Upon heating 125g MgSO4 · 7H2O : (a) How many grams of water can be obtained ?  (b) How many grams of anhydrous compound can be obtained ?

Q: 3) what mass of mathane must be burned in erder to liberate 12,773 kJ of heat ? ()

A: NOTE : Since it is not clearly mentioned whether the heat released is 12.774 KJ or 12773 KJ, hence…

Q: Which of the following would have the lowest boiling point: OA CO2 B. OCS

A: Intermolecular forces refer to the type of interactions which are present within the atoms or…

Q: A generic solid, X, has a molar mass of 61.8 g/mol. In a constant-pressure calorimeter, 18.6 g of X…

A: Answer:- This question is answered by using the simple concept of calorimetry which states heat lost…

Q: The lattice energy of CsF is -744 kJ/mol, whereas that of BaO is -3029 kJ/mol. Explain this large…

A: Given information: Lattice energy of CsF = -744 kJ/mol Lattice energy of BaO = -3029 kJ/mol

Q: 2. Why does the temperature of a mixture of ice and water remain constant during melting and…

A: At melting point of ice, the heat is consumed as 'latent heat' i.e heat used for breaking…

Q: what mass of O2 is required to react to produce 20.0g of H2O?

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: How much heat was absorbed (in J) if a 16.4 g sample of an alloy with a specific heat of 0.840 J/g…

A: Using the equation of specific heat capacity:

Q: The specific heat of silicon is 700J/kg/oC, how much energy is needed to raise a 14g of silicon by…

A: Given, The specific heat capacity of silicon [Cp] = 700J/kg•°C = 0.7 J/(g•°C) Mass of the silicon…

Q: C 4H 8 +6O2 4CO2 + 4H 2OWhat is the stoichiometric ratio of H 2O to O 2? (Include units.)

A: Combustion reaction is the type of reaction of a hydrocarbon with oxygen gas. For hydrocarbons,…

Q: © Oxfo CompoundAIS an organic acia coi alning C, H and O only. A student analyses compound A to find…

A: Molar mass is the mass of 1 mole of any substance. It can be calculated by the following formula.…

Q: 2. Calculate the amount of energy absorbed when 75g ice @ -4C melts to 31 C Did a phase change…

A: Note - Since you have asked multiple questions, we will solve the first one for you. To get any…

Q: How many grams of ammonium chloride were formed if the reaction released 518 kJ of heat

A: Given :-  N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl                                               ∆Hrxn =…

Q: Steam distillation was performed to obtain geraniol (MM = 154.25 g/mol) from dried rose petals. At…

A: According to Dalton's law of partial pressures,The total pressure of the solution,…

Q: The addition of 121  g potassium fluoride to 591  mL of water (d = 1.00 g/mL) causes the temperature…

A: The mass of solution is calculated as shown,

Q: What volume of benzene (C6H6, d= 0.88 g/mL, molar mass = 78.11 g/mol) is required to produce 1.5 x…

A: Combustion reaction of benzene  2C6H6 + 15O2 ....> 12CO2 + 6H2O It is exothermic reaction.  dH =…

Q: The highest specific heat among the species is for O a. Sulphur Dioxide O b. Oleum O c. Hydrogen…

A: Definition of specific heat : Specific heat is the quantity of heat required by any substance to…

Q: What is it called when the final temperature of your Solid (Tin) and the water are equal?

A:

Q: How many grams of CO2CO2 are produced when C3H8C3H8 is combusted in oxygen and 298.0 kJ of heat are…

A: When an atom combines with oxygen which produce carbon dioxide and water is known as combustion…

Q: How many grams of CoHe must decompose according to the following chemical equation to transfer 430|…

A: Heat of reaction is defined as difference of energy of product  and energy of Reactant. If heat of…

Q: obtained

A: The first step is to calculate the molar masses of the compounds as it is shown below.

Q: Calculate the theoretical percentage of water in Cu2SO4·2H2O (Molar mass of the hydrate is 259.19…

A:

Q: Write the balanced chemical equation for the Haber–Bosch process (i.e., the combination of nitrogen…

A: Haber–Bosch process: It is the process of production of ammonia from nitrogen and hydrogen.…

Q: How many moles of H2O2 are produced in the production of hydrogen peroxide when 13 grams of oxygen…

A:

Q: give the balanced equation for the combustion of liquid hexane (C6H14) in the presence of oxygen gas

A: In a chemical reaction; the substance which involves in conversion is said to be reactant whereas…

Q: A generic solid, X, has a molar mass of 61.8 g/mol. In a constant-pressure calorimeter, 18.6 g of X…

A:

Q: What is the mass percent of water in NiSO₄･4 H₂O?

