

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: ⒸMacmillan Learning On another planet, the isotopes of titanium have the given natural abundances.…

A:

Q: (c) A metal has six naturally occurring isotopes. The isotopes, their fractions, and their atomic…

A: isotopes are elements which have same atomic number but different mass number. Here we are required…

Q: How many carbon atoms are there in a 2.7-carat diamond? Diamonds are a form of pure carbon. (1 carat…

A: 1mole is equal to the number of atoms present in 12 grams of carbon-12.

Q: The element lead consists of four naturally occurring isotopes with atomic masses 203.97302,…

A: we have to calculate the atomic weight of lead from the atomic mass of isotopes and the percentage…

Q: A fictitious element only has two naturally occurring isotopes: X and Y. If isotope X has a mass of…

A:

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

A: Avg.Atomicmass=∑(isotopeMass×Natural Abundance)

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.