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Q: A certain solution consists of isopropyl alcohol diluted in water. If a 500 mL bottle contains 75 mL...

A: The volume of solute in milliliter present in 100 mL solution is known as the volume percent concent...

Q: A solution is made by mixing 50. g of acetone (CН), СО) and 25. g of methanol (CH,он). Calculate the...

A: Given :-  Amount of acetone = 50. g  Amount of methanol = 25. g  To be calculated :-  Mole fraction ...

Q: "solid potassium chlorate reacts to form solid potassium chloride and gaseous oxygen."

A: Moleculer formula of Potassium chlorate is KClO3  Moleculer formula of potassium chloride is KCl  Mo...

Q: Following AAS analysis, a graph of absorbance versus ppm nickel standard gave a best-fit line y = 0....

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Q: Quantity Standard Millimeter Mercury Cadnaen mm Hg) Torr atmosphere(atm) 1 Pascal( Pa) nienimateh sl...

A: Unit is defined as the quantity which has a fixed magnitude. Many units of a physical quantity are t...

Q: In the following reaction AH° = -3351 kJ is reaction. 11. and therefore heat is by the 4Al (s) + 30,...

A: Exothermic reactions are those in which energy is released during the reaction  whereas endothermic ...

Q: give 2 examples of enthalpy, entropy, and Gibbs free energy.

A: Examples of enthalpy, entropy, and Gibbs free energy are given below

Q: CH, What is the name of the structure shown? O m-Nitrotoluene O 3-methylnitrobenzene 3-nitromethylbe...

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Q: Glucose levels are routinely monitored in patients suffering from diabetes. The glucose concentratio...

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Q: ercury and oxygen react to form mercury(II) oxide, like this: 2 Hg(1)+O2(g)→2 HgO(s) a certain tempe...

A: Given :-  The volume of reaction vessel is: 10 L The amount of mercury present at equilibrium is: 12...

Q: (i) Br. C=c=cBr CI chiral molecule, but no asymmetric carbon atom

A: Though the molecule that is allene type, does not have any asymmetric carbon atom, but it has chiral...

Q: Draw an achiral diastereomer of the molecule shown below CH3 Но -- OH H- OH CH3

A: An achiral compound is the compound that must have an superimposable mirror image.  Again, If two co...

Q: A chemistry student weighs out 0.234 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric fl...

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Q: What is the freezing point depression of a 1.50 m solution of sucrose in water? No need to include t...

A: Given :- molality of sucrose solution = 1.50 m  To be calculated :- freezing point depression

Q: A chemist must prepare 0.525L of 9.00 M aqueous silver nitrate (AgNO,) working solution. She'll do t...

A: Generally we prepare working solution from stock solution by dilution ( distilled water ) so, we hav...

Q: Calcium plus carbonate

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Q: 8. Classa fy each compoind as alkane, atkine, alkynes aromati hydrocarbon, al cwhol ,ether, alaihyde...

A: Study each organic compound carefully to first examine the functional group present.

Q: Is the molecule below polar or non-polar? Why? Hint: the electronegativity of Ec is 3.4 :F-Ec =N: :F...

A: Concept; Dipole moment equal to zero called the non-polar molecule .  Dipole moment not equal to zer...

Q: Given the equation below, which of the following is true? 2 Mg(s) + O2(g) → 2 MgO(s) + 72.3 kJ 12. A...

A: 2Mg + O2->2MgO+72.3KJ

Q: Formic acid, HCO2H, is the irritant that causes the body’s reaction to ant stings. What is the conce...

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Q: In the image attached, the first questions mark is 4-nitrophenol and the second question mark still ...

A: We have to carry out the given synthesis. The initial compound is para-nitrophenol. When para nitrop...

Q: Select the incorrect statement. Specific heat capacity can never be a negative value. Specific heat ...

A: Specific heat capacity is the amount of heat required to increase the temperature of 1g of  a substa...

Q: equation for this nuclear reaction and Phosphorus- 29 is a positron emitter. Write an identify the p...

A: In positron emission or beta plus decay, proton inside a radionucleide nucleus is converted into neu...

Q: Give the name of the molecule

A: The given molecule contains a five-carbon atoms chain and a thiol (SH) functional group attached wit...

