a chemist adds 250.0 mL of a 0.053 mM sodium nitrate (NaNO, solution to a reaction flask. Calculate the mass in milligrams of sodium nitrate the chemist nas added to the flask. Round your answer to 2 significant digits. Omg

Q: What is the hydronium-ion concentration of a 1.11 x 104 M solution of p-bromobenzoic acid, BrCgH4 CO...

A: concentration of p-bromobenzoic acid =1.11×10-4 MKa = 1.00 ×10-4                           Br-C6H4CO...

Q: Which substance is not a structural isomer of hexyne? O hex-2-yne O hex-3-yne O 3,3-dimethylpent-1-y...

A:

Q: What is the pH of a solution that has an [OH] of 7.3 x 10° M? Write your answer to 2 decimal places.

A: • The values provided in the question are:-     i) Hydroxide ion concentration of a solution, [OH-] ...

Q: The heat of vaporization for 1.0 mole of a substance X at 45.99°C is 50.6 kJ. Calculate ASsurr for t...

A:

Q: What volume of a 0.500 M HCI solution is needed to neutralize each of the following: (a) 20.0 mL of ...

A: We will first write balanced chemical equations for both and then find volume of HCl needed.

Q: When balancing PbO, +Hg→Hg,+ + Pb²+ in acid solution, the correct answer is PbO, + 4H*+2Hg→Pb²+2H,0+...

A: Balanced the given redox reaction under acidic conditions----

Q: 13. Provide a mechanism for the chain radical mechanism, using curved arrow formalism, of the reacti...

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Q: When the skeleton oxidation-reduction equation     MnO4- + Br- ---------> Br2 + Mn2+ is balanced in ...

A: Given, The skeleton oxidation-reduction equation     MnO4- + Br- ---------> Br2 + Mn2+is balanced...

Q: 1) a kcl a Kcl solution has concentra - a tjon of 2 4 ce ppb what of Kcl is contained mass of this s...

A: Concentration of a solution defines the amount of solute present in a given amount of solution. 1 pp...

Q: Question 10 Which sugar will yield a single alditol upon reduction? CH,OH Но H он но н CH2OH A. Sorb...

A: monosaccharides  have either aldehyde or ketonic functionality which are reducible and give alcohol ...

Q: An active (metal) electrode was found to lose mass as the oxidation-reduction reaction was allowed t...

A: In the oxidation - reduction reaction, oxidation occurs at anode and reduction occurs at cathode.  O...

Q: What is the boiling point in C° of a solution of a 2.15 m aqueous solution of glycerol? (Kb = 0.512°...

A:

Q: a. Calculate the molar mass of P2O5. Molar mass = g/mol b. Calculate the molar mass of Ca3 (PO4)2 - ...

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Q: 1.5 m exerts c 2.

A: Given: density of oil ρoil=900kg/m3 width of tank B=3m Diameter of ABd=1m

Q: The following is the proposed mechanism for a given reaction: Step 1: NO + O2 2 NO, (fast, reversibl...

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Q: Kinetic studies of the reaction X + 2Y → W + 2Z yield the following data: Concentration of X (mol) C...

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Q: pose 5.056 grams of an unknown solute are dissolved in 50.0 ams of phenol (C6H50H). The resulting s...

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Q: Question 4 The following statements are true about the structure of amylose, EXCEPT? Hydrolysis of a...

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Q: The pressure of 5.0 L of gas increases from 1140 mmHg to 1240 mmHg. What is the final volume of the ...

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Q: PCl; (g) = PCI; (g) + Cl, (g) @ 500 Kelvin K, = 0.497 In an equilibrium mixture at 500 K, PPC15 = 0....

A:

Q: The concentration of hydroxide ion in an aqueous solution at 25°C is 4.2 x 10 M. What is the concent...

A: Given : Concentration of OH- ion = 4.2 x 10-4 M

Q: The instrument used in the titrations which hold the titrant is called? Select one: a. pipette b. Bu...

A: Generally in titration we take burette and conical flask . Let's discuss where we will take titrant.

