Fifty milliliters of dextrose 70 % (w/v) is mixed with 250 mL of purified water. What is the final  concentration of dextrose, in milligrams per milliliter? Round to the nearest whole number.

Q: O Predict the Product of the reaction. Propose a mechanism for the reaction. + Nita H+ ?

A: Here hydrogen ion act as catalyst,which speed up the reaction by increasing the electrophilicity of…

Q: when 268 des OF I FO₂ is diss 21 OF solution, it is found at Equilibrium Bat [OH-] = 2.13.-110-13…

A: Solution:  In this we have to calculate acid ionization constant,

Q: Ethyl acetate reacts with sodium hydroxide when the two are mixed. The reaction, called ester…

A:

Q: State whether or not each of the following combinations would make a buffer solution?  a) HF / NaF…

A: A buffer solution must contain a weak acid and its conjugate base. A buffer can be made by…

Q: Explain how your observations in the table above verify that the residue in your crucible after…

A: Introduction :  Mass percent can be defined as the mass of the element or solute divided by the mass…

Q: Thinking & Communication For each of the following questions please include the following…

A: This is the Clemensen Reduction type of reaction . In the above reaction the aldehyde reactant is…

Q: Consider the reaction: ICI(g) + Cl₂(g) → ICI (s). The AG° of the reaction is -17.09 kJ/mol.…

A: we have to calculate the value of ∆G

Q: Gaseous butane (CH3(CH2)2(CH3)) reacts with gaseous oxygen gas (O2) to produce gaseous carbon…

A: Given, Water produced = 1.75 g butane = 4.6 g Oxygen = 9.2 g

Q: How many milliliters of silver nitrate is required in the standardization? If wt. of silver…

A:

Q: ¿ A 1. Me3S I, NaH, THF 2. NaN3, DMF, heat 3. PCC, CH₂Cl₂ N3 N3 OH "Z" a 3 d. N3 B ? C D

A:

Q: Acetylene and oxygen react to form carbon dioxide and water, like this: 2C₂H₂(g)+50₂(g) 4CO₂(g) +…

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Q: Example: CHF3 Consider the highlighted bond. If the bond is polar, click on the more electronegative…

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Q: Classify these salts according to Strength and Role in the Buffer system 1. Barium chloride (BaCl2)…

A: Buffer system is a unique system which is resistant to pH change upon the addition of a small amount…

Q: Column 1 Mass of empty and clean evap. dish ívàss or the evap. aisn + sodium bicarbonate (g) 1st…

A: To calculate for the following and label it under Trial 1 and Trial 2. Mass of NaHCO3 initially used…

Q: The basic postulate of collision theory is that the rate of a reaction is proportional to the number…

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Q: 2. A 1.1324 g sample of an iron ore is dissolved in acid. The iron is oxidized to a +3 state and is…

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Q: At a certain temperature the rate of this reaction is first order in CICH₂CH₂Cl with a rate constant…

A: Given, First order reaction, ClCH2CH2Cl (g) ----> CH2CHCl (g) + HCl (g) Rate constant (k) = 0.144…

Q: Use the T-xy diagram for mixtures of benzene (Mbenzene=78.11 kg/kmol) and kg/mol) at 1 atm to answer…

A: To identify the number of moles of benzene needed to be added to a mixture of benzene and toluene…

Q: uld you proceed with the follow 3. What is the main major product(s) of the following reaction. Draw…

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Q: Lewis-dot structures are determined to be correct primarily by implementing octet rule after…

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Q: What pressure is exerted by 780.4 g of CH4 in a 0.870 L steel container at 130.3 K?

