The greater the molar heat of vaporization of a liquid, the greater its vapor pressure. Is this true or not? Explain why or why not.

Q: How much heat is released or absorbed in the reaction of 10.0 grams of SiO2 (quartz) with excess hyd...

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Q: n (molecular equation)

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Q: LI. LLI

A: For a molecule to be chiral, it should not have any kind of symmetry i.e. plane of symmetry, centre ...

Q: If a 0.59 M solution of a monoprotic acid HA has a pH of 4.57, what is the Ka value of the acid HA?

A: Concentration of Acid HA = 0.59 M pH = 4.57     ICE Table:                                          ...

Q: Calculate the volume, in milliliters, of 0.170 M NaOH that must be added to 409 mL 0.0463 M 3-(N-Mor...

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Q: (с) Br NH3 + Еxcess (d) `NH2 + Br Sn (е) `NO2 HC1

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Q: Predict the product, if any, of reaction between methyl propanoate and CH3CO2- +Na.

A: When methyl propanoate is treated with the sodium acetate then there will no chemical reaction occur...

Q: How many moles of Cl atoms are there in 65.2 g CHCI3? O 1.64 mol O 3.00 mol O 0.548 mol O 1.09 mol

A: Given that,  mass of CHCl3=65.2 g molar mass of CHCl3=119.38 g mol-1 then, moles of Cl = ?  

Q: In lab you measure out 22.21 grams of C6H12O6 for an experiment. How many mol is this? Give your ans...

A: Molar mass of C6H12O6 = 180.16g/mol  no. of moles (n) = Mass÷molar mass

Q: Question 21 Which of the following compounds is the most nucleophilic? CH30- O (CH3)3COH CH3OH O CH;...

A: we need to determine the most nucleophilic species from the given options

Q: Part 4: Answer the following question.  12. Using the vocabulary terms atom and element appropriate...

A: Atom and element: If we look very precisely then an atom is the part of an element. A particular ele...

Q: Five grams of vinegar solution was given to you to analyze for the pe 0.0036 moles of NHOH was used ...

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Q: Lithium metal reacts with nitrogen gas to form lithium nitride. Identify the balanced reaction that ...

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Q: Consider the following reaction at equilibrium. What effect will increasing the temperature have on ...

A: Fe3O4(s) + CO(g) ---> 3FeO(s) + CO2(g) ∆H° =+  35.9 kj Yes, your answer is correct.  

Q: Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahe...

A: Carbonyl center has electrophilic center hence it can give nucleophilic substitution reaction.  

Q: Question 4 If a reaction has a AG° of -16.0 kJ/mol, will that reaction favor the starting materials ...

A: 4) Case- I When ∆G° < 0 [∆G° = (-)], reaction is spontaneous, (products are more stable than reac...

Q: E H;PO2 HNO3 Sn, HCI A NANO2 B CUCN D H,SO4 HCl

A: Nitration of benzene is aromatic electrophilic substitution reaction where benzene acts as nucleophi...

Q: OH Br

A: 1-> elimination of leaving group. 2-> base can abstract most acidic hydrogen.  

Q: s balanced w

A:

Q: For 5.00x10-2 M aqueous solution of citric acid, whose pH was adjusted to 5.00, calculate the equili...

A: Given, pH of citric acid = 5.00

Q: Silver chromate, AgCrO has a K = 9.010. When added to a 3.14E0 M KCrO(aq) solution, what molar conce...

A: Given: pKsp of Ag2CrO4 = 9.010 Concentration of K2CrO4 = 3.14 M    

Q: What is the ratio of [acid] to [base] of the buffer when pH = pKa. This is referred to as the ‘best ...

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...

Q: In a 0.55 mM aqueous solution of butanoic acid (C,H,CO,H), what is the percentage of butanoic acid t...

