Rb+

Q: ONCI (N is the central atom): All formal charges can be minimized to zero. The molecule ...

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Q: Which of the following represents the change in electron configuration that is associated with the f...

A: Electron configuration is the distribution of electrons in the orbital of an atom.

Q: using LCAO-MO theory what is bond order of C2 3 0.5 0 -0.5 1 or 2

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Q: A 5.1-gram piece of gold jewelry is removed from water at 100.0°C and placed in a coffee-cup calorim...

A: the purity of the jewelry can be estimated by comparing the specific value of gold experimentally an...

Q: A mixture of 2.5 moles of Na and 1.8 moles of Cl2 reacts to make NaCl. How much sodium chloride is m...

A: Number of moles of Na = 2.5 moles Number of moles of Cl2 = 1.8 moles

Q: %24 8. 7. 9 5 4 V 2 %23 (a) jou (a) How many moles of helium are contained in each volume at STP: (a...

A: Given that -  Volume of helium gas , at STP = 6.4 L (a)  Volume of helium gas, at STP = 58.2 L (b)  ...

Q: %24 4+ # m w/ If someone takes a breath and the lungs expand from 4.5 L to 5.4 L in volume, and the ...

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Q: Europium has two naturally occurring isotopes: Eu-151 with a mass of 150.9198 amu and a natural abun...

A: Given: Atomic mass of Eu-151 = 150.9198 amu Natural abundance of Eu-151 = 47.81% Atomic mass of Eu =...

Q: How many moles of oxygen (O2) are contained in a 7.7 L cylinder that has a pressure of 124 atm and a...

A: Given data is as follows: The volume of the cylinder = 7.7 L The pressure of the cylinder = 124 atm ...

Q: 5) Calculate the enthalpy of the following chemical reaction: Cs.() + 30:(g) - CO.(g) + 2SO(g) Given...

A: Calculate the enthalpy of the following reaction :  CS2(L) + 3O2(g) ---> CO2(g) + 2SO2(g)  Given ...

Q: According to the balanced reaction below, calculate the quantity of moles of NH, gas that form when ...

A: Moles of NH3 can be find by comparing moles of N2H4.       Mass of glucose can be find by using mole...

Q: draw reaction mechanism of cyclohexanone being reduced by sodium borohydride to form cyclohexanol.

A: Ketones on reduction with sodium borohydride give alcohols. Hence Cyclohexanone on reduction with so...

Q: Write a balanced chemical equation based on the following description: aqueous iridium(III) bromide ...

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Q: Suppose a piece of iron with a mass of 21.5 g at a temp of 100.0 °C is dropped into an insulated con...

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Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When ...

A: Calorimeter is operated on the concept  of Q=m*C*DeltaT  where Delta T is the change in Temperature....

Q: What is the corrected concentration when 875 μL of 3M NaOH is added to a concentration of 8.8μM at p...

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Q: 4. A sample of rainwater was determined to have a pH of 6.35. What were the H concentrations of the ...

A: Given;

Q: rences) A few hydrogen and oxygen molecules are introduced into a container in the quantities depict...

A: The hydrogen (H2) and oxygen (O2) molecules in a container is shown below :

Q: Write the Structure Activity Relationship (SAR) of Nifedipine? Please answer at your own words

A: Nifedipine Used as Calcium channel blocker that used to manage angina ,high blood pressure.

Q: According to the balanced reaction below, calculate the quantity of moles of NO, gas that forms when...

A: Given, the chemical reaction as follows,2N2O4(g)→4NO2(g)+O2(g)Number of moles for reaction =5.20×10-...

Q: When the nuclide thorium-234 undergoes beta decay: The name of the product nuclide is fill in the b...

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Q: Consider a neutralization consisting of 0.2 mol of NaOH and 0.1 mol of H2SO4.  Calculate the entha...

A: The neutralization reaction between NaOH and H2SO4 is :  2NaOH + H2SO4 = Na2SO4 + H2O  One NaOH give...

Q: What is the molar mass of thyroxine if 0.455g of thyroxine is dissolved in 10g of benzene (C6H6), th...

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Q: Practical aspects of radical halogenation Radical halogenation of ethane is a major industrial proce...

