The half life of a certain substance is 5.6 days. How long will it take for 100 g of the substance to decay to 3.125 g?

Q: MOLECULAR GEOMETRY AND POLARITY OF Brcl3

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Q: The solubility product constant for MX2 is 7.48E-3. What is the molar solubility of MX2? (the answer…

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Q: conjugate acid conjugate base K K.

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Q: MOLECULAR GEOMETRY AND POLARITY OF ONF WITH N AS CENTRAL ATOM

A: To determine molecular geometry of ONF , we would use valance electrons of all atoms and make…

Q: Calculate the percent dissociation of trimethylacetic acid (C,H,CO,H) in a 0.15 mM aqueous solution…

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Q: Determine the pl for this synthesized pentapeptide: A-B-C-D-E Given that the pK values for the amino…

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Q: An aqueous solution contains 0.30 M ammonium bromide. One liter of this solution could be converted…

A: Given-> Molarity of NH4Br = 0.30 M Volume = 1 L

Q: Calculate the temperature at which the wavelength of a neutron is 1.36 Å. 4.0 K

A: The answer is given below

Q: If the solubility of a drug is 3.8 g/L and in chloroform 224.9 g/L calculate its partition…

A: Solubility of drug in water = 3.8 g/L Solubility of drug in chloroform = 224.9 g/L

Q: Ammonia, NH,, reacts with oxygen to form nitrogen gas and water. 4 NH, (aq) + 30,(g) → 2 N,(g) + 6…

A: Given-> Weight of NH3 = 3.25 gm Weight of O2 = 4.88 gm Volume of N2 = 0.850 L T = 295 K P = 1.0…

Q: Part B Calculate the entropy of each of the following states. (Figure 1) State (b). S = 0 J/K Submit…

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Q: A salt made up of a cation with a +3 charge and the chloride ion. In a saturated solution of the…

A: Given:: Cation (Let A)= +3 charge [Anion] = [Cl-] = 0.0787 M Ksp= ?

Q: How many grams of calcium nitrate can be produced by reacting excess nitric acid ((HNO3) with 7.65 g…

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Q: 35 mol of zinc react with silver nitrate, how many moles of silver will form?

A: Moles Of Zn = 35 mole

Q: Calculate the AS° in J mol K-1 of the following reaction from the values in the table. 3 Fe(s) + 2…

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Q: solution is 10-2 M in Cr2O72- and 10-3 M in Cr3+. If the pH is 4.0, what is the potential of the…

A: Given that

Q: Use the experimental value of the coefficient of viscosity for argon ( n= 2.10 x 10* kg ms) to…

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Q: Which of the following mixtures has the highest buffering capacity? OA0.90 M HPO42-/0.90 M PO43- OB.…

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Q: Provide the structure of the product(s) with stereochemisty if appropriate. If multiple products…

A: GIVEN:-

Q: Use of concentrated NAOH (lye or caustic soda) in soap preparation can produce a very basic product.…

A: Saponification : It is the process where salt of fatty acid is treated with base (generally NaOH )…

Q: a) What is the wavelength in nanometres of light emitted by the helium ion (He2+) when it captures…

A: Answer: This question is based on Bohr's modal where we have to calculate the value of energy of…

Q: Which of the following statements is/are true about the equivalence point of a strong acid…

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Q: If zinc is less reactive than magnesium chloride, what is the equation that occurs when zinc is…

A: Given :-  Zn is less reactive than MgCl2  To determine:-  Equation of Zn with MgCl2

Q: Questions 1. Electrical current is carried by a flow of charged particles, which often occurs…

A: Electric current is carried by charged particles.Free eelectrons can carry charge

Q: lasswork for 5 Che x E Water and Solutions x = Roland Morris - %By x…

A: 1. The higher the pull for electrons the stronger the oxidizing agent. So the element with the…

Q: Which of the following processes has a AS > 0? O A. lithium fluoride forms from its elements in…

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Q: molecular weight of poly vinyl chloride

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Q: Nitric oxide, an important pollutant in air, is formed from the elements nitrogen and oxygen at high…

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Q: Mg + O2 --> MgO NazCO3 --------> Na2O + CO2 C3H8 + O2 ------- CO2 + H2O Al + O2 ------> Al2O3 BaCl2…

A: The answers are given below

Q: Question 19 The solubility product constant for MX2 is 7.48E-3. What is the molar solubility of MX2?…

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Q: estion 22 A solution is made by combining 46.5 mL of a 0.83 M HNO2 solution and 46.5 mL of a 0.62 M…

A: Volume of HNO2 = 46.5 ml Molarity of HNO2= 0.83 M Volume of NaNO2 = 46.5 ml Molarity of NaNO2 = 0.62…

Q: 5:19 - EVALUATE THIS STATEMENT: Pure water, on its own, does not conduct electricity* O True False

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

Q: Two students are given the starting material benzoic acid and are asked to prepare benzaldehyde. The…

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Q: What is the pH of a 0.0306 M formate (CHO2-) solution at 25 °C (Ka for HCHO2 = 1.8 × 10-4)? (the…

A: Given data: Concentration= 0.0306M  Ka = 1.8 * 10-4 Temperature = 298K

Q: Look at the molecule depicted below, several atoms need more or less electrons to complete its…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: What is the molar concentration of Na+ ions in 0.0350 M solutions of the following sodium salts in…

A: Given :molar concentration of Na2SO4 solution = 0.0350 M  To calculate :- molar concentration of Na+…

Q: View Policies Show Attempt History Current Attempt in Progress 3D - Your answer is partially…

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Q: arrows are used to illustrate the flow of electrons. Follow the arrows to predict the product of…

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Q: A beaker contains 100 mL of a 2.06 M HCIO, 2.06 M CIO" buffer solution. Then, 27.2 mL of a 1.0 M…

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Q: a) What is the wavelength in nanometres of light emitted by the helium ion (He2+) when it captures…

A: The answer is given as follows

Q: 4. Propose an arrow-pushing mechanism for the following reaction: OH HBr Br CH;OH + H,0

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Q: Select which of these values is the correct osmotic pressure that a solution of 0.15 mmol/L NaCl…

A: Osmotic pressure: Osmotic pressure is the minimum pressure which needs to be applied to a solution…

Q: Calculate the amount of energy required to heat 357 g of ethylene glycol (antifreeze) from 0°C to…

A: Given, Mass of ethylene glycol (m) = 357 g Initial temperature (Ti) = 0°C Final temperature (Tf) =…

Q: Determine the Ka and pKa for an aqueous solution containing 0.19M of a weak, monoprotic acid, HA,…

A: pH = -log[H3O+]  log[H3O+]  = -pH  So, [H3O+]  = 10-pH  Ka is the ratio of  product of concentration…

Q: 2. Consider the reaction of CeHe + Br2 → C6HsBr + HBr a. What is the theoretical yield of C6H5B if…

A: Given-> Weight of C6H6= 42.1 gm Weight of Br2 = 73.0 gm Actual yield of C6H5Br = 63.6 gm

Q: H. c=c=c_ Br Br c=c=c= H Br and B CI and ČI ČI and

A: Enantiomer is one of the stereoisomer that at non superposable mirror image... 8 carbon containing…

Q: What is the name of the binary molecular compound N5O8? Enter the name in all lowercase letters with…

A: The name of the binary molecules are

Q: electron reorganization.

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Q: Identify each substance as Lewis acid, Lewis bašê, böth, or helther. A. Both Cu2+ B. Lewis base E OH…

A: The solution is shown below

Q: Provide the structure of the product(s) with stereochemisty if appropriate. If multiple products…

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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.