tempature

Q: 1. Which of the following is NOT an example of physical property? B. Length A. Texture C. Intensity ...

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Q: 1. Using the equation E + S ⇆ ES → E + P, supply reaction involved in the experiment... 2.  How did ...

A: A question based on catalysis that is to be accomplished.

Q: Which of the following characterizations for cyclic ethers is INCORRECT ?     They are always aromat...

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Q: 654 g of I2 crystals are added to 5,230 g of benzene, Kf of benzene =5.12 ° C/m a) What is the molal...

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Q: TRUE OR FALSE: Group 14 elements are gases at room temperature and pressure

A: Carbon silicon germanium tin lead are group 14 elements

Q: TRUE OR FALSE: Aggregation of stoichiometric amounts of tetramethylammonium iodide and iodine in hot...

A: True. Polyiodides were synthesized by equilibrating stoichiometric amounts of tetramethyl ammonium i...

Q: Which of these metals will not be oxidized in hydrochloric acid under standard conditions at 25°C? ...

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Q: A voltaic cell that uses the reaction PdCl42−(aq)+Cd(s) → Pd(s)+4Cl−(aq)+Cd2+(aq) has a measured sta...

A: Given reaction is :  PdCl42- (aq) + Cd (s) -----> Pd (s) + 4Cl- (aq) + Cd2+ (aq)  Standard cell p...

Q: HN-CO- Но- HO, ÇI Но- FHO- но- Но CI NHAC H H NH2 N. H H HN HOOC HO ÓH Он HO OH -HO- OH Teicoplanin ...

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Q: 1

A: In the given reaction carbonyl group converted to alcohol. 

Q: H. H 1. CH3CH2MgBr, Et,0 ? 2. H3O* H3C

A: Grignard reagent  RMgBr (R - alkyl) acts as a nucleophile (R- +MgBr)  The epoxide ring (3 membered r...

Q: 4) A solution is formed by adding 35 g of ammonium nitrate to 250 g of water. What is the percent by...

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

Q: please explain how artificial food coloring are made up of

A: Food dyes are chemical substances which  were developed to enhance the appearance of food by giving ...

Q: 1) Zn e) Br OCH,CH CH/CH)CH 2) acidify cold 1) LIAIH, (excess) OCH THE / O°C -n PHCH,0 2) Nalo, / TH...

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Q: Choose among the choices (an) example/s of (an) strong base. a. NaOH b. KOH c. Ba(OH)2 d. Both A and...

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Q: Determine the volume occupied by 4.26 grams of Carbon dioxide gas (CO,) at STP? * O 2.17 liters O 3....

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...

Q: PURITY TEST Instructions: Note the REFRACTIVE INDECES of each of the samples and solve for their % p...

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Q: Question: 12.3 grams of a purified protein was dissolved in 260 mL of H20. At 50°C, the solution exh...

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Q: Kp = 1.50x10^-5 for the reaction 3O2=2O3(at 500 C). Initially, a 2.0L flask was filled with 0.350 at...

A: Answer: It is the formation reaction of ozone where 3 moles of oxygen are combining to form 2 moles ...

Q: End of Chapter Quetions References) This question has multiple parts. Work all the parts to get the ...

A: Mass of KNO3, Potassium Nitrate = 557 g Reaction:-  4KCl + 4HNO3 + O2 -----> 4KNO3 + 2Cl2 + 2H2O

Q: pH

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Q: A solution was prepared by dissolving 11.0 g of compound in 270.0 g of ethanol raising the boiling p...

A: Given data, mass of compound= 11.0 g  mass of ethanol = 270.0 g = 0.270 Kg  (but no need of that dat...

Q: 2. Convert 71.0 Pa to dyne/cm?.

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: I temperature

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Q: A solution was made by dissolving 3.75 g of a solute in 108.7 g of acetone . The solution boiled at ...

A: Given data,Mass of solute=3.75gMass of acetone=108.7gBoiling point of solution=56.58oCBoiling point ...

Q: paper chromatography

A: In this question we have to explain that the arrangement of the above compounds in increasing Rf if ...

