Thallium-201 is a radioisotope used in brain scans. If the recommended dose is 3.0 mCimCi and a vial contains 70. mCimCi in 50. mLmL , how many milliliters should be injected?

Q: Suppose you measure out 5.00 x 1022 atoms of aluminum in the form of a solid nugget on the balance.…

A: The formula for the conversion from atoms to moles is : => moles = number of atoms given / 6.022…

Q: Nuclei differ in their stability, and some are so unstable thatthey undergo radioactive decay. The…

A: Hey since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: What is the mass in grams of 3.61 x10^23 atoms of copper?     How many copper atoms are there in…

A: The atomic mass of an element is used to determine the number of moles of an element. One mole of…

Q: If 2.3 moles of NO2 (g) are produced per minute in a reaction, how many grams of it would be…

A: Molecular weight of NO2 =    =(14 + 2× 16)g/mol = 46 g/mol Weight = Number of mols × molecular…

Q: ** Directions Match the items in column A with those in column B. Write the letter of each correct…

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Q: 106. Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm,…

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Q: Performing the same experiment described on your lab manual, a student used a 0.400 g sample of…

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Q: What mass of Cu(NO 3) 2 can be prepared from the reaction of 1.75 grams of copper with 5.00 grams of…

A: Given Data :

Q: A sample of iron weighing 15.0 g was heated with potassium chlorate (KCIO3) in an evacuated…

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Q: Seawater contains 2.80 x 10-8% (by mass) of carbon. How many grams of carbon are there in 3.52 L of…

A: We have to calculate the mass of carbon.

Q: 2. OH Cl₂ AIC13 310

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Q: Naturally occurring cobalt consists of only one isotope, 58.9332. A synthetic radioactive isotope of…

A: From given data;  Initially % of 60Co is determined and then weight of 60Co is calculated as…

Q: How many grams does 1.44 x 1028 carbon atoms weigh?

A: To calculate the mass in grams for the atoms  First we have to convert the number of Atoms into…

Q: An object is put into a graduated cylinder with 50.0 mL of water.  The two together take up a volume…

A: We need to calculate the density using the given data and then compare it with given density of all…

Q: What is the isotope that is used in carbon dating? What is its half-life?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Balance the combustion of C12H22O11

A: The molecule given is C12H22O11  Hence in combustion of C12H22O11 , the compound C12H22O11 will…

Q: A chemist prepares a solution of mercury(II) lodide (Hgl,) by measuring out 0.00033 umol of…

A: Given :-  No. of moles of HgI2 = 0.00033 umol  Volume of solution = 150. mL  To calculate :…

Q: If 33.3 grams of hydrogen gas were mixed with 45.55 grams of nitrogen gas, then how many grams of…

A: Nitrogen gas reacts with hydrogen gas to form ammonia. The equation for the balanced chemical…

Q: How many milligrams of a 18-mg sample of calcium-47 remain after 45 days? Express your answer using…

A: The decay of a radioactive substance can be modeled by the equation:where:N(t) is the quantity of…

Q: Fill in the information missing from this table. nuclide protons neutrons Z A 0 67 98 0 0 0 0 0 0 0…

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Q: 235U + 'n93Kr + 140BA + 3 'n Consider the substances in the reaction: Uranium-235, Krypton-93, and…

A: •Any element can be represent as :-                         A                            A → mass…

Q: How many protons are in 2.08 x 10-21 g of F?

A: Atomic weight of F = 19 Given is Mass of F= 2.08 x 10-21 g Number of moles= given mass/ molar mass…

Q: 2. Determine the number of protons contained in particle of protons having a mass of 5.019 x 10*…

A: Interpretation-  To determine the number of proton contained in the particle of proton having mass…

Q: Elements Reactants 1 Reactants 2 Nuclear Reaction Deuterium Tritium Helium (Stable) Lithium

A: Nuclear reactions are those in which fusion and fission process are involved. In these reaction…

Q: What is the average atomic mass of halfnium if, out of every 100 atoms, 5 have mass 176.0, 19 have…

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Q: There are two isotopes of an unknown element, X-19 and X-21. The abundance of X-19 is 14.63%. Now…

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Q: Elements Reactants 1 Reactants 2 Nuclear Reaction Deuterium Tritium Helium (Stable) Lithium

A: Nuclear reaction are those in which nuclear fission and fusion process is involved. In these…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.