molarity

Q: Aqueous sulfuric acid (H, SO,) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium s...

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Q: You were asked to determine the acid content of vinegar and soda samples. You performed a simple aci...

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Q: Calculate the number of oxygen atoms in a 150.0 g sample of dinitrogen tetroxide (N,04). Be sure you...

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Q: How many moles of KCIOS solid must be reacted according to the following balanced chemical reaction ...

A: Recall the reaction, 2KClO3(S) -------> 2KCl(s) + 3O2(g)  ∆H= - 89.4 KJ   

Q: ne mass of

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Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group H H ...

A: Substituents are  an atom or group of atoms that replaces another atom or group of atoms in a molecu...

Q: Given the following, how much heat is evolved when 0.025 m3 of CH6N2 is combusted at STP?

A: Combustion reaction is the reaction of any fuel or substance in presence of oxygen to form carbon di...

Q: A 75.0 mL sample of 0.05 M HCN (pKa = 9.21) is titrated with 0.5 M NAOH. What is [H3O*] in the solut...

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Q: T:E3 → E2

A: In this question we have to prove if the Ker T where T:E3 → E2 by T((x1,x2,x3)) = (x1 + x2, x2 - x3)...

Q: Determine the limiting reactant if 39.55 g Zn reacts with 81.55 g HF. Zn + 2HF → ZNF2 + H2

A: Limiting reagent is that substance which is used up completely in the reaction.

Q: Gaseous butane (CH;(CH,),CH;) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide ...

A: Reaction:-  CH3(CH2)2CH3(g)  + O2(g) ----> CO2(g)  + H2O(g)  Balanced chemical reaction:-  2C4H10...

Q: What role did enthalpy play in the melting process of the crayons? 2. How did the melting process de...

A: 1. Answer - According to the question - Below the melting point, the changes in enthalpy and entropy...

Q: Write T if the statement is true and F it is false.

A: 5)  Typically, if we have pure product from a reaction, percent yields are understandably less than ...

Q: Calculate the value of the equilibrium constant (Keg) for the following reaction: 2 Co (g) + 6 H2 (g...

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Q: The formation of nitrogen monoxide from its elements has an equilibrium which favors reactants: N2 (...

A: Nitrogen reacts with oxygen to form nitrogen oxide. The equation for the balanced chemical reaction ...

Q: For the following two compounds, the given names do not correctly follow IUPAC naming conventions. F...

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Q: what is 100g/L when converted to mg/mL?

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Q: What is the concentration of a solution formed by diluting 210mL of 8.6M NaOH solutions to 0.81L ? D...

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Q: For the following descriptions of molecules, draw the Lewis structure (showing all atoms, lone pairs...

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Q: Gaseous methane (CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (Co,) an...

A: First of all we need to determine the limiting reagent. And then using that we will calculate the th...

Q: Using the half-equation method, balance the following redox half-equations in an acidic solution and...

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Q: 1. what is the solubility of ascorbic acid in water? (include references) 2. How much water is need...

A: Ascorbic acid is also known as hexuronic acid. It exists in D and L stereoisomers. It is one of the ...

Q: _and 2- Gravimetric analysis have two method. 3- In titration method can be calculated of known conc...

A: Molecular Weight: molecular weight can be evaluated from the individual weight of all the elements t...

Q: According to collision theory, which of the following events must occur for a reaction to take place...

A: This question is related to collision theory. Collision theory is based on the assumption that the n...

Q: SUMMA ASS: Phosphorous trichloride and phosphorous pentachloride equilibrate in the presence of mole...

A: Given , Reaction : PCl3(g) + Cl2(g) → PCl5(g).  The equilibrium concentration : PPCl3=0.202 atmPCl2=...

Q: Determine the specific heat capacity of 250.0g of an unknown metal. When the metal absorbs 18.1 kJ o...

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Q: What gas should we use to separate two compounds with very similar boiling points

A: solution is shown below.

Q: Why do you feel thirsty after playing or working outside? Sometimes, you suffer from cramps or heada...

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Q: he pH of a solution containing 0.1 M of a weak acid HA is 6. Calculate Ka for this acid. a)1.0 x 1...

A: Answer - The correct option is (c)1.0 x 10-11

Q: When a reaction has k = 0.533 M–1 s–1 at 327 deg C, it is 2nd order of overall reaction.

A: Given,  At 327 °C  Rate constant = k = 0.533 M–1 s–1   

Q: Bucuse the fallowng chenicel test of Sewage -) ) Nitrogen ) Ftr, geses and och A PH Value Chloaie

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Q: oxygen tank to porduce steam

A: In this question we have to explain that how to calculate the heating surface of an oxygen tank also...

Q: Illustrate with equation the preparation of alkanes by Wurtz synthesis.

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Q: at mass of

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Q: This question is based on the five compounds (A-E) given below. (A) CH,-CH-CH-CHз (B) (C) CHCI=CHBR ...

A: Constitutional isomers are the compounds having same molecular formula but different structural form...

Q: 1.0 x 10 11 moles of HCl are added to 1.0 L of H2O. What is the pH? O 10.0 O 11.0 3.0 o 7.0

A: Moles of HCl = 1.0 × 10^-11 mole Volume of H2O = 1.0 L  

Q: Determine the heat associated with a decrease in the temperature of 375g of water from 31.5°C to 24....

A: Heat associated with decreasing temperature is calculated using the equation,                       ...

Q: (CH,(CH,),CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseo...

A: Limiting reagents:

Q: An ideal gas ina cylinder fitted with a piston expands at constant temperature from a pressure of 7 ...

A: When a gas expands the work will be done by the gas on the surrounding. When the work is done by the...

Q: Gaseous methane (CH,) reacts with gaseous oxygen gas (o,) to produce gaseous carbon dioxide (co.) an...

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Q: Iron (III) can be separated from other metals, such as chromium, by extraction into ether from a str...

A: The ratio of concentrations of a solute (here it is iron) distributed between two phases( organic an...

Q: exothermic Is the reaction exothermic or endothermic? endothermic up Does the temperature of the wat...

A: Work is done by the system, sign will be negative.  Work is done on the system, sign will be positiv...

Q: percent yield of water.

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Q: Calculate the number of nitrogen atoms in a 70.0 g sample of dinitrogen tetroxide (N,0.).

A: Given :- mass of N2O4 = 70.0 g  To calculate :- number of nitrogen atoms 

Q: For items 5 and 6: 5. What is the mole ratio of 3NO2 to 2HNO3? 3NO2 + H2O → 2HNO3 + NO 6. What is th...

A: Stoichiometric relation help in finding the relationship between the quantity of reactant and produc...

Q: Which order of kinetics does reactant 31 follow? First Third Zero Second

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Q: Calculate the mass of ammonia (NH3) that contains a trillion (1.0 × 102) hydrogen atoms. Be sure you...

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Q: Is the following reaction spontaneous at room temperature and pressure? 2A920(s) → 4Ag(s) + O2(g) O ...

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Q: (1] (CH),CCI, AICIh а. [2] KMNO4 b. [1] Br2, hv [2] KOC(CH3)3 [1] C2, FeCl, с. [2] Zn(Hg), HCI NO2 d...

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

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.