1) Three isotopes of Silicon occur in nature: Isotopes of Silicon: Silicon-28 Silicon-29 Silicon-30 Atomic Mass: 27.97693 amu 28.97649 amu Percent Abundance: 92.23% 4.68% 3.09% 29.97377 amu Calculate the average atomic mass for the three isotopes of Silicon.

Q: What is the mass of 4.91×10214.91×1021 platinum atoms?

A: For  calculating the mass of substance , we have the governing equation  m=NA×Molecular weight ,…

Q: Magnesium (average atomic mass = 24. 305 amu) consists of three isotopes with masses 23.9850 amu,…

A: Given: average atomic mass = 24. 305 amu three isotopes with masses 23.9850 amu, 24.9858 amu, and…

Q: A sample of element X has two naturally occurring isotopes. The isotope X-45 makes up 35.8% of the…

A: Isotopes are species having same atomic number but different mass number.  Given: The percentage of…

Q: 198 198 Calculate the percent abundance of copper-63 with a mass of 62.93 amu and copper -65 with a…

A: If A1 and A2 are the mass numbers of two isotopes and X1 and X2 are their pecent abundance then…

Q: (b) A certain element has two naturally occurring isotopes. The mass of one of the isotopes is…

A: Given, Mass of One Isotope = 106.905 amu Mass of second isotope = 108.883 amu  % isotope of one…

Q: The element antimony exists in nature as two isotopes: 121Sb has a mass of 120.9038 u and 123Sb has…

A: The average atomic mass of Sb = 121.76 u.Mass of 121Sb = 120.9038 u.Mass of 123Sb = 122.9042 u.Let…

Q: a. 0 b. -2 35. Rubidium has two naturally occurring isotopes, Rb-85 (relative mass 84.9118 amu) with…

A: According to our guideline only one question can be solved. Kindly repost the unanswered question…

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance…

A: The average atomic mass of three isotopes can be calculated using the following expression:

Q: 2.2 Rhenium (Re) occurs naturally in two distinct isotopes, 185 Re and 187 Re, with an average…

A:

Q: The element boron has two stable isotopes: boron-10 (10.0129 amu) and boron-11 (11.0093 amu). The…

A: The term isotopes refer to the atoms of a particular element which have same atomic number or same…

Q: 1. Potassium naturally consists of 93.10% K- 39 and 6.90% K-41. K-39 has an atomic mass of 38.963707…

A:

Q: Magnesium has three naturally occurring isotopes, 24Mg (isotopic mass = 23.9850 amu, abundance =…

A: Given data contains, Isotopic mass of 24Mg is 23.9850 amu. Abundance is 78.99%. Isotopic mass of…

Q: Copper, which has an average atomic mass of 63.546 amu, has two stable isotopes: copper-63 and…

A: Given,Atomic mass of Copper-63 = 63.546 amuAbundance of Copper-63= 69.15%

Q: An unknown element X has the following isotopes: 25X (80.50% abundant, mass = 25.03 amu) and 27X…

A: isotopes of X 25X: abundance - 80.50%                       (P1) = 80.50/100 = 0.8050          mass…

Q: Cerium is the most abundant rare earth metal. Pure cerium ignites when scratched by even by a soft…

A: Isotopes are variations of a single chemical element that varies in the number of neutrons and…

Q: Magnesium has three naturally occurring isotopes, 24Mg (isotopic mass = 23.9850 amu, abundance =…

A: Given data contains, Isotopic mass of 24Mg is 23.9850 amu. Abundance of 24Mg is 78.99%. Isotopic…

Q: Naturally occurring element X exists in three isotopic forms: 28 X (27.979 amu, 92.21% abundance),…

A:

Q: One isotope has a mass of 62.9296 amu (69.17% abundance). The other isotope has a mass of 64.9278…

A:

Q: An unknown element X has the following isotopes: ²⁵X (80.50% abundant, mass = 25.03 amu) and ²⁷X…

A:

Q: 1. Titanium has five common isotopes: 46TI (8.000%, 45.95 amu), 47TI (7.800%, 46.95 amu), 48Tİ…

A: Average atomic mass is the weighted average of atomic masses of all the naturally occurring isotopes…

Q: Suppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 71.123…

A:

Q: Titanium has five common isotopes: 46Ti (8.000%, 45.95 amu), 47 T (7.800%, 46.95 amu), 48Ti (73.40%,…

A: Given 46Ti (8.000%, 45.95 amu), 47 Ti (7.800%, 46.95 amu), 48Ti (73.40%, 47.95 amu), 49Ti (5.500%,…

Q: - Argon has three naturally occurring isotopes: 0.337% 36Ar, 0.063% 38Ar, and 99.60% 4ºAr. Estimate…

A: Given : There are 3 naturally occurring isotopes of Argon i.e Ar.

