molar mass

Q: DIRECTIONS: FILL THE BLANKS WITH THE CORRECT ANSWER.  The critical age under which sunscreens shoul...

A: Fill the blank with the correct answers are given below.

Q: Problem Solving Write all the steps for the statistical testing. The homogeneity of the chloride lev...

A: Answer is given below

Q: Dane is attempting to make experiments on her manufactured apple ciders. Lab analysis has shown that...

A: Given,  Mass percentage of C6H12O6 = 35%  Molal freezing point constant of H2O = kf = 1.86 oC/m Calc...

Q: For each formula, fill in the eight items listed in the instructions. The Lewis models (at least) sh...

A: Answer is attached below

Q: A certain radiation has a wavelength of 574 nm. What is the energy, in joules, of (A) one photon? Yo...

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Q: Determine the oxidation number of the Carbon and Oxygen differently in each of the given compounds. ...

A: Oxidation number can be defined as the  number of electrons gained or lost by an atom, It is also kn...

Q: Choose two different nucleotides and draw the reaction mechanism (with curly arrows) that takes plac...

A: Please find the below attachments.

Q: 4. 500 mL of 0.75 N of K2Cr207 from a pure solid reagent if it follows the following half reaction -...

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Q: Write the rate law for the reverse reaction: 2 NO = N202

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: 1. Complete the table below Chemical Name Chemical Formula Structural formula Condensed Formula Line...

A: Definition of condensed formula:  The condensed formula is the formula where we use symbols of atoms...

Q: What is the molecular formula of the following structure? (CH3CH2)3COH O A. C7H160 O B. C7H140 O C. ...

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Q: Photosynthesis in plants converts carbon dioxide and water into glucose and oxygen. Calculate the ∆H...

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Q: What is that the entropy change of the universe (J/mol-K) when the entropy change of the system is 7...

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Q: You are part of a group of pharmaceutical chemists who are currently characterizing potential lead c...

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Q: When the following equation is balanced properly under basic conditions, what are the coefficients o...

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Q: Be sure to answer all parts. Calculate the percentage composition by mass of each of the elements in...

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Q: You want to prepare 500.0 mL of 1.000 M KNO, at 20 C, but the lab (and water) temperature is 28 "C a...

A: We have to find out how many grams of KNO3 should be dissolved at 28℃ temperature to get the below s...

Q: Friedel-Crafts

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Q: Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate ...

A: Rate Constant = 0.0028M/s Volume = 4L  

Q: Use the graph below as reference: What is the boiling point of a solution of 50% toluene? Temperatu...

A: Answer is given below :

Q: A o bond arises from the straight-on overlap of two atomic Sigma Bonding orbitals. The electron dens...

A: Hybridisation is defined as mixing of orbital having different energy so as to rehybridize to form n...

Q: Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.1 m/s and a...

A: Given, mass of cart 1 =0.45 kg speed of cart 1 = 1.1 m/s mass of cart 2 = 0.75 kg

Q: All of the following are representations for 2-methylbutane, EXCEPT? HH H,CH,C-CH, CH, н-с-с-н H,C- ...

A: In butane  parent chain contains no of carbon is 4...  

Q: How many grams of KBrO3, 167.0 g/mol, are required to prepare 0.625 moles of Br2 according to the ba...

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Q: When a silver and a saturated calomel electrodes are inserted in a solution of 0.10 M Ag(NH3)2", the...

A: Option A is correct answer.   It is nearest to our answer I. e. 0.113 molar. 

Q: NHCCES IV. CH3 V.

A: Electron donating groups on aromatic ring increases the rate of nitration.

Q: Using the equation below, calculate the flux of molecules to the surface at a base pressure of 5 x 1...

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Q: How many grams of Co are there in a sample of Co that contains 9.57×1023 atoms? grams

A: 1 mole of any atom corresponds to Avagadro's number i.e. 6.023 x 1023 atoms. Therefore, Cobalt (Co) ...

Q: CH,CH,CH,CH3 CH;CH,CHCCH,CH,CH3 ČH,CH3

A: Given compound is : Write the IUPAC name of this compound = ?

Q: 2. A 4.5491 g sample of a sulfur containing compound is analyzed by precipitating the BaSO4. If 1.39...

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Q: Liquids and gases take the following characteristic(s) of their containers. Which is/are it? volume...

A: Both Gas and liquid molecules have large intermolecular separation.  Among liquid and gas molecules,...

Q: Determine the structure of a compound with the formula C11H15ClO2 based on the 1H NMR spectrum belo...

A: proton- NMR and  13C-  NMR

Q: spontaneous

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Q: Imagine you have a closed vessel with seawater and you add 10µmol/kg of CaCO3. What happens? (select...

A: General properties of CaCO3

Q: An analytical chemist is titrating 164.9 mL of a 0.3400M solution of propylamine (C,H,NH,) with a o....

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Q: Which of the following DOES NOT belong to the group? nicotine caffeine tannins O morphine

A: Alkaloids can be defined as the naturally occurring organic compounds that contain  nitrogen bases. ...

Q: Look at the table below: Substance pH Apple Juice 3.37 Apricots, pureed 3.83 Cherries, California 4....

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

Q: How many significant figures in the following numbers?

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Q: Explain how to obtain larger particles based on the relative supersaturation

A: This explained by von weirmarn equation...

Q: e IUPAC name

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Q: At a certain temperature this reaction follows second-order kinetics with a rate constant of 175.M's...

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Q: what is the volume of alcohol in a 500.0 mL of wine that contains 12.0 percent of alcohol by volume?...

A: Given,  Volume of the wine = 500 mL  Volume percent of alcohol in wine = 12%  Find the volume of the...

Q: Which will have the highest Rf value from a normal phase TLC? O chlorophyll O B-carotene O Pheophyti...

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Q: Draw the following: 1. The chair structures of the most stable molecule below. (Choose the most stab...

A: This question belong to stereochemistry organic chemistry. We will decide the stability of 2 structu...

Q: 5. What is the pCa of a 50ppm Ca(NO3)2

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Q: DRAW THE SOLID WEDGE AND DASH FORMULA OF: HCN (TAKE NOTE OF THE BONDS) DRAW THE LINE ANGLE FORMULA...

A: A chiral molecule can be represented in wedge-dash system using wedge for above the plane ,dash for ...

Q: Determine the magnitude and direction of the electric field at a point 0.5 m to the left of a point ...

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Q: Part A Consider the reaction: CO(g) + 2H2(g) = CH;OH(9) What is the value of the equilibrium constan...

A: Determine equilibrium constant of the given reaction ----

Q: What is the molarity of Na+ in a solution that contains 75.9 ppm of Na2CO3? (MM=105.99 g/mol)   7.1...

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Q: ny nickel atoms a MM (P) = 30 97

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".