If 20g of Nitrogen gas and 7.5g of hydrogen gas react to form ammonia, how much ammonia is formed?

Q: use the photo attached please to answer the questions  1. This reaction is... 2.Suppose 56.0g of…

A: If the heat is released reaction is exothermic  and if the heat is being absorbed the reaction is…

Q: Using the model below answer the question. Explain: How can products and reactants have different…

A: Endothermic reactions : These are the reactions in which the energy of the final product is more…

Q: [References) Hydrogen sulfide, H2S, is produced during decomposition of organic matter. When 0.3920…

A: H2S is produced during decomposition of organic matter.When 0.3920 mol H2S burns to produce SO2(gas)…

Q: what would be the final temperature of a mixture of 100g of water at 90 C and 600 g of water at 20 C

A: Use simple concept heat loss by 100g of water = heat gain by 600g of water

Q: Octane (C8H18) is a chemical compound in gasoline. When gasoline burns, the octane reacts with…

A: Octane (C8H18) is a chemical compound in gasoline. When gasoline burns, the octane reacts with…

Q: The reaction of hydrogen and oxygen gases produces 18.0 g of water and releases 68.2 kcal of heat.…

A: Endothermic reactions can be defined as the reaction which involves the intake of heat while…

Q: 1. Consider the combustion of liquid C₅H₈ in oxygen gas to produce carbon dioxide gas and water…

A: #1: Liquid C5H8 undergoes complete oxidation to form CO2(g) and H2O(g) as products. Hence C5H8(l)…

Q: Sodium (Na) metal undergoes a chemical reaction with chlorine (Cl) gas to yield sodium chloride, or…

A: 1 cal = 4.184 J Na + 0.5 Cl2  -----> NaCl + heat Heat released by reaction of 1.00 g of sodium =…

Q: For the decomposition of potassium chlorate into potassium chloride and oxygen gas, how many moles…

A:

Q: How many grams of barium sulfate will be formed from 200.0 g of barium nitrate and 100.0 g of sodium…

A: Given: Mass of barium nitrate = 200.0 g Mass of sodium sulfate = 100.0 g

Q: General Chemistry student performed the “Thermochemistry” lab and obtained the following results:…

A: The balanced reaction is: HCl+NaOH→NaCl+H2O Calculation of no. of mol of HCl: n=Molarity×Volume=2.15…

Q: a food contains 131kcal, 24 grams of carbohydrates. What percentage of kcals are from carbohydrates

A:

Q: Acetylene C2H2 gas is often used in welding torches because of the very high heat produced when it…

A: The balanced chemical equation for the combustion of acetylene can be written as: 2 mol of…

Q: Two substances A and B are combined to form a product C. The formation of the product is…

A:

Q: Acetylene  C2H2  gas is often used in welding torches because of the very high heat produced when…

A:

Q: Acetylene C2H2 gas is often used in welding torches because of the very high heat produced when it…

A: • Acetylene ⇒ C2H2   Oxygen ⇒ O2   Carbon Dioxide ⇒ H2O   Water ⇒ H2O1 C2H2 + 52 O2 → 2 CO2 + 1 H2O2…

Q: A sample is put into 400-mL of water. It releases 58.829 kJ of heat energy when it is combusted.…

A: we define specific heat capacity as the amount of heat  required to  raise the temperature of the…

Q: 1. For this reaction: Al 02-> A1203 a. How many moles of aluminum oxide will be formed from 17 moles…

A: 1) given, _Al + _O2 ➝  _Al2O3 a) moles of Aluminium oxide formed from 17 moles of aluminium reacting…

Q: When a 50-gram piece of aluminum at 100 deg C is placed in water, it loses 735 calories of heat…

A: We have to calculate the heat in joules  and specific heat of Al.

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: Mass of nonanedioic acid  = 0.8568 g Mass of water = 1386 g Initial temperature = 24.32oC Final…

Q: Calculate the number of moles of the given values 1g water

A: Number of moles of a substance can be calculated by dividing the mass by its molar mass.

Q: spend a million dollars a day, how long would it take to spend one mole of dollars?

A: 1 million dollars = 106 dollars are spend in one day 1 mole dollars = 6.022×1023 dollars

Q: It takes 572  kJ  of energy to decompose 2.00  mol  of liquid water. How much energy does it take to…

A:

Q: A food contains 131 kcals, 24 grams carbohydrates.  What  % of kcals are from carbohydrates?

