After performing an experiment on density. You found out that the actual density and the calculated density are not the same. How will you write a results and discussion?

Q: Draw the optical isomers of CH3-CHOH-CHOH-CH3. INDICATE the absolute configuration of each chiral ce...

A: Solution                         Given that  Draw the optical isomers of CH3-CHOH-CHOH-CH3 = ?

Q: Show calculations for making 1X TAE gel running buffer and 1.25% agarose gel for your experiment.

A: Buffer is a solution that tends to maintain pH of the solution when acid or base is added to it. Per...

Q: A chemist measures the amount of chlorine gas produced during an experiment. She finds that 1.35 g o...

A: According to mole concept, one mole of a substance = One gram molecule = GMW = N molecules Further, ...

Q: Given the thermochemical equation 2502(g) + O2(9) - 2503(9), AH'rxn= -198 kJimol, how much heat is e...

A:

Q: Consider the following reactions and associated equilibrium constants: A(g) C(g) K. = 1.700 *104 D(g...

A: Answer: This is the question based on the in depth understanding of equilibrium constant expression.

Q: 5. Consider the phase diagram of Cu-Be shown below. At 1000°C with an overall alloy composition of 1...

A: Given phase diagram:

Q: [N:(g) + 3B12(g) = 2NB1:(g); AH = -103.7 kJ] Consider this reaction. What will 1 happen if pressure ...

A: Consider a reaction, A(g)+B(g)⇌P(g) Let the reaction is happening in a closed container fitted with ...

Q: 2. How would you carry out each of the following syntheses? Each may require more than one step.

A: Please see the attachment

Q: The van der Waals equation of state was designed (by Dutch physicist Johannes van der Waals) to pred...

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Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 3....

A: The mass of water in the water bath is = 3.30 kg The initial temperature of the water bath is = 31.8...

Q: A discovery revealed a parchment fragment that had about 64% as much 14C radioactivity as does plant...

A: Answer: This question is based on the radioactive decay and all the radioactive decay reactions are ...

Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

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Q: What is the average mass, In grams, of one Zn atom? Multiple Choice O 394 x 10259 O 65.39 amu O 1661...

A: Calculation of mass of zinc:

Q: ACT 3 Colligative Properties of Nonelectrolyte Solutions Review Questions 12.39 What are colligative...

A: Solution is made up of two components: solute and solvent. Component which is present in major amoun...

Q: How much heat is required to raise the temperature of 1.5 x 103 g of water from 45'F to 130."F? The ...

A: Given-> Weight of water = 1.5 × 10^3 gm T1= 45°F = 8.3°C T2=130°F = 55.5°C Specific heat of water...

Q: acid FÓRMULA pKe1 pK.2 pK23 pK«4 Он HO-C-CH2-C–CH2–Ĉ–OH 2.94 4.14 5.82 16.0 0=C-OH

A: HA <===> H+ + A-

Q: Tobramycin sulfate is a 7-ion electrolyte and has a molecular weight of 1425.45 g/mol. Assuming that...

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Q: Question 2 Assuming the dopant atom occupies the Ga-site. The doping of GaAs with Si gives (a) N-typ...

A: Semiconductors can be defined as the materials whose conductivity lie between conductors and insulat...

Q: Determine the empirical formula of a compound containing 2.76 g of silicon and 13.9 g of chlorine.

A: Given, mass of Si=2.76 g, molar mass=28 g mol-1 mass of Cl=13.9 g, ,molar mass=13.9 g , molar mass=3...

Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and i...

A: Mass of Al = 118 g Mass of Fe2O3 = 601 g

Q: What quantum numbers specify these subshells? 6s n = 2p n = 5d

A: 1- 6S  2-2p 3-5d   

Q: Predict the products and balance the following reaction: Ag2SO4 (aq) + NaCl(aq)

A:   Products of the above reaction are - Ag2SO4 (s) + NaCl (aq) →  AgCl (s) + Na2SO4 (aq)

Q: If ferric sulfide reacts with oxygen, how many moles of ferric sulfide is required to produce 6g of ...

