A source of 99mTc MDP contains 25.7 mci at 0930. How much activity will the source contain at 1445?

Q: 5. What is the K, for caffeine, CgH₁0N₂O₂ ? The pH of a solution of caffeine is 10.8 and the initial…

A: pH of the solution of caffein = 10.8 Concentration of caffein (C) = 9.7 × 10-4 MKb for caffeine,…

Q: 2 NaN3 (s) - → 2 Na(1) + 3 N2(g) According to its reaction, when 70 g of NaN3 decomposes, how many…

A: Ideal gas equation is PV = nRT Where, P is pressure of the gas V is volume of the gasn is no. of…

Q: Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in…

A:

Q: Please help me with these questions  1. How is the molar concentration of OH- measures in a…

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Q: Question 5 Isomer A CI Which isomer is chiral? Isomer B CH₂CI

A: Given two of the compounds are bridge compounds. One of them isomer is called as a norbornene…

Q: Using just a periodic table (not a table of electronegativities), decide which of these is likely to…

A: Answer:-This question is answered by using the simple concept of polarity of the covalent bond.

Q: Please predict the product for each of the following reactions. Make sure to clearly indicate the…

A: This is acid catalysed ring opening reaction of epoxide. In first step eopxide oxygen will…

Q: provide the IUPAC names for the following compounds and state the function group present

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Q: A certain metal M forms a soluble sulfate salt M₂SO4. Suppose the left half cell of a galvanic cell…

A: Answer:-This question is answered by using the simple concept of calculation of cell potential of…

Q: 5. The above reaction was conducted at different initial concentrations of A and B and each time the…

A: (a) Yes, the reaction rate is dependent on the concentration of A because the rate of reaction has…

Q: In a silver electroplating cell, 1 g of silver is to be deposited from a silver cyanide solution in…

A: Weight of silver = 1gTime = 10 min = 10 × 60 = 600 s (1min = 60 s)

Q: 12.44 Classify each of the following alcohols as primary (1°), secondary (2°), or tertiary (3°):…

A: -> Primary alcohol is alcohol which connects with such carbon which connects with single…

Q: Name and draw the reactant and explain how you got to that name using IUPAC naming rules. B)Draw the…

A: Reactants:Bromine gas and Cyclohexene

Q: Propose an efficient synthesis for the following transformation: o The transformation above can be…

A: This question is answered by using the simple concept of chemical reactions of organic compounds…

Q: When 2-chloropropane treated with NaOH and 1-chloropropane treated with NaOH separately produce two…

A: In this question we have given two organic reaction and we have to write the product and explain the…

Q: Name the following compound. Include the appropriate stereochemistry (R & S). CI All Cl

A: In this question we have given an organic compound and we have to write the name of the compound…

Q: For each of the following, state whether the two structurel formulae show represent constitutional…

A: Constitutional isomers are compounds which have the same molecular formula but different structural…

Q: Is ther an error in the solution that ∆Grxn=−9.33 kJ/mol=9330 J/mol was not kept negative when…

A: Recall the given reaction,                          The standard Gibbs free energy for the above…

Q: In the number 723.4, which digit is estimated? 02 0 3 01 4

A: The given number is = 723.4This number contains a decimal place.

Q: 7. Stillið efnajöfnurnar 1² → I + 103 H₂O + Sb₂O3 + NaIO3 → HSb(OH)6+NaIO NaIO3 + NaHSO3 → I2 +…

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Q: 0.754 mol sample of hydrogen gas at a temperature of 19.0 °C is found to occupy a volume of 25.2…

A: The idea gas equation is,

Q: A mixture of gases has the following composition by mass. 00₂=16.1% 0₂218.310 N₂² 27.28 Naci = 38.4%…

A: Using formulas to calculate mole fractions we can calculate average molar mass.

Q: Ka for acetic acid, CH3COOH, is 1.80 x 10-5. K₁ for nitrous acid, HNO₂, is 4.50 × 10-4. K₁ for…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: As a liquid vaporizes into a gas which of the following occurs?     the temperature increases and…

A: Kinetic molecular theory of the gases : If temperature is given, then Kinetic energy can be…

Q: RedOx Reaction Stoichiometry What mass of solid potassium oxalate (K₂C₂04), when dissolved in an…

A: Redox reaction is a type of chemical reaction that involves transfer of electrons between between…

Q: You will use three corn syrup solutions of 10.0, 20.0 and 30.0% by mass in your Virtual Lab…

A: Suppose we are having 1000 g of solution so mass of glucose  = concentration  *  mass of solution  /…