A: Given, Total energy in a food = 131 kcals mass of carbohydrate = 24 g % of kcals are from…

Q: Consider the combustion of liquid C₅H₈ in oxygen gas to produce carbon dioxide gas and water vapor.…

A: According to the policies, we can only answer first 3 subparts of a question at one time. You have…

Q: Acetylene  C2H2  gas is often used in welding torches because of the very high heat produced when…

A: Given: Moles of H2O formed, nH2O = 0.050 molWe know thebalanced reaction of burning of Acetylene…

Q: Refer to the two beakers for question 7. 27°C 45°C The beakers both contain 125 mL of the same…

A:

Q: Acetylene (C2H2) gas is often used in welding torches because of the very high heat produced when it…

A: The reaction of acetylene with oxygen gas that produces carbon dioxide gas and water vapour can be…

Q: For the balanced chemical equation for the reaction of phosphoric acid with calcium hydroxide, using…

A: balance reaction is defined as where the number of reactant and number of product atoms are equal…

Q: 25lb bag of calcium chloride ice melt weighs 11.34kg . How many moles are in CaCl2?

A: 1- First converted the mass in kg to g unit :  We know that, 1kg = 1000g  Mass = ( 11.34kg ) × (…

Q: Consider the combustion of liquid C5H in oxygen gas to produce carbon dioxide gas and water vapor.…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: How many calories 5000 Joules are? show computation

A: There are different units of heat-  1- joule 2- calorie

Q: Acetylene (C,H,2) gas is often used in welding torches because the very high heat produced when it…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: If two substances react and the temperature of the mixture decreases, the reaction is Endothermic…

A:

Q: A 0.25g sample of a pretzel is burned. The heat it gives off is used to heat 50. g of water from 18…

A: Given information: Mass of sample = 0.25 g Mass of water = 50.0 g Initial temperature = 18°C Final…

Q: How many kJ of energy can be released by a banana containing 150 Calories?

A: Calories (Cal) and Kilo-Jules (kJ) are the units of Energy. When any food will be taken by us It…

Q: In Ray Bradbury’s 1953 novelFahrenheit 451, 451°F is said to be the temperature at which books,which…

A: The degree of hotness or coldness of an object is determined by the measurement of temperature. It…

Q: ompute for the amount of ingredients needed to make 10 grams of lassar's paste

A: Lassars paste is a topical ointment used to prevent diaper rash and minor  skin  irritations

Q: A reaction releases 421 kJ of energy. How many kilocalories does this correspond to?

A: Kilocalories (kcal) and kilojoules (kJ) are units of energy. The energy required to raise the…

Q: Acetylene  C2H2  gas is often used in welding torches because of the very high heat produced when…

A: Acetylene gas reacts with oxygen to produce carbon dioxide gas and water vapor. The following…

Q: Interpret the following equation for a chemical reaction using the coefficients given: I(g) + Br2(g)…

A:

Q: 2) The approximate number of Calories C, that an animal needs each day is given by ? = 72?3⁄4 ,…

A: The approximate number of Calories C, that an animal needs each day = 72m3⁄4  cal…

Q: 1. Fill in the best answer for each of the following: a) Reactions that absorb heat are called D)…

A: a) Endothermic reaction:   The chemical reaction in which the reactants absorb heat energy to form…

Q: Computations of calories per mass of food

A: Temperature change of water (°C) 24.27-22.68 = 1.59 °C Heat gained by water (cal). mc∆T= 109.14…

Q: Potassium (K) metal, when reacted with water, yields potassium hydroxide (KOH) and hydrogen gas…

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

Q: A 0.25 g sample of a pretzel is burned. The heat it gives off is used to heat 50. g of water from 18…

A: Given : Mass of pretzel = 0.25 g Mass of water = 50 g Initial temperature of water = 18 oC And final…

Q: If one gallon of gasoline is burned how many grams of water is produced?

A:

Q: A typical candy bar contains 281 food Calories, which is 281 kcal. How many kilojoules are contained…

A: Given that : Energy provided by one candy bar = 281 kcal. We have to calculate the kilojoules of…

Q: What is the temperature in °C of 2 liters of water at 30°C after 500 calories of heat have been…

A: 1) Given data  M = mass of the water = 2 liters = 2000 grams (because the density of water, d =…

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".