A student said that one cubic yard (yd³) of water weighs almost a ton. Is he correct? How much does a cubic yard of water weigh (in tons)? Report your answer to three significant figures, and use a density of 0.998 g/mL for water. Show all work below. credit

Q: 4. Circle the following in which the two representations are not the same molecule. Η Η Η Η ...Τ a)…

A: The condensed structure of an organic compound is a shorthand representation that shows the…

Q: Wyatt (my beagle) weighs 42.50 lbs., convert his weight to grams. 1 lb = 453.59 g O 1.928 x 104 g…

A: Given, weight in lbs = 42.50 lbs we know, 1 lb = 453.59 g => weight in grams = 42.50 lb x (…

Q: Draw the Newman projection formulas for CH3CHBRCH₂CH3 and sketch the potential energy versus…

A: Newman projection of any molecule is 2D representation of that molecule viewing from front to back…

Q: Draw the mechanism by which it is possible to go from an open structure to a cyclic one, in the form…

A: Pyranose and furanose are cyclic forms of sugar. Pyranose is six member sugar and  furanose is five…

Q: Consider the reaction with the rate law, Rate = k(BrO3Br (H+)2 By what factor does the rate change…

A:

Q: The most stable conforma ion Has the methyl group equatorial and all other groups axial o Has all…

A: Given : structure of molecule Tip: bulky groups at equatorial position are more stable.

Q: 1. Research on the limitation of accuracy of the following instruments: a. analytical balance b.…

A: Note: Since you have posted a question with multiple sub-parts, we will provide the solution only to…

Q: What is the concentration of A after 74.3 minutes for the reaction A- Products when the initial…

A: Given : time = 74.3 minute      Initial concentration= 0.800 M      K = 0.00651 M/min  Tip : apply…

Q: What is the concentration of A after 11.7 minutes for the zero order reaction A ->> Products when…

A: Given: zero order reaction  Tip : apply zero order reaction equation

Q: Use the figure below to answer the following questions. Molecule 1 Molecule 2 Molecule 3 Molecule 4…

A:

Q: Question 11: You are a gemstone expert studying samples of various materials. Gemstone Hambergite…

A: From the given gemstones, the most massive gemstone is = Smoky Quartz (density = 2.65 g/mL) The…

Q: Which of the following features the correct use of curved arrows to describe the chemical changes…

A: In this reaction base NH2- abstract the acidic hydrogen from alcohol and gives alkoxide ion and…

Q: Macmillan Learning Group the elements into pairs that would most likely exhibit similar chemical…

A:

Q: 3) At 207 °C, Kp = 0.276 for the reaction PCl5(g) ⇌ PCl3(g) + Cl2(g) a. If 0.100 mole of PCl5(g) is…

A: According to the question, The Kp= 0.276  The reaction is given by, PCl5(g) ⇌ PCl3(g) + Cl2(g) The…

Q: 2+ What is the ppb concentration of a solution that contains 0.250 mg of Pb²+ in 4.00 × 104 g of…

A: mass of solution = mass of solute + mass of solvent ppb = mass of solute in grammass of solution in…

Q: At equilibrium, what percentage of A will be converted to B for the following seaction at 25°C 2 @ B…

A: Given A ⇔ B ∆H0 = 12 kJ /moland ∆S0 = 25 Jmol.Kand T = 250C = 273 + 25 = 298 K

Q: Wine goes bad soon after opening because the ethanol (CH3CH₂OH) dissolved in it reacts with oxygen…

A: The given information is as follows: The moles of acetic acid produced = 1.60 mol The moles of…

Q: Which of the following compounds gives a ¹H NMR spectrum consisting of only a singlet? O…

A: In the NMR spectrum, the number of signals depends on the number of different types of equivalent…

Q: Rank the following aqueous solution by increasing boiling point. (1) 0.10 m NaCl (2) 0.10 m Al(NO3)3…

A: The given aqueous solutions are  (1) 0.10 m NaCl  (2) 0.10 m Al(NO3)3 (3) 0.30 m C12H22O11 (sucrose)…

Q: What is the molarity of a 12.5 ppb Fe²+ solution? O 2.24 x 10-7 M O 1.86 x 10-8 M O 6.72 x 10-7 M O…

A: The parts per billion (ppb) concentration of iron in the solution is given by: ppb concentraion of…

Q: Seawater contains an average of 1.08 x 10^3 ppm of Na+ and 270ppm of SO4^2- . Calculate a) the molar…

A:

Q: Which reaction below might be a suitable coupled reaction for the reaction A + B -> C + D (AG = -8.7…

A: A spontaneous reaction is the one in which ∆G is negative.  When two reactions are coupled then…

Q: (42-44) Given magnesium ion below, with the atomic number 12 and mass number 24, find the following:…

A: Given Element is Magnesium (Mg) Charge on Mg is +2 Mass number = 24 Atomic number =12 Number of…

Q: Use this diagram to answer the following questions. Suppose a small sample of pure X is held at -44.…

A: We need to find the state of the sample at -44oC and 2.9 atm.

