QUESTION 7 _C2H4 +_ 02 = _CO2+ _ H2O - When the above equation is balanced using smallest whole numbers, what is the coefficient of the O2? O A. 5 OB. 2 OC3 OD.4 QUESTION 8 As the number of neutrons in the nucleus of a given atom of an element increases, the atomic number of that element O A decreases OB. remains the same O C. can increase or decrease O D. increases

Q: An unknown element is a mixture of isotopes ¹²⁰X and ¹²²X. The average atomic mass of X is 120.37…

A: 4. Given that,  An element X has two isotopes such as 120X and 122X. Atomic mass of 120X, MX120 =…

Q: In 1961, scientists agreed that the atomic mass unit (amu) would be defined as 1/ 12 the mass of an…

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Q: 2. Nitrogen is made up of two isotopes, N-14 and N-15. Given nitrogen's atomic weight of 14.007,…

A: Given,  Average atomic weight of N = 14.007  Mass of N-14 isotope = 14.003074 g/mole  Mass of N-15…

Q: An unknown element is a mixture of isotopes 120X and 122X.  The average atomic mass is 120.70.  What…

A: Suppose percentage abundance of 122X = A percentage abundance of  120X = (100 - A) Fraction of 122X…

Q: Silicon, which makes up about 25% of Earth's crust by mass, is used widely in the modern electronics…

A: Average atomic mass- Naturally occurring element exists as mixture isotopes. Isotopes are with…

Q: Boron (B; Z=5) has two naturally occurring isotopes. Find the percent abundances of 1°B and 11B…

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Q: On earth, tin has 10 different stable isotopes. The heaviest, 124 Sn makes up 5.80% of naturally…

A: Given: 1)To determine the no.of atoms of 124Sn present in 27.3g of natural sample. 2) To calculate…

Q: Calculate the weighted average of Ressidum. R has three naturally occurring abundances at 20.0%,…

A: Given   The atomic mass for given three isotope is 222.351 amu, 224.610 amu, and 200.841 amu. The…

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A: The mass ratio of calcium and chlorine and the mass of calcium  chloride obtained in four different…

Q: I am working on question 25 of chapter 2 in the chemistry openstax second edition.  The question is…

A: The equation is correct. In the equation x is the fraction of isotope with atomic mass 10.0129 amu…

Q: The mass-to-change ratio for the positive ion F^+ is 1.97 * 10^-7 kg/C. Using the value for 1.602 *…

A: Given information,

Q: 6) the nucleus is a very small region that contains 99.99% off the atoms mass? true or false

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Q: 5. Boron exists as two isotopes, Boron-10 and Boron-11. The average atomic mass for boron on found…

A: Isotopes are the chemical species having same atomic number but different mass number. Isotopes of…

Q: Cesium has 39 known isotopes ranging from mass 112 to 151. If a sample of cesium containing only…

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Q: 29 3. What information cannot be determined from the symbol notation 14Si? O the atomic mass O the…

A: The symbol notation given is

Q: Question 11- Two isotopes of the element Fa occur naturally, with 282145 Fa At 23.4% (281.7 amu) and…

A: The atoms mass is the mass of neutrons and protons of an atom. The weighted average mass method can…

Q: On earth, tin has 10 different stable isotopes. The heaviest, 12Sn makes up 5.80% of naturally…

A:

Q: QUESTION 10 The element boron has twa naturally occuming isotopes with masses of 10.0129 amu and…

A: The atom consists of 3 subatomic particles: Protons: They are positively charged particles present…

Q: An allen element known as Whooplum was discovered in Austin The percent abundance of Whooplum-125…

A: The relative abundance of an isotope of an element is the percentage of atoms of that much atomic…

Q: 29) Which one of these compounds is an ionic compound? B) NO2 A) C6H1206 C) Li,O D) CH3OH E) P4010…

A: 29) Covalent compounds are those in which covalent bond is formed. Covalent bond is formed by mutual…

Q: The natural isotopes of boron have masses 10.0129 and 11.0093 amu, with relative % abundance of 19.9…

A: Given: Mass of one isotope is 10.0129 amu. Mass of second isotope is 11.0093 amu. Relative %…

Q: # How many silver atoms are there in 3.86 g of silver, calculate the number of atoms in each sample…

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Q: An alloy contains 10.8 % titanium by mass and has a density of 13.98 g/cm3. Titanium-49 has an…

A: Number of atoms = 8,926,980,280,926,177,000,000 atoms. Avogadro’s constant = 6.023 × 1023 atoms.…

Q: Heading 1 + BIUA Go D Russo One 30 Element: Ytterbium Number of Number of Neutrons Name of isotope…

A: Fill in the blanks and calculate average atomic mass of given isotope ?

Q: An unknown element X has the following isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant). What…

A: Given :  element X has the isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant).  Since Atomic…

Q: The mass of a single niobium atom is 1.54×10-22grams. How many niobium atoms would there be in a…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: number 9, mass number 18, charge of 1- O p: 9; n: 9; e: 12 Op: 9; n: 9; e: 8 Op: 9; n: 9; e: 9 Op:…

A: Given the atomic number of the species = 9  mass number of the species = 18 charge of the species =…

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: Consider a rectangular piece of printer paper that is 8.5" x 11" (" denotes inches). In order to…

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Q: https://www.bartleby.com/questions-an Chemistry 2 曲 I x² Find the isotopes of 17 17 3- B

A: Isotope is one which have same number of same proton but mass should be different . Proton is equal…

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A: Density of a substance is given by the ratio of mass to its volume. Density = MassVolume Volume of a…

Q: Incomplete Chlorine has two naturally stable isotopes: 35 CI (34.968853 amu) and 37 CI (36.965903…

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Q: 1. Nu OH RAH 2H*, H,0´ RH 2. H*, H,0 RT Nu Nu 00 → R^H Nu

A: This is the nucleophilic addition reaction of aldehyde

Q: With the information given in the table, what would the percent by mass of the reacted sodium…

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Q: Determine the Mass Percentage of each element in the compound Put the first element in the first box…

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Q: 6. The precise mass of a compound was determined by high resolution mass spec to be 84.0575. Using…

A: Given the precise mass of the compound = 84.0575 amu We have to choose the most appropriate formula…

Q: An element has two naturally occurring isotopes. Isotope 1 has a mass of 120.9038 amu and a relative…

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Q: A fictitious element X has a molecular weight of 9.46 g/mol. If the volume occupied by one atom of…

A: Consider the given information is as follows; Molecular weight of element = 9.46 g/mol Volume…

Q: The fictitious element concordium (Cn) has two naturally occurring isotopes: 65C (64.8913 u) and 69C…

A: The solution is as follows :

Q: Q/Choose between parentheses 1-if the density of an element 6 mg/ml with volume 1.8 L, its mass will…

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Q: Calculate the molar mass (M_m) of NaI in grams (calculate 1st the atomic mass, m_at ( you can use…

A: The given compound is NaI (Sodium iodide).

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

A: Average atomic mass = m1f1 + m2f2 + m3f3

Q: 100% Normal text Oxygen 12 ... 3. The atomic masses of elements are generally not whole numbers.…

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Q: The element gallium (Ga) exists in two isotopic forms with the following abundances: 69GA and 39.84%…

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Q: Mass

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Q: Consider a sample that consists of three green spheres and one blue sphere. the green mass is 3.00g…

A: Given : Mass of green spheres = 3g Mass of blue sphere = 1g

Q: Please use the precision of the values in the periodic table link to determine the correct number of…

A: The atomic mass of  He = 4.003 amu The atomic mass of  Fe = 18.998 amu The atomic mass of  Na =…

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.