Write a brief explanation about importance of measurements in chemistry.

Q: Aqueous sulfuric acid (H, SO,) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium s...

A: Balanced chemical reaction is  H2SO4 + 2 NaOH = Na2SO4 + H2O Here 1 mol of H2SO4 reacts with 2 mols ...

Q: nd 16.5 g of sodium hydroxide?

A: The balanced chemical reaction,  NaOH + HCl ----> NaCl + H2O Molar mass of NaOH = 40 g/mol Molar ...

Q: List ALL the significant peaks in the IR spectrum of each molecule below by showing which functional...

A:

Q: Provide a name for each compound. Include relative stereochemistry where appropriate. Br Br Br

A:

Q: A compound gives a mass spectrum with peaks at mize 77 (40%), 112 (100%), 114 (33%), and essentially...

A: A compound gives a mass spectrum with peaks at m/z = 77 (40%), 112 (100%), 114 (33%), and essentiall...

Q: How many grams of PbBr2 will precipitate when excess NaBr solution is added to 72.0 ml of 0.791 M Pb...

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Q: What mass of Ba(NO3)2 (261.34 g/mol) is needed to convert 2.33 g of NaIO3 (197.89 g/mol) to Ba(IO3)2...

A: Barium nitrate react with sodium iodate and produced Ba(IO3)2

Q: Identify the reagents necessary to accomplish each of the following transformations. Br. Br O2N Choo...

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Q: 17. Calculate the molar concentration of isopropanol in an aqueous solution that contains 3.00 g of ...

A:

Q: Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South ...

A: Answer: Depression in freezing point is a colligative property. Higher the number of particles of no...

Q: I don't understand this problem! Please help! The question is: In the following balanced chemical re...

A: The chemical equation represents the possible reactants that combine to yield the products. In this ...

Q: Question: You added 8 drops of Alizarin Yellow indicato and your solution appears yellow and transpa...

A: Alizarin, also known as 1,2-dihydroxyanthraquinone (C14H8O4), is a natural dye that, as an anthraqui...

Q: Nitrogen and oxygen react to produce nitric oxide according to the following equation: N2 (g) + O2 ...

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Q: Consider the following proposed mechanism for the reaction: 2 NO2Cl (g) → 2 NO2 (g) + Cl2 (g) ...

A: For these two reactions steps i.e. one is fast and the other is slow. The rate will be dependent on ...

Q: What is the pH of a 0.100 M solution of LiBrO(aq) at 25'C? Assume that LiBrO is a strong electrolyte...

A: Since you have posted multiple questions, we are entitled to answer the first only. Given: Concentra...

Q: How many moles of Li are in 1.46 x 1015 atoms of Li? 4.12 x 10-8 mol 4.12 x 108 mol 2.40 x 10° mol 4...

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Q: Make an introduction about Precision and Accuracy. Cite your references

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Q: What is the concentration bog a solution made with 0.185 moles of KOH in 400.0 mL of solution?

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Q: Which of the following elements is NOT a metal? A) arsenic B) indium C) iridium D) lithium E) luteti...

A: Arsenic is a metalloid and we can say it a metal.

Q: Why should we do a standardization every time we do a titration?

A:  Standard solution is one of which we know the concentration . The necessity of standardization ever...

Q: 7. За. 10 L%3D 8.6000 ml = ml ml

A: Given : We have to convert L to mL, ml to L and L to ml

Q: A 2-ml seawater sample was diluted to 100 mL with distilled water. A 16-ml aliquot of the diluted sa...

A: Given: Volume of sample used = 2 mL. Initial sample is diluted to 100 mL. And Mohr method is used.  

Q: What is the molarity of K+ in a solution that contains 89.72 ppm of K3Fe(CN)6 (329.3 g/mol)?

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Q: hca Schoolzone Staffzone Employee NorQuest Library MyQuest MyMail Contact Navigator Student Moodle H...

A:  Atom  is the smallest unit of matter which has the properties of a chemical element. It can not be ...

Q: Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 ∘C, ...

A: Raoult's law: Raoult's law states that the vapor pressure solvent in a solution is equal to the prod...

Q: Measuring the proportional response of an analyte to things such as light or an electric current is ...

A: Option A is correct answer.  