Q: In an aqueous solution at 25°C, if [H,O*] = 2.9 × 10 M, then [OH] is:

A: Given :- [H3O+] at 25°C = 2.9 × 10-4 M  To be calculated :- [OH-]   

Q: What B the true percentage of water in Backa 2H2O?

A: the molecular formula of the compound is = BaCl2 . 2H2O The percentage of water is the compound is =...

Q: I. Define the following terms: i. Cleansing and cold cream j. Foundation and vanishing Cream k. N...

A: As per the rules the first three subparts can be answered:  

Q: 60.0 mL of a 0.800M NaCl solution is mixed with 80.0 mL of a 0.500M KBr solution. What is the new co...

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Q: At a certain temperature the vapor pressure of pure acetyl bromide (CH,COBR) is measured to be 410. ...

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Q: After decarboxylation of propanoic acid forms: Select one: a. Ethene b. Ethane C. Methane d. Propane

A: Given: Decarboxylation of propanoic acid.  

Q: NBS RO-OR 1) ВНя, THF 2) NaOH/ROOR HOBGMO sexerloloyalyitemint-S.t Jserl H3O*(aq) O 8T-O

A:

Q: A voltaic electrochemical cell is constructed using the following reaction. The half-cell components...

A: The cell compartment in which the chemical reactions occur at the corresponding half cells to produc...

Q: QS. Provide a reasonable curved arrow mechanism for each of the following A. AICI,

A:

Q: The pH of a 0.0058 M solution of HNO, is

A: Hydrogen ion concentration is an important parameter of an aqueous solution. The concentration of th...

Q: Q6. Provide a step-wise synthesis for the following compound using benzene as a starting material. B...

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Q: A solution is formed by adding 3.60 grams of solid barium cyanide, Ba(CN)₂, to 250.0 ml of 0.170M so...

A: To calculate the pH of the solution , we would first Calculate total concentration of CN- from both ...

Q: The ratio of an observed measurement of colligative property for a solute in a solution to the value...

A: The solute and their properties are discuss in the coligative properties , in which amoubt of solute...

Q: A sample of an unknown sulfate compound has a mass of 0.100g. Addition of excess barium chloride sol...

A: Given data: Mass of the sample = 0.100 g Mass of barium sulfate = 0.0676 g 

Q: Why is the least stable carbanion the bottom middle carbanion? Why wouldn't it be the left secondary...

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Q: What is the Normality of a solution made by dissolving 8.5g of H2SO4 in enough water to make 500. mL...

A: A question based on concentration terms that is to be accomplished.

Q: a An isotope of element A contains the same number of neutrons as are found in an atom of $V. The is...

A: Given,  An isotope of element A contains the same number of neutrons as are found in an atom of 51V ...

Q: Calculate the molar solubility of yttrium iodate in a 0.0500M solution of magnesium iodate, Mg(IO3)2...

A:

Q: 9. The four compounds listed below undergo SN1 reactions at increasingly faster rates. For each comp...

A: SN1 is a nucleophilic substitution reaction. In this reaction formation of intermediate (carbocation...

Q: Convert kPa/sec to uL/min for the following values. -0.0019 kPa/sec -0.0029 kPa/sec -0.0028 kPa/s...

A: Convert kPa/sec to uL/min for the following values.

Q: H

A:

Q: Given the reaction: NO2(g) NO(g) + O2(g) (H = +62 Kj), if the temperature is increased, the formati...

A: Given ;- NO2(g) <-----> NO(g) + O2(g)  H = +62 kJ  statement : if the temperature is increased...

Q: Calculate the percent composition of the product you made. Hint: You must know the identity and. mas...

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Q: Write the equilibrium constant expression for this reaction: 2H (aq)+so, (aq) H,SO,(aq)

A: • The given reaction is,       2 H+(aq) + SO42-(aq) → H2SO4(aq)      • We need to write the equilibr...

Q: silver nitrate + copper + silver + copper nitrate How many electrons does each silver ion gain?

A: Given reaction : silver nitrate + copper → silver + copper nitrate Silver nitrate = AgNO3 Copper = C...

Q: moles

A:

Q: Part A Use bond enthalpies in the table below to estimate AH for each of the following reactions, Av...

A:    

Q: concentration:

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.