Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when placed in a graduated cylinder.

Q: Aqueous sulfuric acid (H,SO,) will react with solid sodium hydroxide (NaOH) to produce aqueous sodiu...

A: Answer: 18.8 g

Q: Determine the element which is oxidized, element which is reduced, oxidizing agent, and reducing age...

A:

Q: 4. How should we test appearance of solutions?

A: We have to tell the test of appearance of the solutions. We know that a solution is a homogeneous mi...

Q: Gaseous ammonia chemically reacts with oxygen gas to produce nitrogen monoxide gas and water vapor. ...

A: Here we have use mole concept , first we write balanced chemical equation and do the stoichiometric ...

Q: Calculate the following answer and round to proper significant figures, Don't forget units. 2.22g x ...

A: Calculate the answer and rounding off---

Q: e mass percent

A:

Q: Suppose 8.15 g of potassium bromide is dissolved in 50. mL of a 0.60 M aqueous solution of silver ni...

A:

Q: ålöng än äiF onsidering a macroscopic object, a 0.40-kg cart is moving back an track between two bum...

A: Solution - According to the question - Given - Kinetic energy of cart = 1/2 mv2  = 1/2(0.4kg) (0.5m/...

Q: s of BrF, Br,, and F, at 250°C are 0.046 M, 1.2 M, 2. Consider the given reaction. 2BRF,Ce) = Br,8) ...

A: As per bartleyby guidelines i answered only first question so please don't mind. Thanks in advance. 

Q: Give the IUPAC name. Do not use 2013 Rules for Organic Nomenclature.

A:

Q: Calculate the number of hydrogen atoms in a 130.0 g sample of tetraborane (B,H10). Be sure your answ...

A: Calculation of number of hydrogen atoms:

Q: A study of the system, 4NH3(g) +502(g)-4NO(g) +6H0(g), was carried out at a certain temperature. A s...

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Q: Provide a complete arrow pushing mechanism for a single aldol condensation reaction between benzalde...

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Q: 1. What is the net ionic equation for the acid–base reaction between the weak acid, nitrous acid and...

A: We have a weak acid which is nitrous acid and strong base KOH.

Q: Suppose 1.53 g of barium nitrate is dissolved in 250. mL of a 42.0 m M aqueous solution of ammonium ...

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Q: A solution has [Fe2+] of 0.0200 M. What concentration of sulfide is needed before precipitation begi...

A:

Q: Which of the following substances is suitable for Dumas method to determine its molar mass? a. n-but...

A: Correct option is (d) propane

Q: A city is considering different water purification methods for supply. Which fact would help inform ...

A: Answer - The correct option is (d) Reverse osmosis system are most expensive because of the use of f...

Q: Titanium(IV) chloride decomposes to form titanium and chlorine, like this: TiCl,(1)→Ti(s)+2Cl,(9) At...

A: The equilibrium constant is the ratio of the concentration of the gaseous product to that of gaseous...

Q: 3) At T= 2200K, K = 3200 for the reaction shown below. N2 (g)+ O2 (g) = 2 NO (g) a) Using successive...

A:

Q: Nickel carbonyl decomposes to form nickel and carbon monoxide, like this: Ni(CO),(9)→Ni(s)+4 CO(g) A...

A: Given reaction is :  Ni(CO)4 (g) -----------> Ni (s) + 4CO (g)  Volume in L = 4.5 L  Mass of Ni(C...

Q: What is the mass percent of an aqueous sodium carbonate solution in which the mole fraction of Na2CO...

A: Solution - According to the question - Given - Moles of Na2CO3 = =mole fraction * moles of solution ...

Q: Vhich reagent(s) would serve as the basis for a simple chemical test that would distinguish etween e...

A: Vinyl cyclohexane and ethylbenzene 

Q: 4. The standard enthalpies of combustion reaction at 25 °C of H2i9) , n-butane, C«H10(g) , 1- butene...

A: We have to find enthalpy of reaction.

Q: Propose a synthetic scheme for the synthesis of 3-pentanone from ethyl bromide and cyanide as your c...

