Question 9 What can be inferred if the BOD5 value is high? The concentration of organic pollutants is: A low. B of great concern C) high. (D) negligible.

Q: What are the half-reactions for the reaction of SbCl6 and Ni in the formation of SbC14 and NiCl₂?…

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Q: INCREASING pH of their corresponding solutions. a. CaBr2, NaF, C6H5NH3NO3 b. CH3NH3Cl, LiCH3COO,…

A: As we know , For acidic solution pH is less than 7. For basic solution pH is greater than 7 And for…

Q: A student runs two experiments with a constant-volume "bomb" calorimeter containing 1300. g of water…

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Q: ● At 30.0 °C, Pvapor = 31.8 mmHg ● R = 0.08206 L-atm/mol-K = 62.36 L-torr/mol-K ● MWAl = 26.98 g/mol…

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Q: Which of the following statements is true regarding the iron-phenanthroline method?   I. Any…

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Q: Q102) What is the nuclear binding energy (in MeV) of the cadmium-100 nuclide? The atomic mass of…

A: Given that -  Atomic mass of cadmium-100 = 99.92029 amu  Atomic number of Cd-100 = 48  Then number…

Q: how many grams of NaCl must be added to 2.00mL of water to make a 85.5M solution?

A: Molarity = 85.5 M volume of water = 2.00 mL

Q: Calculate the percentage of ionize and unionized forms present in the following solution. Assume…

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Q: A) Continuing from a pre-deposition of dopants to a substrate with a bulk concentration of 1016/cm³,…

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Q: if the [OH-] is 1.45x10 to the power -10 what is the pH?

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Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

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Q: If the half-life of 100.0 grams of a radioactive isotope is 8 years, how many grams will remain in…

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Q: At a certain temperature, 0.880 mol SO30.880 mol SO3 is placed in a 2.50 L2.50 L container.…

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Q: CH₂ 323 ·CH CECH CH3 I CH₂ CH3 -CH-CC-CH₂-CH-CH- CH3

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Q: Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is…

A: The reaction is ; S2(g) + C(s) = CS2 (g)  Since the concentration of C is very large it can be…

Q: Balance equation between cisplatin and guanine

A: When cis platin react with guanine ,first solvato complex is formed (solvent as ligand )

Q: (Q103) The "goal" of spontaneous decay experienced by unstable nuclides is to: Decrease the number…

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Q: 6a. Some ligands are multifunctional; that is, they have two or more atoms which can bind to the…

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Q: The reaction of 50 mL of N2 gas with 150 mL of H2 gas to form ammonia via the equation:…

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Q: determine the number of grams of iodine gas in a 3.0 L container at 300K and a pressure of 1.5 ATM

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Q: Using any necessary reagents, show how you would accomplish the following syntheses. Pls

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Q: What is the oxidation number of molybdenum in sodium molybdate (Na2MoO4)? (Sodium has an oxidation…

A: Sodium molybdate = Na2MoO4 Sodium(Na) has +1 oxidation number  Let x is the oxidation number of Mo

Q: The reaction of 50 mL of N2 gas with 150 mL of H2 gas to form ammonia via the equation:…

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Q: gram sample of a compound is made up of 35.9 G of aluminum and 64.1 G of sulfur. the empirical…

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Q: Indicate whether the statement below is true or false. When determining an oxidation number, it is…

A: Oxidation state is a hypothetical charge on an atom if all its bond attached to different atoms are…

Q: What volume of a 0.1 m sodium hydroxide could be made with the 200 g of solute

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Q: What is the order of increasing acidity for the following compounds?  (least to most)

A: In this question, we will arranging all the compounds in increasing order of acidity from the least…

Q: maintaing a constant pressure the volume of a gas is increased from 18L to 32L by heating it. if the…

A: new temperature?

Q: Benzene (C6H6; molar mass = 78.11 g/mol) and toluene (C7H8; molar mass = 92.13 g/mol ) form an ideal…

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Q: If a certain mass of an ionic solute is added to a solvent such as water, which of the following…

A: Ionic solids have stronger intermolecular forces , so when a solution is made by dissolving them in…

Q: Guideline 3: we prefer not to add this substituent عا كن يمكن تحط هذا مركي MeO ملم جرا 14 مرا NH₂…

A: To prepare this compound, first of all we will do nitration of benzene ring and then we will do…

Q: if 10.0L of oxygen at STP are heat to 512C what will the new volume of gas if the pressure is also…

A: We have to calculate the new volume of gas.

Q: What is the order of increasing acidity for the following compounds?  (least to most)

A: In compound (I) benzoic acid has the -Cl substituent at para position, in (II) , benzoic acid has no…

Q: proceed? 1. 2CaO(s)→2Ca(s)-Ogg) 2. CO(g)-3H.(g)=CH₂(g) + H₂O(g) 3. Na(g)+31(g) →2NH3(g) 4.…

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Q: A sample of He gas (3.0 L) at 5.6 atm and 25 °C was combined with 4.5 L of Ne gas at 3.6 atm and 25…

A: In this question first to find the total number of mole of gases then using the ideal gas equation…

Q: A dosage descibes the amount of medication administered over a specified period of time with a…

A: 1. Total amount of dosage for 61.0 lb child = 24.5 mg/kg/day x 61.0 lbs x 1 kg/2.2 lbs…

Q: Alcohols can be produced from different materials. Match the substrate with the reaction/pathway for…

A: The given problem is based on the preparation of alcohols from different starting materials.

Q: Which of the following alkenes will most likely predominate during elimination reactions? (A)…

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Q: In the reaction above, calcium hydroxide and hydrogen sulfide react to form calcium sulfide and…

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Q: Calculate the change in pH when 8.00 ml. of 0.100 M HCl(aq) is added to 100.0 mL of a buffer…

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Q: A 8 L sample of gas at 250 K is cooled to 75 K. What is the volume of the gas after it is cooled?

A: Given: The initial volume of the gas = 8 L The initial temperature of the gas = 250 K The final…

Q: Given data for electrolysis of Gd ions: mmol of Gd metal = 25 current: 1.0 Ampere t = 120 minutes…

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Q: How many ml (magnetic quantum number) values can be derived for the outermost electrons in an atom…

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Q: 3AgN03+FeCI3 3AgCI+Fe(NO3)3 25.0g of silver nitrate reacted with 45.0g of iron (lll) chloride. what…

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Q: Calculate [Pb+2(aq)] when the Ecell is 0.980 V at 25.0 oC for the following cell in line notation.…

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Q: HO Q17. When you obtained. You w 10 rated an unknown weak acid solution with NaOH, the curve below s…

A: The identity of weak acid can be determined from their pka values and pka value of acid from plot .

Q: Consider the given phase thermochemical data for compounds A and B. Which of the following…

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Q: Given the thermodynamic information below for ethylene glycol (molar mass = 62.068 g/mol): Normal…

A: Initially at 25.0°C , ethylene glycol is in liquid state . So first step would be heating of liquid…

Q: 7. Use curved arrow notation to indicate how the contributing structures of the following pairs can…

A: The given structures are resonance structures of each other.  While drawing resonance structures ,…

Q: Predict the product of photochemical ring closure of the three given, show the MO involved and…

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