Q: Question 3 Homework Unanswered Determine the pH that must be achieved to produce a concentration of…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 0.35 What mass of carbon monoxide (kg) is needed to reduce a sphere of hematite (iron(III) oxide)…

A: Given:  Diameter of the hematite sphere = 12 cm  Radius of the hematite sphere = 122=6 cm Calculate…

Q: Use the References to access impo a. How many ATOMS of sulfur are present in 2.09 moles of disulfur…

A:

Q: How does the certainty of density compare with that of mass and volume? A. What uncertainty estimate…

A: Density is a physical property of matter that describes the amount of mass contained in a given…

Q: A major component of gasoline is octane and water (H₂O). What mass of carbon dioxide is produced by…

A:

Q: 5. Draw the Anti, Gauche, and Eclipsed Newman projections of hexane looking down the C3-C4 bond.…

A: Answer : Given that,

Q: 2. Draw each of the following, using line formulas: 2-Pentanol 1,2,4-Heptanetriol…

A: In organic chemistry, line formulas are a way to represent the structure of a molecule using lines…

Q: A scientist is testing how much pressure human lungs can endure on a deep sea dive. a. His lung…

A: •Given:- =>Here initial diver present at sea level and than he dives and goes to 6 m deep in sea.…

Q: How would you prepare 500 ml of a 0.5 M HCI solution from a 2 M HCI solution?

A: The given information is as follows:         The concentration of stock HCl solution M1= 2 M Volume…

Q: 5. Balance the following chemical equations. a) SnS2(s) + O₂(g) → SnO₂(s) + SO₂(g) b) C₂Hs(g) +…

A: we have to balance the given equations

Q: 21. Calculate the oxidation number of C on the indicated carbons. d) a) H3C k OH b) OH & CH₂ c)…

A: Oxidation number of carbon in different type of organic molecules can be determined with the help of…

Q: 40 grams of CaCl2 are weighed out and placed in a 4L volumetric flask and is filled to the mark.…

A: Answer:- This question is answered by using the simple concept of calculation of molarity of the…

Q: Q. 2 An aqueous suspension dosage form is prepared which contains 150 mg of drug per ml of…

A: Solution- In zero order reaction rate is independent of initial concentration of reactants.

Q: 7. Write a general equation representing the oxidation of a 2° alcohol.

A: A secondary alcohol is an organic chemical compound that contains a hydroxyl (-OH) functional group…

Q: draw the resonance structure of benzaldehyde

A: Benzaldehyde-Aldehyde functional group is attached to the benzene ring, aldehyde carbonyl is polar…

Q: A sample of sodium oxide has a mass of 123.88g. How many particles does it contain?

A: Given, mass of sodium oxide = 123.88 g we know, molar mass of sodium oxide (Na2O) = 61.9 g/mol…

Q: Pennies currently in circulation are composed of 97.5 % zinc and 2.5 % copper (by mass). What is the…

A: We know that morality = moles of the solute / kilograms of solvent   as here copper is in less…

Q: Draw the products for the following reactions.

A:

Q: Ammonium perchlorate (NH CIO) is the solid rocket fuel that was used by the U.S. Space Shuttle and…

A:

Q: Draw Homosalate structure and circle the parts of the structure that interacts with UV light.

A: In spectroscopy, every compound produces the peaks according the element or structure of it. The…

Q: 1. The mobile phase in the TLC simulator uses a mixture of the organic compounds: ethyl acetate and…

A: We are given the structure of the molecules ethyl acetate and hexane. We have to identify the polar…

Q: 3. You are to prepare 2 L of a 15% neomycin solution; you have on hand a 25% solution. How much…

A:

Q: 6. When a 10.0 g sample of an unknown organic acid (Contains C, H, O) is subjected to combustion…

A:

Q: 2 2) The rate constant for the reaction O (g) +03 (g) > 2 O₂ (g) at 298 K is expressed in…

A:

Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 16.7…

A:

Q: What is the concentration of A after 68.7 minutes for the reaction A → Products when the initial…

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.