Questions LLC
Login
or
Sign Up
Ask a New Question
Thermochemistry
Page 3
Questions (383)
If the molar enthalpy of combustion of ethane is -1.56 MJ/mol, how much heat is
produced in the burning of; a) 5.0 mol of ethane
2 answers
asked by
HAte Chemistry :(
1,221 views
Calculate Delta H for the reaction CH4(g)+NH3(g)-->HCN(g)+3H2(g) given,
N2(g)+3H2(g)->2NH3(g) DeltaH=-91.8kj C(s)+2H2(g)->CH3(g)
3 answers
asked by
James
4,973 views
Calculate the DHof for the following reaction under standard state conditions:
2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) +
4 answers
asked by
Josh
1,392 views
Given the following thermochemical equations,
NO(g) + (1/2) Cl2(g) --> NOCl(g) -37.78 kJ (per mol NOCl) NO(g) + (1/2) O2(g) -->
3 answers
asked by
abby
879 views
A sample of 2.08 grams of Z is dissolved into
500 grams of water which is in a styrofoam coffee cup. The temperature is
3 answers
asked by
John
687 views
The enthalpy of solution of KBr in water is about +198 kJ/mol. Nevertheless, the solubility of KBr in water is relatively high.
3 answers
asked by
Samantha
1,518 views
Consider the following thermochemical equation for the combustion of acetone (C3H6O), the main ingredient in nail polish
4 answers
asked by
Ashley
2,881 views
If heat of reaction, Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) , is - 544 kJ/mol, heat of reaction, CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) ,
3 answers
asked by
nicholas
2,193 views
The reaction of 1 Mol of iron metal with 3 Mol aqueous HCI produces 1.5 mol H2 gas, 1 mol aqueous FeCI3, and 87.9 kj of heat.
5 answers
asked by
Sarah
688 views
From the enthalpies of reaction
2C(s)+O2(g)�¨2CO(g)ƒ¢H=−221.0kJ 2C(s)+O2(g)+4H2(g)�¨2CH3OH(g)ƒ¢H=−402.4kJ calculate
3 answers
asked by
ryno
1,968 views
For a particular isomer of C8H18, the following reaction produces 5104.1 kJ of heat per mole of C8H18(g) consumed, under
4 answers
asked by
Tiffany
1,381 views
A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide.
2 HgO(s) 2 Hg(l) + O2(g) Hrxn =
3 answers
asked by
mara
1,163 views
Given the following thermochemical equation:
NO2 (g) + O2 (g) → NO (g) + O3 (g) ΔH = - 212 kJ Which has more enthalpy, the
3 answers
asked by
Ann
892 views
1N2(g) reacts with H2(g) to form NH3(g), gaseous ammonia.
Show balanced thermochemical equations based on both one mole and two
3 answers
asked by
Feather
735 views
Calculate the delta H for the reaction :
2H3BO3(aq) reacts with B2O3(solid) + 3H2O
4 answers
asked by
Logan
1,220 views
Propane (C3H8) burns according to the following balanced equation:
C3H8(g)+5O2(g)→3CO2(g)+4H2O(g) Calculate ΔH∘rxn for this
4 answers
asked by
Anonymous
2,730 views
Calcium oxide and carbon are reacted to produce carbon monoxide and calcium carbide CaC2. When one mole of calcium carbide is
3 answers
asked by
Jill
1,256 views
what is the magnitude and sign of the molar heat of vaporization of butane
3 answers
asked by
Kendra
798 views
A scientist measures the standard enthalpy change for the following reaction to be -2923.0 kJ :
2C2H6(g) + 7 O2(g) 4CO2(g) + 6
4 answers
asked by
Anonymous
3,043 views
Calculate the value of DHo for the reaction 2 CH4 (g) -> C2H6 (g) + H2 (g) given the following thermochemical equations:
C2H2 (g)
4 answers
asked by
timmy
1,147 views
Use the thermochemical equations shown below to determine
the enthalpy (kJ) for the reaction: H2SO3(l)=>H2S(g) + 3/2O2(g)
5 answers
asked by
anonymous
2,212 views
1. The bombardier beetle uses an explosive discharge as a defensive measure. The chemical reaction involved is the oxidation of
4 answers
asked by
Mahir
2,744 views
Given the following thermochemical equation, calculate the heat (in kJ) involved in decomposing 18.0 g of
water to give one mole
5 answers
asked by
Zandria
994 views
Determine the amount of heat (in kJ) given off when 2.07 multiplied by 104 g of ammonia are produced according to the following
4 answers
asked by
jamie
836 views
The combustion reaction of propane (C3H8), a gas used for heating, is shown in the following thermochemical equation: C3H8+ 502
3 answers
asked by
Nabi
133 views
Given the following reaction that has an enthalpy of +128 kJ.
CH3OH(l) ---> CO(g) + 2H2(g) How many kJ of heat are consumed when
3 answers
asked by
Cerina
567 views
What is ∆H0 for this reaction?