A: Direct fluorination of alkanes is highly exothermic, explosive and invariably leads to polyfluorinat...

Q: What is the molarity of the solution prepared by concentrating, by evaporation of solvent, 2212 mL o...

A: * Answer : Molarity of prepared Solution is  1.036 M .

Q: The bronze medals at the Tokyo 2020 Olympics were made from Red Brass. The percent composition of th...

A: Amount of component =total mass ×  % of composition 

Q: The dissolution of NH,Cl in water is an endothermic process. If the initial temperature of water is ...

A: Endothermic reaction is reaction in which energy/heat is consume in reaction.

Q: urgent please in one hour Which of the following gases can be used in GC?     H2     N2     O...

A: In GC the less reactive almost inert gases are used. N2 and H2 are less reactive i.e. almost inert h...

Q: Calculate the mass percent of a sucrose solution that is made by mixing 9.57 grams of sucrose into w...

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Q: Twenty grams of O2 occupied 3L container held at 5 atm. Calculate the temperature of the system usin...

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Q: An organic acid is composed of carbon (58.806), hydrogen (9.89%), and oxygen (31.33%). Its molecular...

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements presen...

Q: Write the Structure Activity Relationship (SAR) of Progestins?  Please answer at your own words

A: Progestins are synthetic or semisynthetic progestogens. This progestogen produces effects similar to...

Q: What are the two lowest microwave transitions observed for the rotation of Cl, and HBr? You will nee...

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Q: When the nuclide radium-226 undergoes alpha decay: The name of the product nuclide is fill in the b...

A: • The alpha particles are 2He4   • When a nucleus emits an alpha particle, the mass number decreases...

Q: What is the nuclear binding energy per nucleon of potassium-40? Particle Mass (amu) K-40 39....

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Q: Given the following data: Tinitial (°C) Tfinal (°C) H20 50.00 mL 22.46 18.32 NazS,03-5H205.10 g Calc...

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Q: what is the mechanism UV lamp solvent, r.t., time H-N air 1a 2a За

A: In presence of UV - lamp, 2a acts as nucleophile and carry out nucleophilic addition to carbonyl com...

Q: You are instructed to prepare 250 mL of a solution that is 2.5 M NaOH. You have available a stock so...

A: Given that:  Molarity of stock NaOH(M1) = 15.5M  Molarity of final NaOH solution(M2) = 2.5M Volume (...

Q: Use formal charges to select which of these Lewis structures is the best for CCLOF. A В C :0: :ö: D ...

A: The structure having zero formal charges is the best structure.

Q: Europium has two naturally occurring isotopes: Eu-151 with a mass of 150.9198 amu and a natural abun...

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Q: How many grams of NaCl are present in 50.0 mL of a 7.50%(m/v) NaCl solution?

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Q: Let's do it this way: A. On the space provided, put a checkmark (V) on the convection process being ...

A: 1.Boiling water is both conduction and convection. Heat from the heat source is transferred to the w...

Q: The complete combustion of glucose (C6H12O6) in oxygen (O2) yields water and CO2. Write the balanced...

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Q: Solve and show solution 1. What is the pH and pOH of a solution prepared by dissolving 10 g of Ba (O...

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Q: Calculate the formula weight and molar mass of Al,(SO4)3 (aluminum sulfate), once used as a common a...

A: The molecular formula of aluminum sulfate is = Al2(SO4)3 The formula mass of Al2(SO4)3 is =? The mol...

Q: Write a balanced chemical equation based on the following description: aqueous iron(III) chloride re...

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Q: What is the heat in kj required to convert 25g of -10 °C ice to 150°C steam?

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Q: Use the octet rule and formal charges to select the best Lewis structure for HCP. A H-PEC в H -CE P-...

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Q: A sample of gas mixture from a neon sign contains 3.48 x 10-4 mol Ne and 1.12 x 10- mol Kr. What are...

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Q: An organic acid is composed of carbon (58.80%), hydrogen (9.89%), and oxygen (31.33%). Its molecular...

A:   Empirical formula : Simplest whole number ratio of atoms present in a compound is called " empiric...