A: To synthesize the ketone product detail solution is given below

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

A: The balanced equation is as :-  H2SO4(aq) + 2NaOH(s) ----> Na2SO4(s) + 2H2O(l)

Q: Given the empirical formula of NO2 and a molar mass of 92.0 g/mol, what is the molecular formula?

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Q: 1. Octane, C8H18, has 18 different constitutional or chain isomers. One of them, isooctane, is used ...

A: C.  n-Octane will have a higher boiling point than 3,3‑dimethylhexane, because it branches less than...

Q: Hannah needs to make a solution of KMnO4 to be used in a chemistry experiment. On the shelf in her s...

A: Basically when we need to make solution of another lower concentration from a higher concentrations ...

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have...

A:

Q: Which anions were present in the student’s unknown? Explain.

A: In the first step, an unknown solution is first acidified with Nitric acid (HNO3) which generates bu...

Q: Which statement about chemical equilibrium is not true? O The same equilibrium state can be attained...

A: The reaction rates of the forward and backward reactions are generally equal.  All reactant and prod...

Q: Test III. Problem Solving Direction Answer the following. Show a complete solution for the mathemati...

A: Number of moles of aluminium sulfide = 8 moles  Number of moles of water = 12 moles 

Q: Is Km,app higher or lower than Ks and why? Does the vmax change when adding the inhibitor?

A: a) In competetive restraint, the inhibitor and the substrate seek the dynamic site of the catalyst. ...

Q: Provide complete solution. Determine the planar density of the Mo in (110) given than the atomic ra...

A: Given, atom = Mo, the indicies (110)

Q: 18. Determine the pH of a 0.227 M C6H5NH2 solution. The Kb of C6H5NH2 is 4.0×10-10. CHEM 1036' а. 13...

A: pH is defined as negative logarithm of concentration of hydrogen ions.

Q: Consider the reaction: H + ¿n → 2¾H + ¿n + _}H. Calculate the energy change for this reaction. Is er...

A: Energy relesed in a nuclear reaction is,  E= E=Δm×931MV

Q: Draw the Lewis structure for the polyatomic phosphite anion. Be sure to include all resonance struct...

A: Lewis structures are diagrams that show the bonding between atoms of a molecule as well as the lone ...

Q: 8. Pure copper can be produced by the reaction of copper(II) sulfide with oxygen gas as follows: CuS...

A: Given,  Chemical reaction :  CuS(s) + O2(g) -------> Cu(s) + SO2(g)  0.640 g of Cu metal produced...

Q: For the reaction, 2s02(g) + O2(g) - 2S03(g) at 450.0 K the equilibrium constant, Ko, has a value of ...

A:

Q: If the pressure exerted on a liquid is increased, while the temperature is held constant, what type ...

A: A phase diagram is given. We have to tell if the pressure exerted on a liquid is increased, while th...

Q: Given a solution of 0.1 M Ag+ and 0.2M of Pb2+, (Ksp for silver oxalate = 3.5x10^-11 and ksp for lea...

A: More soluble precipitate is the one having higher solubility product value. Here lead oxalate is the...

Q: 2. Which solution is the most acidic? А) 1.0 x 10-7 м ОН В) 2.3 х 10 3 М ОН С) 3.9х 10 8 М ОН D) 5.1...

A:

Q: 1.3 A gas is made up of the following components; 25 g of methane, 3 g of ethane and 1.5 g f propane...

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

Q: 12. In a reaction that converts the compound, MnO2 to the permanganate ion, MnO4l-. The number of el...

A: It is given that MnO2 is converted to MnO41-. We have to calculate the number of electrons gained or...

Q: A 22.0 g block of copper at 45°C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0.385 Jig...

A:

Q: Calculate the pH of a 7.51 M solution of HBrO. The K, of HBRO is 2.50 x 10. Express your answer usin...

A:

Q: How would you carry out the following reactions? (a) CHJCH2C=CH CH3CH3CCH, (bi CH,CH2C=CH CH3CH2CH2C...

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

Q: Consider the chemical reaction aC,H6 + 6CO2 + CH2O → ¿C2H;OH, where a, b, c, and d are unknown posit...

A: To balance the Chemical Reaction.,  

Q: Write an informative introduction about Matter.and Mixtures.

A: A substance can be defined as a material that has physical properties.It is basically a form of matt...

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.