A: 4FeS +7 O2 = 2 Fe2O3+ 4 SO2

Q: draw all the possible sterisomers of the reaction

A: Carbonyl compound prefer to undergo nucleophilicaddition reaction due to its electrophilic character...

Q: Be sure to answer all parts. Industrially, vanadium metal, which is used in steel alloys, can be obt...

A: First, calculate the moles for both reactants and then use the mol to mol ratio to find out the mole...

Q: 6. Clearly and completely describe a simple, ONE step (a single reagent added) test that would allow...

A: a. NaOH is the single distinguishing reagent for Bi(OH)3 and Al(OH)3. Al(OH)3 reacts with NaOH to fo...

Q: How many moles of cobalt (Co) atoms are there in 2.00 x 10 (2.00 billion) Co atoms? x 10. mol Enter ...

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Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

A:

Q: Calculate the average atomic mass of silver. The percentages denote the relative abundances. Isotope...

A: Given data,Relative abundance of 109Ag=48.16%Relative abundance of 107Ag=51.84%Atomic mass of 109Ag=...

Q: Answer the following with complete solution.

A:

Q: Mass of beaker 50.5g Mass of marble before reaction 3.0g Mass of marble after reaction 1.8g Vo...

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation ...

Q: Applying: Water is liquid at room temperature, the most important reason for this is the? * high boi...

A: Please find your solution below : Since you have asked multiple question, we will solve the first qu...

Q: он OH d. C2H5 e. f. decane-2,2,9-triol 24 diguclonronule clobute 1 2

A: Since you have posted multiple subpart questions, the answer for first three subpart of question is ...

Q: Directions: Consider the given graphs below. Mix and match the graphs with the correct descriptions....

A: Zero order reaction is defined as the reaction in which rate of reaction is independent of concentra...

Q: pH

A:

Q: 15) How many moles of 0 atoms are in 2.5.19 of CaSO,?

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Q: 12.48 Describe how you would use freezing-point depression and osmotic pressure measurements to dete...

A: Colligative properties : These are the properties of any solution , which depends upon the concentra...

Q: What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr203 wi...

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Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

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Q: A chemist measures the amount of nitrogen gas produced during an experiment. He finds that 87.8 g of...

A:

Q: Which of the following processes is exothermic, given the following N2lg) + 202lg) - N204) AH"=9.67 ...

A: Any reaction that gains energy is endothermic while exothermic reaction looses energy. So, for exoth...

Q: CH CH3 ON CH3 HNO, CH HSO, .CH CH NO2

A: ->If electron donating group present then ortho ,para product is major. ->If electron withdraw...

Q: A chemist determines by measurements that 0.035 moles of hydrogen gas participate in a chemical reac...

A: Given,  Moles of hydrogen gas participate = 0.035 mol.  The mass of hydrogen gas participate is:

Q: Write the balanced COMPLETE ionic equation for the reaction when (NH4)3PO4 and Na2SO4 are mixed in a...

A: Write the balanced COMPLETE ionic equation for the reaction----

Q: Click in the answer box to activate the palette. Determine the empirical formula of a compound conta...

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Q: order of elution of the three halocarbons with respect to: a) Molecular size alone b) Boiling point ...

A: Molecular size order :  Carbon tetrachloride (CCl4) > Chloroform (CCl3) > Dichloromethane (CCl...

Q: Calculate: 1) Create a buffer solution of pH= 4.00 from 1M acetic acid (HA)and 1 M sodium acetate (N...

A: Answer: Buffer solution is the type of solution in which addition of small quantity of acid or base ...

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E Where would the bicyclist h...

A: A bicyclist is stopped at a entrance to a valley we have to determine P.E , K.E , T.E

Q: 5. Magnesium hydroxide (Mg(OH)2) has a pKsp value of 11.25. In a solution at pH 10, what is the maxi...

A: Given,  pKsp of Mg(OH)2 = 11.25  pH = 10  What is the maximum Mg2+ concentration in µmol/L = ?  What...

Q: 1. How many molecules of oxygen are in 50.0 g of oxygen?

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.