2) If 28.9g of Lithium Nitride react, how many grams of Magnesium Carbonate are needed to react with it?

Q: 4. Calculate the mass of oxygen produced from the decomposition of 75.0 g of potassium chlorate.…

A: Applying concept of limiting reagent and mole concept.

Q: Convert 0.19 moles of carbon dioxide to grams of CO2.

A: Answer: This is question based on mole concept where each mole of the substance has a fixed mass…

Q: how many grams of potassium nitrate(101.1g/mol) must be heated for decomposition to produce 88.6kg…

A: Molar mass of potassium nitrate = 101.1 g/mol  Mass of produced oxygen = 88.6 kg  Mass of potassium…

Q: How many grams of potassium chlorate are there At the completion of reactions?

A: Given that, the decomposition reaction of potassium chlorate, KClO3. We have to tell the amount of…

Q: limiting reagent

A:

Q: How many grams of Fe can be produced when 10.0g of Al is reacted with 10.0g of Fe2O3?

A: 2Al + Fe2O3 ------------> 2Fe  + Al2O3 This is required Balanced chemical equation.

Q: How many moles of NaOH are required to react completely with 1.00 mole of sulfuric acid?

A: Given that, Moles of sulfuric acid= 1.00 mol  Moles of NaOH= ?

Q: Using the Hoffman apparatus for electrolysis, a chemist decomposes 50.5 g of water into its gaseous…

A:

Q: How many grams of magnesium oxide can be produced by reacting 0.248 g magnesium that is 97.5% pure…

A: Given mass of Magnesium = 0.248g% purity of Magnesium = 97.5%No.of molecules of oxygen = 5.36 x…

Q: A reaction mixture of 18.215 g Na2CO3 and 10.938 g HCl react according to the following balanced…

A:

Q: If 30.0 g of calcium hydroxide reacts with ammonium sulfate, how many molecules of ammonia are…

A: We have 30 g of Calcium hydroxide to be reacted with ammonium sulphate . We have to calculate the…

Q: If 6.7 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

A: Given : Mass of CO2 produced = 6.7 Kg

Q: Through several successive reactions, a chemist uses carbon, CaO, HCl, and H₂O to produce C₆H₄Cl₂…

A:

Q: Consider the following reaction. heat 2 Fe,0,(s) + 3 C(s) 4 Fe(s) + 3 CO, (g) Calculate the number…

A: Given data;  grams of C used = 15.4 g   formula used;   no. Of moles = grams used / molar mass

Q: How many grams of Fe can be produced when 5.80 g of Fe2O3 reacts?

A:

Q: A sealed chamber contains 7.50 g CH4 and 14.5 g O2. The mixture is ignited producing CO2 and H2O.…

A: According to the balanced chemical reaction shown as follows:

Q: Copper(II) carbonate was used by artists as a pigment due to its bright green-blue colour. It can be…

A:

Q: For the reaction represented by the equation Mg + 2HCl ->H2 + MgCl2 the percentage yield of…

A:

Q: Write the balanced chemical equation for the reaction between calcium chloride and sodium carbonate…

A: given Write the balanced chemical equation  the reaction between calcium chloride and sodium…

Q: How many grams of Na are required to react completely with 95.0 grams of chlorine?

A: A reaction between Na and Cl2 that gives NaCl as the product.

Q: If 4.7 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

A:

Q: If 4.1 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

A:

Q: 25 g of silver nitrate are reacted with 10 g of hydrochloric acid. Does all the nitrate and all the…

A: Given data contains, Mass of silver nitrate is 25g. Mass of HCl is 10 g. Molar mass of AgNO3 is…

Q: Consider the following reaction.   2Fe2O3(s)+3C(s)−→−heat4Fe(s)+3CO2(g) Calculate the number of…

A: From balanced reaction two mole of iron oxide react with three mole of carbon

Q: 18.35 g of magnesium are added to 1.69 mol hydrochloric acid. Which is the excess reactant and by…

A: Magnesium reacts with hydrochloric acid to form magnesium chloride. The equation for the balanced…

Q: If 6.8 g of a hydrocarbon that is 83.2% C by mass is burned with O2 to make CO2 and H2O,  what mass…

A:

Q: If 6.5 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

A: Given, Amount of CO2 =6.5 kg =6500 gwe are asked to calculate the number of molecules of CO2 in the…

Q: How many grams of aluminum sulfide are formed if 22.00g of aluminum reacts with sulfur in a…

A: Mass of Al = 22 g Mass of Al2S3 = ?

Q: Write a balanced chemical equation based on the following description: butane gas reacts with oxygen…

A:

Q: For the chemical reaction given, how many grams of sulfuric acid, HS2O4, are needed to react…

A: Given, mass of sodium hydroxide(NaOH) reacted = 72.5 gwe know, molar mass of sodium hydroxide(NaOH)…

Q: magnesium oxide can be produced by heating magnesium metal in the presence of oxygen. When 10.1 g of…

A: Balance chemical equation is defined as which has equal number of atoms or ions in both sides…

Q: Nitrogen (N2)and hydrogen (H2) react to form ammonia(NH3). Consider the mixture of N2 and H2 shown…

A:

Q: How many grams of P2O5P2O5 are formed when 9.51 g 9.51 g  of phosphorus reacts with excess oxygen?…

A:

Q: When 7 grams of chlorine gas and 4 grams of potassium bromide react via a single displacement…

A: The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical…

Q: Consider the following unbalanced chemical reaction:  Br2 + F2 → BrF5 How many grams of fluorine…

A: the balanced equation for given reaction is Br2 + 5F2 → 2BrF5 here 1 mole of Br2 needs 5 moles of F2…

Q: Consider the following reaction:If a container were to have 10 molecules of O2 and 10 molecules of…

A:

Q: fa 88.2 gram charcoal briquette (assume pure carbon) is burned in an excess of oxygen, what mass of…

A: In order to calculate the mass of CO2 produced we have to write the balanced chemical reaction.…

Q: Given the equation: KNO3 → KNO2 + O2 What coefficients are needed to balance the reaction?

A: Balanced reactions are those reaction which is having equal number of atom on reactant and product…

Q: If 2.000 g tungsten is reacted with 0.092 mL of 12.5 M sodium hydroxide and 0.092 mL of water, how…

A: Given: mass of tungsten (W) = 2.000 g Volume of NaOH = 0.092 mL Concentration of NaOH = 12.5 M…

Q: The actual yield of one of the reactions in 43.5g. What was theoretical yield in the laboratory if…

A:

Q: The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane…

A:

Q: If 9.36 moles of sodium are required for a reaction, how many grams should be weighed out?

A: The term mole is generally utilized for the measurement of any specific substance's quantity that is…

Q: oue:- Nitrogen (N₂) gas and hydrogen (th) gas react to form ammonia (NH₂) ges- Suppose you have.…

A: Limiting reactant or limiting reagent is that reactant that is totally consumed when the chemical…

Q: In a double replacement reaction, 1.214 g of tin(ii) fluoride react with sodium phosphate to form a…

A: The percent yield (% yield) of a reaction is mathematically expressed as: %Yield = (Actual…

Q: How many grams of ammonia are formed when 25.0 grams of magnesium nitride and 50.0 grams of water…

A: This is two reactant equation do will be use concept of limiting reagent  Limiting…

Q: How many grams of hydrogen reacted with nitrogen to produce 60.3 grams of ammonia?

A: Given: Mass of ammonia (NH3) = 60.3 g and we know that the molar masses of ammonia and hydrogen gas…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.