A: Mass of water= 18×4=72gm Total mass of compund= 226gm Mass percent= mass of H2O×100÷total mass of…

Q: How many kilojoules are needed to vaporize 10.0 g of H2O(1)?

A: Number of moles of water is determined as follows, No.of mol= Mass/Molar mass = 10.0 g/18.02 g.mol =…

Q: 3. If 124 kJ of heat is absorbed in a reaction that forms nitric oxide from nitrogen and oxygen,…

A: 3. Sol :-  Given,  Amount of heat absorbed = 124 KJ  Reaction between N2 and O2 takes place to gives…

Q: Pls help ASAP

A: Let velocity of one object be V1 And mass be m1 . Velocity of other object be V2 and mass be m2  So…

Q: Write a balanced chemical reaction for the condensationreaction between H3PO4 molecules to form…

A: Phosphoric acid(H3PO4) undergoes condensation reaction to form H5P3O10 as shown below. 3H3PO4     →…

Q: A) a typical home water heater contains 40 gallons of water. How much heat (in kJ) is required to…

A:

Q: A 10.0-g sample of C2H5OH is burned completely in air. How many moles of H2O are formed?

A: The molar mass of the ethanol is 46 g/mol. The number of moles in 10.0 g of a sample of ethanol is…

Q: How many molecules of hydrogen gas are required to produce 15.0 g of water?

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: How much potassium nitrate has to dissolve in water to absorb 117 kJ of heat?

A:

Q: How much heat is released during the combustion of 1.24 kg of C5H12?

A: Given: 1.24 kg of C5H12 The conversion of kg into g is as follows. 1 kg=1000 g1.24 kg=1240 g

Q: A 27 g aluminum foil pan is used to roast vegetables.  The pan is put into a cold oven at 22 oC .…

A: The heat released or absorbed (q) by a substance when the temperature of that substance is raised is…

Q: How much energy (in kJ) is released by the combustionof 1.00 mol of C8H18?

A: The enthalpy change (∆H0) associated with a chemical reaction is furnished as the amount of energy…

Q: Where does the energy come from to evaporate the estimated 425,000 km3 of water that annually leaves…

A:

Q: How many grams of oxygen are required to completely burn 4.2 g of C3H8? [assume complete combustion]

A: Propane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: How many grams of water will be lost when 8.000 g of YBr3 .9H2O is heated?

A: The question is based on the concept of stoichiometry of reaction. first we write the balance…

Q: Ozone 1O32 is formed in the earth’s upper atmosphere by the action of solar radiation on oxygen…

A: The ozone–oxygen cycle is the process by which ozone is continually regenerated in Earth's…

Q: How many kilojoules released from 50 g of water when the temperature decrease from 20 °C to 5 °C?

A: The amount of heat relesed on changing temperature of water is- Heat energy = mCΔT where, m = mass…

Q: Q.2. Write a balanced chemical equation to show how octane can be produced by the cracking of…

A: Cracking refers to the process of breaking up of large hydrocarbon molecules into smaller and more…

Q: What mass of water is produced from the complete combustion of 2.40×10−3 g of methane?

A: The mass of water produced from the complete combustion of 2.40×10−3 g of methane is calculated as,

Q: 4. The Haber process for the synthesis of ammonia from nitrogen and hydrogen gases in an exothermic…

A: When equilibrium is disturbed by changing condition, then system shifts towards the direction where…

Q: Theoritical and experimental values of lattice energies of a compound may differ  Explain why the…

A: A key reason is that some ionic compounds have covalent character - they are not perfectly ionic…

Q: он heat 5) он H,CO NaH 6) CN CH, r NH2 2 CH,I 7)

A: Introduction Functional group interconversion (FGI) In the organic reaction the process of writing…

Q: What quantity of heat (in kJ) is absorbed in the process of making 0.957 mol of CF from the…

A: Given :- C(s) + 2F2(g)→ CF4(g)  ∆H° = 141.3 kJ/mol  To calculate :-  amount of heat absorbed for the…

Q: _C3HS + _O2 →_CO2 + _H2O 4. a. Balance the reaction b. What is the reaction type? C. What is the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Joseph Priestly prepared oxygen in 1774 by heating red mercury(II) oxide with sunlight focused…

A: The amount of heat is required to decompose exactly 1 mole of red HgO(s) to Hg(l) and O2(g) under…