Q: Consider a hypothetical element, "X". Suppose "X" has two naturally occurring isotopes with the…

A:

Q: 1. Complete the table Isotope Mass (amu) Relative Abundance (%) Silicon- 28 27.97693 92.21 Silicon-…

A: For this problem We have to complete the given table based on abundance of isotopes.

Q: The element boron has two stable isotopes: boron-10 (10.0129 u) and boron-11 (11.0093 u). The…

A: Given : There are only 2 naturally isotopes of boron i.e B-10 and B-11. The average atomic 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: Gallium is a metal which forms compounds with a wide variety of uses. Some of the applications of…

A:

Q: Silver has two naturally occurring isotopes with the following isotopic masses:   106.90509 and…

A: Isotopes: The species having the same atomic number but different mass number is known as Isotopes.…

Q: An element of unknown atomic mass has only two naturally occurring isotopes: 69X (68.935 amu,…

A:

Q: Given the information below please calculate the average atomic mass for the isotopes. 0.12% O-15…

A: The average atomic mass can be calculated using the formula, Average atomic mass=Natural abundance…

Q: A certain element XX has four isotopes. 5.845% of XX has a mass of 53.93961amuamu.…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: An element has three isotopes, A, B, and C. Atomic masses and percent abundances of the three…

A: The concept is to calculate the average atomic mass of an element.The elements having same atomic…

Q: Naturally occurring sulfur consists of four isotopes: 32S (31.9721 amu, 95.04%); 33S (32.9715 amu,…

A: Answer is written and explained below:

Q: The average atomic weight of copper, which has two naturally occurring isotopes, is 63.5. One of the…

A: Given, The average atomic weight of copper  is 63.5. One of the isotopes has an atomic weight of…

Q: An element consists of two isotopes: The first isotope has an atomic mass of 86.905 AMU and a…

A: Given,The first isotope has an atomic mass of 86.905 AMU and a percent abundance of 51.83%. The…

Q: Copper has two naturally occurring isotopes, 63Cu (isotopic mass 62.9396 amu) and 65Cu (isotopic…

A: Given,Mass of 63Cu (isotope I) = 62.9396 amuMass of 65Cu (isotope II) = 64.9278 amuAtomic mass of Cu…

Q: Three isotopes of Rubidium occur in nature: Fractional Isotope Atomic Mass Abundance Ru 85 0.7215…

A: Given :-  Isotope   abundance      atomic mass  Rb-85      0.7215             84.9118 amu Rb-87…

Q: The average atomic mass of hypothetical element 67X (66.9256 amu) and 71X (70.9247 amu) is 68.10…

A: Average atomic mass of an element can be determined as shown below :Avg. mass=mass of isotope 1×its…

Q: mass

A: This question is related to atomic mass.

Q: Antimony has two naturally occuring isotopes, 121Sb and 123Sb. 121Sb has an atomic mass of 120.9038…

A:

Q: Naturally occurring lithium is a mixture of 92.58% Li@7 with a mass of 7.016 amu and 7.42% Li@6 with…

A: Given - Sufficiency  of  Li-7  = 92.58% isotope  with mass =7.016 amu sufficiency  of  Li-6  isotope…

Q: One isotope of an element has a mass of 65.183 amu and 72.23% natural abundance. Another isotope has…

A: Assume an element is X,  one of Isotope of X is X1 atomic mass is 65.183 amu and natural abundance…

Q: 14. isotopes, is 63.5 amu. One of the isotopes has an atomic weight of 62.9 amu and constitutes…

A: Atomic mass is based on a relative scale and the mass of 12C (carbon twelve) is defined as 12 amu.…

Q: . Titanium has five common isotopes: "Ti (8.00%, 45,983 amu), 47TI (7.80%, 46.988 amu), 11 S.4%,…

A: Note: If you do not mention the questions that need to be solved, the answer provider will…

Q: Silver has two naturally occurring isotopes, 107Ag (isotopic mass 106.90509 amu) and 109Ag (isotopic…

A: Assuming the percent abundance of 109Ag isotope is y. Hence the percent abundance of 107Ag isotope…

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

A: The data given about the isotopes of the titanium with the natural abundances: The abundance of…

Q: Suppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 70.387…

A: It is given that there are 2 isotopes of an element with percent abundance and atomic mass as…

Q: How many atoms are contained in a titanium sphere having a diameter of 12.0 mm? The density of…

A:

Q: Copper has two naturally occurring isotopes: 69.17% of Cu-63 (mass 62.93 amu) and 30.83% of Cu-65…

A: Average atomic mass of Cu = [(% abundance of Cu-63 x Mass of Cu-63) +(% abundance of Cu-65 x Mass of…

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.