Br2(g) → Br2(l) (∆Hf0 Br2(g) = 30.91 kJ/mol) 1.546 × 101 kJ –1.546 × 101 kJ 3.091 × 101
3 answers
asked by
Anonymous
2,101 views
When 4.76 g of a solid mixture composed of NH4Cl and CaCl2 was dissolved in 100.0 mL of water, the temperature of the water rose
4 answers
asked by
Anonymous
3,174 views
Calculate ΔHrxn for the following reaction:
C(s)+H2O(g)→CO(g)+H2(g) Use the following reactions and given ΔH values:
3 answers
asked by
Q
1,191 views
Dissolving calcium hydroxide (∆Hsoln = -16.2 KJ/mol) in water is an exothermic process. How much lithium hydroxide (∆Hsoln =
4 answers
asked by
Ka_Chin
2,425 views
When 2.85 g of HC7H5O2 (molar mass = 122.12 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter changed
3 answers
asked by
Anonymous
2,119 views
The thermochemical equation which is associated with ∆H°f, the standard enthalpy of formation, for urea, CO(NH2)2 (s), is:
CO
4 answers
asked by
Miranda
2,055 views
Given the following thermochemical data:
H2O(l)+2AgNO3(aq) ¡æ 2HNO3(aq)+Ag2O(s) ¥ÄH = 44.8 kJ 2Ag(s)+¨öO2(g) ¡æ Ag2O(s)
3 answers
asked by
Help?
856 views
When a 3.10g sample of liquid octane (C8H18) is burned in a bomb calorimeter, the temperature of the calorimeter rises by
4 answers
asked by
annoymous
3,573 views
The complete combustion of salicylic acid releases 21.90 kJ of energy per gram of salicylic acid. In a particular bomb
3 answers
asked by
korko
3,009 views
Using standard enthalpies information, calculate the standard enthalpy change for this reaction.
a)(thermite reaction) 2Al(s) +
3 answers
asked by
Dan
1,275 views
What is the Molar Enthalpy of Neutralization in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base)
2 answers
asked by
BRANDIE
617 views
The heat of solution of potassium acetate in water is -15.3 ,What will be the final temperature when 0.132 is dissolved in 550
3 answers
asked by
Anonymous
685 views
For ethanol, C2H5OH, which is mixed with gasoline to make the fuel gasohol, H°f = -277.63 kJ/mol. Based upon data in Table 6.2,
3 answers
asked by
A
1,115 views
Using enthalpies of formation, calculate the quantity of heat produced when 14.0 g of propane is completely combusted in air
2 answers
asked by
John
864 views
For the reaction:
2H+(aq) + CO3-2(aq) --> CO2(g) + H2O(l) A. Calculate the deltaHºrxn for the reaction. Given deltaHºf for
3 answers
asked by
Millie
3,154 views
1. How much heat is absorbed when 63.7g H(small 2)O [water](l) at 100 degrees C and 101.3 kPa is converted to steam at 100
3 answers
asked by
Anonymous
1,584 views
Given the thermochemical equation SO2(g) + ½ O2(g) ---> SO3 (g) DH = -99.1 kJ
calculate the enthalpy change (DH) when 89.6 g of
2 answers
asked by
paneet
632 views
use thermochemical equations shown below to determine enthalpy for the reaction:
H2CO3-->H2O+CO2 1) H2CO3 --> H2CO + O2 H; 224 KJ
3 answers
asked by
Brittany
1,136 views
Determine the enthalpy for the partial combustion of methane to carbon monoxide-
2CH4(g) + 3O2(g) = 2CO(g) + 4H2O(l) from change
3 answers
asked by
Anna
1,692 views
consider the following thermochemical equation for the combustion of acetone
C3H6O(l)+4O2(g)---->3CO2(g)+3H2O(g) delta H
4 answers
asked by
natash
1,603 views
Analyze the figure shown of a salt (sodium chloride) dissociating in a solvent
(water). Is the overall change in enthalpy
1 answer
asked anonymously
55 views
. The compound PCIsd) can be burned in Cla to give PCIs. A total 46.5 kJ of energy is liberated in the process when 0.500 mole
1 answer
asked by
kaelyn
61 views
Consider the following reaction: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
0.103 g of Zn is combined with enough HCl to make 50.0 mL
2 answers
asked by
Kelly
1,519 views
I got an answer of -1.34 x 10^3 KJ/mol.
A 10.00 mL aliquot of 0.100 M NaOH is added to 15.00 mL of 0.100M HCl in a coffee cup
1 answer
asked by
Nevaeh
612 views
Pages
1
2
3
4
5
6
7
8
Parent Categories (9)
Acids and Bases
Chemical Reactions
Chemistry
Chemistry Knowledge
Physical Chemistry
Physics
Reactions and Energy
Stoichiometry
Thermodynamics