A certain pipet delivers 127 mg of a solution at 20 °C. If the solution has a density of 1.0281 g/mL, what volume of the solution is delivered by the pipet? volume = µL

Q: When multiplying 981.9 by 7.22, the result on the calculator is 7089.318. Round the answer to the…

A:

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Q: 5 g of cobalt(ii)carbonate is dissolved in concentrated HCl. Ammonia Chloride (5g) and 50ml aqueous…

A: Given:5 g  cobalt(ii)carbonate is dissolved in concentrated HClAmmonia Chloride () and aqueous…

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Q: For the reaction shown, select the expected major organic product. ||| H₂ Pt IV ?

A: The reaction given is,

Q: C. Considering the triglyceride below, draw the products of the given reactions O ||…

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Q: Draw a structure (condensed or line structure) of a tertiary amine with molecular formula C₂H₁,N.

A: It is asked to draw the tertiary amine from the given molecular formula.To draw the tertiary amine,…

Q: can you explain the difference between a physical and chemical change?

A: Physical change :When the physical state of the matter  changes, it is physical changeChemical…

Q: 6. Use Hess's Law and the following data: Sro(s) à Sr (s) + 1/20₂(g) SrO(s)+ CO₂(g) à SrCO3(s) 2…

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Q: How many quarts (qt) are there in 2.0 L of gasoline? 1 qt = 946 mL 1000 mL 1L 1 qt = 2 pt 2 qts 2.1…

A: quarts in 2.0L of gasoline=?1 qt = 946 mL1000 mL = 1 L 1 qt= 2 pt

Q: Which of the following is a valid ionic compound formula? O A. MgAs OB. AIP OC.Li4S2 OD. Ba2N3…

A: Ionic compound is a chemical compound composed of ions held together by electrostatic forces. In the…

Q: Classify the six underlined properties in the following paragraph as chemical or physical: Isopropyl…

A: A physical property is a characteristic of a substance that can be observed without changing the…

Q: Give typed full explanation  Place 6.85 g of hydrobromic acid in a 100 mL round bottom flask and…

A: The reaction of 1-butanol with HBr gives 1-bromobutane as a product.Weight of 1-butanol taken = 5.5…

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Q: Label each pair of compounds with the appropriate label of their relationship: conformational…

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Q: A penny has a mass of 0.0027 kilograms and a volume of 0.54 milliliters. Set up the problem below…

A: The density of any substance is defined as the ratio of its mass to that of volume.

Q: Draw the structure of the dipeptide Gly-His in its fully protonated form. Gly-His

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Q: What is the total internal energy of 560 grams of nitrogen gas at 123o C? (Careful – nitrogen is…

A: Mass of N2 = 560gTemperature,T = 123°C                         T=123+273…

Q: In a sample of gold, the density is 19.32 g/mL and the edge length is calculated to be 408 pm by an…

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A: Significant figures, also known as significant digits or sig figs, are the digits in a number that…

Q: A nuclear physicist carries out a nuclear reaction where the reactants had a total mass of 3.251 438…

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Q: Which of the following is the correct condensed structure for the following compound? N. H H A)…

A: Condensed structural formula The condensed structural formula is one of the ways to draw organic…

Q: The decomposition of nitramide, O₂NNH₂, in water has the chemical equation and rate law O₂NNH,(aq)…

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Q: Write the IUPAC and Common name for these compounds (a) ОН NH₂ Cl Cl (c) COOH NO₂

A: IUPAC refers to International Union of Pure and Applied Chemistry. The IUPAC nomenclature for…

Q: How many milliliters of quinine solution (tonic water) are needed to prepare 10.00 mL of 2.552 *…

A: Molarity of a solution is the measure of its concentration. It is defined as number of moles of…

Q: PC15(g) PC13(g) + Cl₂(g) has Kp = 1.84 at a given temperature. What is the value of Kp for the…

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Q: Solve: 0.025 x 4.62 3.44 0.340 0.00335 0.034 0.033575581

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Q: Set up the problem and calculate the mass of 16.9 mL of copper. See the table below for the density…

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Q: What is the correct answer to the following expression? x 5.45 10-10 +5.74 x 10-12 Selected Answer:…

A: Given ,Expression : Objective : To find the sum of given expression

Q: Calculate the number of protons of carbon in 29 grams of carbon dioxide.?

A: grams of carbon dioxide = 29gWe have to calculate the the number of protons of carbon.

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Q: Macmillan Learning The radius of a single atom of a generic element X is 185 picometers (pm) and a…

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Q: How many moles of calcium carbonate are there in a 3.1 L of a 0.527 M solution?

A: Molarity = moles of solute/Volume of solution(L)

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A: Given:Histidine has a side chain with pKa =6.0pH given = 5.3To determine:% of histidine side chains…

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Q: Consider a Lewis structure of acetamide H3C-C(O)-NH2 . How many bonds to other atoms oxygen atom…

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Q: The radius of an atom of krypton (Kr) is about 1.9 Å. (a) Express this distance in nanometers (nm).…

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A: According to Huckel's rule compound which are planar, fully conjugated and contains (4n+2) pi…

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Q: The maximum amount of chromium(III) hydroxide that will dissolve in a 0.260 M chromium(III) nitrate…

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Q: Chelate Effect. The equilibrium constant for the following reaction conducted at 298 K lies far to…

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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.