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Q: Predict the principal organic product(s) for each of the following

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Q: The solubility of Pb(OH)2 is 78 mg/500. mL. Calculate the Ksp for lead (II) hydroxide

A: We have to calculate the Ksp for given salt.  

Q: The half-equivalence point of a titration occurs half way to the equivalence point, where half of th...

A: Given :  1. Moles of monoprotic acid = 0.540 mole 2. Ka = 1.7 × 10-5   

Q: The major product formed in the following reaction is CO2M TiCl4 H CO2ME CO2ME (a) (b) H. H. CO2ME (...

A: Here given a Diel Alder's reaction. We have to choose the product from the option and to explain.  

Q: A 500.0 mL sample of water is placed in a large container with pure N2 (g) at a pressure of 782 mmHg...

A: Answer:-  Given :- volume of water is 500.0 mL                pressure of N2 gas is 782 mmHg        ...

Q: The chemical structure of a biologically relevant molecule is shown below. Which functional group is...

A: Functional group are atoms or group of atoms joined in a specific manner and give the chemical prope...

Q: Fill up the empty boxes with the correct chemical structures. CN OH Ph

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Q: For two reactions, whose entropies of activation are equal, the activation energies are 50.00 and 60...

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Q: hat was planck's evolution of atomic theory and their models?Explain briefly

A: Atomic theory was heavily influenced by Planck's quantum theory. The discontinuity of the rotation a...

Q: CH,CH CH,0 OCH CH,CH-CH `NH2 CH

A: Given : We have to make product for the given reaction.

Q: A scientist measures the standard enthalpy change for the following reaction to be -1142.2 kJ: 2H2S...

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Q: what are the roles of glutamate and histidine in the catalytic mechanism?

A: Please find the below attachment.

Q: What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl = 35.4...

A:   Molarity (M) : Number of moles of solute present in 1 litre solution is called molarity (M)   math...

Q: The volume of water upon freezing. Therefore, liquid water has, density than solid ice. O expands, l...

A: Option B is correct answer. Expand, higher

Q: Which of the following aqueous solutions are good buffer systems?

A:   Buffer solutions:  A solution which resists it's pH by addition of small amount of Strong acid (or...

Q: Sort the following molecules by electron group geometry by dragging and dropping each symbolic repre...

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Q: For the reaction CaO(s) + CO2(g) CACO (s) %3D 4.1 X 103 ΔΗΟ -42,500 – 0.66 T + 2.155 X 10-3 T² + T F...

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Q: () Complete the following reactions. Show the stereochemistry where applicable. F - Na CN Aceton (le...

A: Since there are more than 3 question in the given problem so as per the Bartley rules and regulation...

Q: True or False: The definition of a mole is an Avogadro's number of a specific entity, such as an ato...

A: Option A. True 

Q: H +

A: Pyridine is a base which can abstract the hydrogen (proton) and form product.  

Q: OH CI NaOH Cl, CI CI CI CI

A: We have to predict the steps of reaction with name.  

Q: Enter your answer in the provided box. Given the same reactant concentrations, the reaction CO(g) + ...

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Q: If E°cell >0, then Group of answer choices ΔG° =0 and K>1. ΔG° 1. ΔG° 0 and K0 and K=1.

A: To solve this problem we will use the concept of electrochemistry and thermodynamics .

Q: This transformation is accompanied by a When heated to above 13.2 degrees Celsius, tin (Sn) transfor...

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Q: What is the coefficient (number) for Na,O when the following reaction is balanced with the lowest po...

A: The correct coefficients of the above balanced equation are given below

Q: What should be the coefficient of BiO3- in order to balance the reaction: Mn2+ +  BiO3- ---H+----> ...

A: Balance the redox reaction under acidic medium... Answer:- coefficient of BiO3- is = 5 

Q: Ellie Mint is trying to determine the reaction mechanism for the following reaction: 2 H2 + 2 NO—>N2...

A: The rate law of a reaction is determined by the slowest step of reaction. The sum of molecularity of...

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.