Q: 1) Write A, B, C for the following reactions u B heat CO₂ OEt 1) NaOEt/EtOH 2) Br aq NaOH 2)H₂0* B

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Q: Naphthalene is a white volatile, solid polycyclic hydrocarbon used in moth balls and repellents.…

A: Hückel rule is used to predict if the compounds are aromaticAccording to this rule, the compounds…

Q: The Lewis Structure of N40, with skeletal structure O-N-N-N-N, contains one N-N single bond, one N-N…

A: Lewis structure describes the distribution of electrons around each atom of the molecule. The…

Q: Which one of the following processes represents an oxidation? ○ 2H*(aq) + CO3²¯(aq) → H₂O(l) +…

A: Oxidation number (or state) is the hypothetical charge developed on an atom when it is separated…

Q: Consider the molecule trans-1-ethyl-2-methylcyclohexane. What can you say about the most stable form…

A: -> For most stable form contains alkyl substituent at equatorial position to reduce 1,3-diaxial…

Q: Complete the mechanisms for the following reactions. Ď A) B) Br Brz MeQH LDA Br Br

A: Any starting material follows different mechanistic pathway on application of different reagents and…

Q: The common laboratory solvent ethanol is often used to purify substances dissolved in it. The vapor…

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Q: CH3 CH3 and CH3 CH3 Н3С CH3 and H3C- CH3 H3C CH3 H3C. CH3 CH3

A: A set of guidelines and protocols known as IUPAC (International Union of Pure and Applied Chemistry)…

Q: Draw the major organic product(s) of the following reaction. + NaOH H₂O • You do not have to…

A: Reactants given: Chlorobenzene  and NaOH in presence of H2O  Chlorobenzene reacts with NaOH under…

Q: The hybridization of the red Nitrogen is is Nitrogen A The geometry of the blue Nitrogen The…

A: Nitrogen (N) in cyanide (CN-) undergoes sp hybridization.Nitrogen is triple-bonded to the carbon…

Q: In standard cell notation, what does the symbol || represent? the separation between the electrode…

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Q: You have a 5M solution of NaCl. You want 100ml of 0.5M solution. What is the initial volume of 5M…

A: Initial solution of NaCl (before dilution)Concentration of the initial solution of NaCl (M1) = 5…

Q: Give the IUPAC name for the following molecule. A) D)…

A: IUPAC nomenclature is a method of naming organic chemical compounds. IUPAC name of the given…

Q: Fe203 + 3 CO → 2 Fe + 3 CO2 If the reaction uses 55.5 liters of CO gas, how many molecules is this?

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Q: How many of the following statements are true about the reaction below? 1 ~ 2 i. The name of the…

A: This an Friedal-Craft acylation reaction: Aromatic substitution reaction.In this reaction to the…

Q: A brain scan uses the radioisotope oxygen-15. The recommended dosage is 50 mCi . A supply of 230 mCi…

A: Recommended dosage = 50 mCisupply of 250mCi correspond to 40ml

Q: CO(g) + H₂O(g) = H₂(g) + CO₂(g) K. = 7.3 @ 823 K - A closed 5.0 L container initially holds 3.0…

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Q: Please do some independent research, to find out how ethanol is cleared from the human body. Find…

A: The reason why a larger dose of ethanol is required as an antidote to methanol poisoning in a…

Q: what is bromates structure with minimized formal charges

A: Answer :---- Bromate ion (BrO3-) has a central bromine atom bonded to three oxygen atoms. Here, in…

Q: Provide the correct IUPAC name for the following compounds and state the function group. Image…

A: It is based on the concept of nomenclature Here we are required to predict the IUPAC name of the…

Q: SO₂(g) + NO₂(g) = SO3(g) + NO(g) 2.0 M 1.0 M 3.0 M 4.0 M The initial concentrations are given below…

A: The question is based on the concept of chemical equilibrium. We need to calculate equilibrium…

Q: What is the pH of a 0.052 M sodium acetate (NaC2H302) solution? (Ka= 1.8x10-5) for C2H4O2 13:58

A: The concentration of sodium acetate is .The Ka for acetic acid is .To find the pH of sodium acetate.

Q: Reaction Kinetics and Asymptotic Behavior Suppose the formation of a product P depends on the single…

A: "Since you have asked a question in which third part requires an external link to visit, as per…

Q: You are presented with a mystery as part of your practical experiment. You have a solution of…

A: Two subpart questions based on concentration terms. First question is about finding the H2SO4…

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.