Q: 19. For each of the following, explain how you would prepare 1.0 L of a solution that is 0.10 M in K...

A: As there are multiple questions with multiple subparts,  so as per our guidelines I will answer only...

Q: In stock is a 2 L of a solution that is 60% (v/v) alcohol in water. How many cc of pure alcohol does...

A: Volume of solution = 2L

Q: Nickle has a face-centred cubic structure and has a density of 8.90 grams per cubic centimeter. What...

A: Given, Element - Nickel (Ni) Structure - FCC (face centred cubic lattice) Density (d) = 8.90 g/cm3 M...

Q: what is the purpose of the water trap that is connected in the condenser in the set up shown below

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Q: Which one of the equations below represents what happens when HC,H3O2 is dissolved in water? O HC2H3...

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Q: 3. At 900 °C, titanium tetrachloride vapor reacts with molten magnesium metal to form solid titanium...

A: 3. We need to write balanced equation and identify oxidation and reduction. 

Q: Write the combustion reaction for C2H6

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Q: Calculate the pH at 25 °C of a 0.43 M solution of anilinium chloride (C,H,NH,CI). Note that aniline ...

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Q: the structure of sphingomyelin differ from that of ceramide?

A: This is a multipar questions. According to guidelines we can solve only three parts o starting n mul...

Q: Required is 350 mL of 3/5 (v/v) alcohol in water solution. Perform the calculations needed to prepar...

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Q: At 25°C, gaseous SO,Cl, decomposes to SO, (g) and Cl, (g) to the extent that 12.5% of the original S...

A: Kp is equilibrium constant and we calculate Kp with the help of partial pressure of gas

Q: For a particular process, the system releases 17 kJ of heat and has 21 kJ of work performed on it. W...

A: Heat released by a system has a negative sign and work done on the system has a positive sign.

Q: For each of the following balanced oxidation-reduction reactions, (i) identify the oxidation numbers...

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Q: What is the systematic name of the given structure?

A: The systematic name of given structure is

Q: Q12

A: moles of HF = molairty x volume (l) moles of HF = 0.25 x 1 moles of HF = 0.25 moles of NaF = 0.25 x ...

Q: NH3 (g) + HCl (g) = NH4Cl   what type of reaction is this?   NH4Cl (s) is a solid

A: The given reaction is, NH3(g) + HCl(g) ---> NH4Cl(s)

Q: A buffer solution NaCsH3O3 (sodiu is present in the

A: Molarity of HC5H3O3 = 0.250 Molarity of NaC5H3O3 = 30.0ml Volume of HC5H3O3 = 0.220M Volume of NaC5H...

Q: position. Calculate the energy associated with steric strain in the following conformation. CH3 ОН

A: Here we have to determine the steric strain associated in given chair conformation. 

Q: 21

A: We are given phase diagram of Benzene we have to find out the boiling point for benzene and also fin...

Q: Aluminum has a density of 2.70 g/cm^3. How many moles of aluminum are in a 13.2 cm^3 block of the me...

A: Given,  Density of Aluminium = 2.70 g/cm3  Volume = 13.2 cm3

Q: Suppose a 500. mL flask is filled with 0.70 mol of CO, 1.7 mol of NO and 1.0 mol of CO,. The followi...

A: The Molarity of CO at equilibrium can be calculated from the moles of CO at equilibrium.

Q: COMPLETE BALANCED CHEMICAL EQUATION

A: This is a multipart questions.According to guidelines We can solve only two parts of starting in mul...

Q: How many liters of a 0.200 MM sodium cyanide solution would be needed to react with 50.0 kgkg of roc...

A: Gold reacts with sodium cyanide as follows: 4 Au(s) + 8 NaCN(aq) + O2(g) + 2H2O(l)→ 4 Na[Au(CN)2](aq...

Q: concentration of the solution. (c) the mass in grams of NiCl2 contained in each liter O. A 12.5% (w/...

A: As per our guideline, only one to be solved, if multiple questions are posted. Hence, question no. 9...

Q: Gallium Arsenide has a density of 5.32g/cm3 and the chemical formula GaAs. A GaAs piece has a volume...

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Q: Refering to the figure below, Which of the three circled areas corresponds to the region with the fa...

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.