. You have 41 mL of water in a graduated cylinder. After dropping a pebble into the graduated cylinder, it now reads 77 mL. What is the volume of the pebble?

Q: Rate constants are temperature dependent. Therefore, the reactions must all be conducted at the same…

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Q: The values of the rate constant for the reaction 2 N₂O5(g) - 4 NO2(g) + O2(g) were determined at…

A: Concept based on the activation energy.

Q: A 55.6 g sample of glass is put into a calorimeter (see sketch at right) that contains 300.0 g of…

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Q: 1.2-gg sample of carbon dioxide (CO2CO2) is fully decomposed into its elements, yielding 0.314 gg of…

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Q: Which of the following lists the units from smallest to largest? km, m, cm, mm, um um, cm, mm, m, km…

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Q: A 5.65 carat diamond is dropped into a graduated cylinder containing 5.72 mL of water. What was the…

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Q: What is the reading from this graduated cylinder? mL 25 20 15

A: Given,

Q: Practice Exercise A student planning a party has $20 to spend on ✪ her favorite soft drink. It is on…

A: Amount to be spent on party for the favorite soft drink = $ 20. There are two options available…

Q: Finding the side length of a cube from its volume in liters A technical machinist is asked to build…

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Q: INSTRUCTION: Fill in the table with what is asked. Refer to your periodic table to answer the…

A: Atomic number is equal to the number of electrons in an atom or number of protonsAtomic number = no.…

Q: 2. a.. Calculate the theoretical yield of Compound Y if 10.5 g of Compound X is reacted with an…

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Q: Name the compounds below according to the IUPAC naming system. 1. н н Н Н - C - C - C - Н I | н н…

A: We follow certain rules assigned by IUPAC to name organic molecules.  Some of these rules are given…

Q: The amino acid histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, as shown. COOH…

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Q: Calculate the mass percent of solute in each solution. Calculate the mass percent of 3.87 g KCl…

A: The mass percent of an element in a compound is the percentage ratio of the mass of the element by…

Q: What are the ideas of these following components based on the idea of "like dissolves like"?…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…

Q: 3. Thorium-232 has a radioactive decay series that ultimately produces lead-208. What is the…

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Q: Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by…

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Q: 9. For the following reaction at 298 K, AS = -308.2 J/K and AH = -192.7 kJ: 4NO(g) N₂O(g) + N₂O₂(g)…

A: Given reaction is 4NO(g) → NO(g) + N₂O3(g) For this reaction at 298 K , ΔS= -308.2 J/K and = -0.3082…

Q: A chemist has a block of iron metal (density is 7.87 g/mL). The block weighs 2.10 g. What is the…

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Q: How to solve the conversions? 83.6 lbs to kg , 45.6 mg to oz , 52.4 gals to litre.

A: Given conversion: 83.6 lbs to kg 45.6 mg to oz 52.4 gals to litre We have to carry out these…

Q: udent ran the following reaction in the laboratory at 479 K: (g) + Cl₂(9) ⇒PCI5(9) n she introduced…

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Q: If I have a mass of 78.8 kg and a volume of 79.3 L, how dense am I in grams per microliter?

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Q: How the Half Cell Potential of an electrode is measured.

A: Half cell potential of cell is also called standard electrode potential.

Q: Which human error would contribute to an incorrect volume measurement? measuring to an additional…

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Q: The dissolution of solute into a solvent can be dependent on a variety of factors. These include the…

A: A solute can be either solid, liquid, or gas.  The solubility of a solute in a solvent depends on…

Q: 10. Potassium chloride (KCI) has a molar mass of 74.551 g/mol. Calculate the mass in grams of KCl…

A: Given,  The molarity of aqueous KCl solution = 0.300 mol/L. The volume of a solution = 50.00 mL The…

Q: what is the set up equation for this problem?

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Q: The cover of the car’s engine is called a hood. The hood is coated with an insulator to reduce…

A: Element Any compound that cannot be broken down into simpler chemicals by regular chemical processes…

Q: Why is tyndall effect shown by colloidal particles?

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Q: tration of a solution when 9.5 g of K₂CrO4 is dissolved in 1700 mL of water? SL SME ? M

A: Given,  Mass = 9.5 g Molar mass = 194 g/mol Moles = mass/ molar mass   = 9.5/194 = 0.0490 mol Volume…

Q: A particular recipe calls for 342 grams of sucrose (C12H22011). How many moles of sucrose are in…

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Q: The pH of a solution is 9.41 ± 0.02. What is the concentration of H* in the solution and its…

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Q: 5. c) Assign absolute configurations to the chirality centres in the following molecules: b) H₂C=…

A: Absolute configuration of compounds as per CIP rule (Chiral center has been marked with a red * in…

Q: Q1) How can you tell, by looking at the refluxing set-up, that the reaction between n-propanol and…

A: A fruity smell of ester is the physical property of an ester which helps in determining the…

Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: H H - Does (CH3)2CHCCCH3 show cis/trans isomerism? Explain why or why not.

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Q: A marble weighs 4717 µg. How much does it weigh in grams? Please round your answer to the 5…

A: 1 microgram =1 × 10-6 gram 4717 microgram = 4717 × 10-6 gram

Q: 12. Convert 121 m into ft.

A: We can solve this question by using the concept of unit conversion for distance.

Q: During the compression stroke of a certain gasoline engine, the pressure increases from 1.00 atm to…

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Q: 2. Fill in the missing reaction conditions for each reaction below. Ĉ CI OH OH OH OH Br ОН Ĉ OH H…

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Q: The phase diagram for carbon is shown. Which phases are present at the lower triple point? graphite…

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Q: Figure 2.10 (a) The dependence of repulsive, attractive, and net forces on interatomic separation…

A: r∘ that is equilibrium spacing is that distance between two atoms when a bond is formed between them…

Q: 4. For the following molecules, write the IUPAC name corresponding to their structure. Include the…

A: In writing  the IUPAC name we must first find the longest carbon chain according to IUPAC rule.and…

Q: 1. The plates were "pre-baked" at >120°C. Why is this step necessary?

A: 1. It is necessary otherwise it will create problem during TLC. Solvent will not move properly. So,…

Q: Circle every active position and indicate at each whether it is electrophilic or nucleophilic.

A: Electrophile is electron loving species .They attack on those centres of the substrate that have…

Q: Interpret the NMR spectrum and give the final structure of the compound 2.00 3 2.00 2 Chemical shift…

A: We are given the 1H NMR spectrum of an unknown molecule and we have to find the structure.  The…

Q: significant

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Q: I. COMBUSTION Burning *** burning organic compound will always result to Carbon dioxide and…

A: combustion reaction: Combustion reaction is a reaction in which the Hydrocarbons react with oxygen…

Q: List the important products of the Chlor_alkali process .write one important use of each.

A: Chlor-alkali process is an industrial process in which electrolysis of NaCl can be done.  In this…

Q: A radiation of 250 nm incident on HI results in the decomposition 1.85 ×10^-2 mol within a…

A: GIVEN Here a radiation of 250nm incident on HI results in the decomposition eg 1.85 × 10-2 mol.…

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.