Q: volume c

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

Q: a) Identify the type of the followings surfactants. CH3 R-S-o M R-N-CH2CH2-C-o CH3 (ii) (i) b) Which...

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Q: Starting from the universal gas constant (R = 0.0821 · mol-K ), determine the volume (in L) occupied...

A: Given, n=2.45 moles  T= 305K  P= 0.956atm  V=? Complete solution is given below in next step 

Q: 1kg of Hydrogen molecules H2contains 33.33 kWh of energy. 1 litter of liquid hydrogen weighs 70.99 g...

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Q: What is the pH of a 0.20 M solution of sodium acetate? The Ka for acetic acid is 1.8 x 10⁻⁵?

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Q: Brad tries out a weight-loss plan that involves repeatedly lifting a 41.4-kg barbell from the floor ...

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Q: Calculate the pH during the titration of 25.00 mL of 0.1000 M NaOH with 0.0500 M HCl at 25 °C after ...

A: Given,  Molarity of NaOH = 0.1000 M  Volume of NaOH in mL = 25.00 mL  Molarity of HCl = 0.0500 M  Vo...

Q: What mass of concentrated sulfuric  ( a 95% solution of H2SO4 by mas) is needed to prepare 500. g of...

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Q: A 10.0 g sample of sucrose (C12H22O11) was dissolved in 200.0 g of water. What is the vapor pressure...

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Q: s of sodium chloride, NaCI, reacts with an excess amc pxide, Mgo, how many grams of sodium oxide, Na...

A: Here 44 gram of sodium chloride reacts with excess of magnesium oxide (MgO). We have to determine th...

Q: 100 mL of water was mixed in 100 mL of 100 Proof alcoholic beverage. What is the percentage by volum...

A: percent by volume one of the concentration unit  here we are required to find the percentage by volu...

Q: NO:" + MnO2 → NO2 + MnO4 What is the coefficient of H* in the final redox reaction if balanced in an...

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Q: dimensional analysis

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Q: 22  An aqueous solution was prepared by dissolving 2.11 g of NaCl in enough water to make 1500. mL ...

A: The calculation of molarity of the solution in the solution is given below

Q: When the skeleton oxidation-reduction equation     MnO4- + Br- ---------> Br2 + Mn2+ is balanced in ...

A: Given reaction:-  MnO4- + Br- ---------> Br2 + Mn2+

Q: Which of the following is not attributed to boiling? Select one: a. Rapid process b. Occurs at a boi...

A: Boiling is the conversion of liquid into vapour. Boiling of a liquid takes place only at the boiling...

Q: 11) Using Bohr's equation for the energy levels of the electron in the hydrogen atom, determine the ...

A: Given, Using Bohr's equation for the energy levels of the electron in the hydrogen atom Orbit (n) = ...

Q: Do read carefully and answer accordingly Chlorophyll a (a plant pigment) has the following molar ex...

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Q: What will be the appropriate pH of a buffer prepared by mixing 100 ml of 0.1 M Na2HPO4 and 100 ml of...

A: amount of given concentration salt concentration Na2HPO4 = 100 ml x 0.1 M = 10mmol acid concentratio...

Q: A chemist determines by measurements that 0.075 moles of bromine liquid participate in a chemical re...

A: Given value -  Moles of Br2 = 0.075 moles, Molar mass = 159.808 g mol-1  Then,  

Q: AutoSave Book1 - Excel File Home Insert Page Layout Formulas Data Review fx Σ Insert AutoSum Recentl...

A: To find Milli moles as we know it is no. of moles multiply by 1000.  And hence to find no. of moles ...

Q: Calculate the molarity and the molality of the solution Calculate the estimated freezing point of th...

A: Given, A solution is prepared by dissolving solid FeCl3 in water. Molar mass of FeCl3 = 162.2 g/mol ...

Q: Which among the following is the result the beta emission of Francium-223? a. Radon – 222 b. Radium...

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Q: The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust, and other ...

A: Sulfur reacts with oxygen to form sulfur dioxide. The equation for the balanced chemical reaction is...

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.