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Q: What volume of purified water, in milliliters, do you need to add to 5 mL promethazine 2 mg/mL…

A:

Q: 50.0 mL of HCIO2 is titrated with 16.38 mL of 0.25 M NaOH before the color change of the endpoint…

A: 50.0 mL of HClO2 is titrated with 16.38 mL of 0.25 M NaOH before the color change of the enpoint…

Q: Acids and bases are described through several theories (Arrhenius and Bronsted-Lowry theories). The…

A: The construction and revising of these theories demonstrate the development of science.   Other…

Q: Phosphoric acid is a colorless, syrupy liquid used in detergents, fertilizers and carbonated…

A: Molecular formula of phosphoric acis is H3PO4.  Molecular mass is determined by the sum of atomic…

Q: If an ideal gas has a pressure of 9.53 atm, a temperature of 501 K, and a volume of 11.09 L, how…

A:

Q: Given the thermochemical equations X₂ + 3Y₂ → ->> 2XY, X₂ +2Z₂ → 2XZ₂ ΔΗ, = -160 kJ 2Y₂+Z₂2Y₂Z AH3 =…

A: Given, a) X2 + 3 Y2 -----> 2 XY3  ∆H1 = -320 kJ b) X2 + 2 Z2 -----> 2 XZ2  ∆H2 = -160 kJ c) 2…

Q: For each of the following sets of reactants, write the balanced equation for the single displacement…

A: Gold metal is very inner in nature.

Q: Liquid hexane （CH3 （CH3）4（CH3）） reacts with gaseous oxygen gas （O2）to produce gaseous carbon dioxide…

A:

Q: e. Bi H₂O + MnO, Bi MnO + OH Bi+Minou-Biano + f. SOCIO; + OH H₂O SO,+ Chu 8. Cu + HNO, → Cu" + NO +…

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Q: Sort the characteristic properties of the following isotopes of nitrogen into their respective bins.

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Q: How many moles are in 1.46 kilograms of sulfur? A. 45.5 B. .0455 C. .0910 D. 91.0

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Q: 40.0 mL of HF is titrated with 19.76 mL of 0.15 M KOH before the color change of the endpoint…

A:

Q: Determine the maximum wavelength of the following molecules. a) b) Ø Br O

A: We would make use of Woodward rules to determine the maximum wavelength here.

Q: a) Япон OH b) їх c) з-за 8-4 HO. d) e) я ОН xћ ОН НО ОН

A: Synthesis of given products from given starting materials is achieved by various reagents.

Q: Please identify the functional groups and bonds of the five major peaks of this solid unknown and…

A: Answer. Five major peaks of the given spectra are: 2822 cm-1 medium strong (C-H stretching -alkane)…

Q: Given:  Weight of silver chloride: 0.750g MW of silver nitrate: 170 g/mol MW of silver chloride: 143…

A: Volume of silver nitrate for standardization can be calculated from the moles of silver chloride…

Q: rite/show the enthalpy change using the four methods of representing the equation learned in this…

A:

Q: For an element with atomic number 20, which is the last or highest occupied subshell of atomic…

A: Given : An element with atomic number 20  The element with atomic number 20 is Calcium .

Q: Classify the salts according to strength and role in buffer system. Classifications are as follows:…

A: wehf;kjehwqkfjgwqebf

Q: A solution is made by mixing 3.40 g of tea in 76.0 g of water. What is the mass percent of tea in…

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Q: Show the complete reaction mechanism that would make N-butylhexanamide from butane.

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Q: The pH of a 0.2L HNO2-NO2 buffer solution was determined to be 6.23. The solution was mixed with…

A: Buffer solution A buffer solution is an aqueous mixture of a weak acid and either its conjugate base…

Q: Jack determines the concentration of NaOH by titrating it with 4.0 g KHP (a monoprotic acid). It…

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Q: Match the unit abbreviation with the quantity being measured cm mL g/mL C bb mol °℃ atm [Choose]…

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Q: Relative Intensity 100 80 20 0 MS-NW-1589 25 Question 2: Predict the structure of the unknown…

A: The mass spectra helps us to find the m/z value of molecular ion as well as m/z value of stable…

Q: Consider the following rotational-vibrational line spectrum: a. D b. G C. C d. F -Vight which peak…

A:

Q: Provide the correct three-letter abbreviation for the following amino acid: O || H₂N-CH-C-OH I CH₂ I…

A: Amino acids contain carboxylic acid and an amine functional group on the same carbon atom. Amino…

Q: A sample of gas which has a volume of 191 m³ at 20 °C and 70 kPa has a mass of 132 kg. What is the…

A: we have to calculate molar mass of gas

Q: According to Le Chatelier's Principle, how does increasing the concentration of a reactant affects…

A: •Le chatlier principle:-According to this principle if we increase concentration of reactant than…