Q: What is the relationship between the strength of an acid/base and its conjugate? A directly proporti...

A: The solution is given below - 

Q: 41. What is the molar solubility of Ag2SO4 in a solution that is 0.0522 M H2SO4? Ksp= 1.40x10^-5

A:

Q: 2. Based on the MolView activity, which compound has the most covalent bonds? A. Water B. Hydrogen...

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Q: Which statement is false regarding labels on chemical containers? a. labels tell the embalmer how t...

A: Label is an indicative of hazardous behaviour and precurtions need to be employed during use.

Q: An unidentified ionic compound contains approximately 29.85 g sodium, 67.50 g chromium, and 72.67 g ...

A:

Q: Part 2: Non-Mass-Ma 5. Ammonia is made by reacting nitrogen and hydrogen according to the following ...

A: ****please note as you didn't ask for particular que number in solving first question for you**   Ba...

Q: How many moles of sugar was added to 82.90 g of ethanol to change the freezing point of ethanol by 2...

A: Given : Mass of ethanol = 82.90g

Q: How many atoms are in 25.6 g tin? 3.01 x 1023 atoms 3.01 x 1024 atoms 6.02 x 1024 atoms 1.30 x 1023 ...

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Q: Use the given: I. 0.02 m of glucose, II. 0.03 m of FeCl 3,  III. 0.02 m of NaCl, IV. 0.03 m of MgCl ...

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Q: Draw the prödücts öf LIN(iPr)2 MeO THE -78°C a) label the E/Z geometry of the two products. b) draw ...

A: Since you have asked a question with multiple sub-parts, we will solve first three sub-parts for you...

Q: In order to form Ba(1O3)2, 500 mL of 0.5000 M Ba(NO3), was mixed with 500 mL of 0.0500 M NalO3. • Ho...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: A sealed container with a volume of 63.8 mL is filled with a gas at 22°C at 747mmHg. The mass of the...

A: We will use ideal gas equation to find molar mass of gas and then estimate the gas .

Q: A major component of gasoline is octane (C,H,). When octane is burned in air, it chemically reacts w...

A: We will first write balanced stoichiometric equation, then using it calculate mass of oxygen require...

Q: Gaseous butane (CH (CH,) CH, reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

A: To find theoretical yield, first write balanced reaction with O2. Then balance that reaction and fin...

Q: Biofuels such as wood generate carbon dioxide when they are burned, but biofuels are nonetheless con...

A:

Q: What is the [H3O-] and [OH-] ion concentration respectively in a solution that contains 0.155 M HNO3

A:

Q: Given that a mixture of nitric acid (bp 86 °C) and water forms a maximum-boiling-point azeotrope tha...

A: Solution.                                 Given That mixture of nitric acid =  bp 86 °C maximum-boi...

Q: The equation for the dissolving of magnesium hydroxide is: Mg(O H)2(s) + heat 2 Mg2+ "(a q) + 2 O H ...

A:

Q: Which reaction results in an increase in the entropy of the system? * O H20(g) H20(L) H20(L) H20(s) ...

A: Entropy: Entropy can be defined as the measurement of randomness or disorderness in the thermodynami...

Q: hy is having a wash bottle useful for titrations?

A: Given : We have to tell why we use wash bottle during titrations.

Q: 2. What is the hybridization of each carbon atom in this molecules? CN

A: Carbon with 4 sigma bonds in its surrounding is sp3 hybridized.  Carbon with 3 sigma bonds in its su...

Q: 7.) Use the folowing themochemical equations as needed to find the heat of formation of diamond: C(d...

A: Given equations are : 1). C (diamond) +  O2 (g)  --------> CO2 (g) , ΔH1 = -395.4 KJ  2). 2CO2 (g...

Q: The action of formaldehyde on protein is: a. coagulation b. dialysis c. autolysis d. saponificat...

A: Formaldehyde is a well known cross-linking agent that can inactivate, stabilize, or immobilize prote...

Q: What is the molarity of K+ in a solution that contains 89.72 ppm of K3Fe(CN)6 (329.3 g/mol

A: we know that  1ppm = 1 mg/L formula for Molarity =  M = {gram of molecule/ molar mass of molecule}/V...

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.