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Chemistry

11/30/23

Standard enthalpy change

Calculate the standard enthalpy change for the reaction at 25 °C. Standard enthalpy of formation values can be found in this list of thermodynamic properties.H2O(g)+ C(graphite)(s) —> H2(g)+CO(g)

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Chemistry

11/30/23

The heater used in a 4.36m x 3.3m x 3.05 m dorm room uses the combustion of natural gas (primarily methane gas) to produce the heat required to increase the temperature of the air in the dorm room.... more

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Chemistry

11/30/23

Classify each chemical reaction as endothermic or exothermic.

Classify the following:2CO2(g)+heat —> 2CO(g)+O2(g)2H2(g)+O2(g) —> 2H2O(I)+heatN2(g)+2O2(g)+heat —> 2NO2(g)2C2H2(g)+5O2(g) —> 4CO2(g)+2H2O(I)+heat

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Chemistry

11/30/23

Classify the processes as endothermic or exothermic.

Classify the following:Baking a cakeice meltingthe chemical reaction inside an instant cold packwater condensing on a surfacea car using gasoline

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Chemistry

11/29/23

Greatly need some assistance

In a particular redox reaction, BrO- is oxidized to BrO3- and Cu2+ is reduced to Cu+. Complete and balance the equation for this reaction in acidic solution. Phases are optional.

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Chemistry

11/28/23

How many milliters of 0.258 M NaOH are required to completely neutralize 2.00 g of acetic acid HC2H3O2?

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Chemistry

11/28/23

whats todays topic?

QUESTION WRITING TIPS Keep your questions short and to the point Check for grammar or spelling errors Phrase it like a question QUESTION WRITING TIPS Keep your questions short and to the... more

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Chemistry

11/28/23

The normal boiling point of a liquid is 282 °C. At what temperature (in °C) would the vapor pressure be 0.370 atm? (∆Hvap = 28.5 kJ/mol)

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Chemistry

11/27/23

Write the balanced equation for the redox reaction corresponding to the charging process.

The half-reactions and their associated standard reduction potentials in nickel-cadmium batteries areNiO(OH)(s) + H2O (l)+ e- Ni(OH)2 (s)+ OH- (aq) E° = 1.32 VCd (OH)2 + 2e- Cd (s) + 2OH- (aq) ... more

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Chemistry

11/27/23

Delta H of soln

When a 3.00g sample of KBr is dissolved in water a calorimeter that has a total heat capacity of 1.32 kJ • K^-1, the temperature decreases by 0.380 K. Calculate the molar heat of solution of KBr.

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Chemistry

11/27/23

what is Delta H for this reaction (per mole H2O produced)?

In a constant-pressure calorimeter, 70.0 mL of 0.330 M Ba(OH)2 was added to 70.0 mL of 0.660 M HCl.The reaction caused the temperature of the solution to rise from 23.84 C to 28.34 C. If the... more

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Chemistry

11/27/23

Heat energy full question is in description

How much heat energy is required to convert 88.5 g of solid ethanol at −114.5°C to gasesous ethanol at 167.1 C The molar heat of fusion of ethanol is 4.60 kJ/mol and its molar heat of vaporization... more

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Chemistry

11/27/23

specific heat of material

An experiment is performed on an unknown material and produces a heat curve. The temperature of the material is shown as a function of heat added.In the... more

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Chemistry

11/27/23

Final temperature of water

The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all of the energy obtained from burning 1.27 lb of ethane (fuel value is 11.36) is... more

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Chemistry

11/27/23

Barium Azide is composed of 62.04% Ba and 37.96% N. The azide ion has a net charge of 1-

a) Determine the chemical formula of the azide ion b) Write three resonance structures of the azide ion

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Chemistry Math Science

11/27/23

What is the copper mass ?

A Block of copper has an initial temperature of 65.4C it’s immersed in a beaker containing 95.7 g of H2O. At 22.7C .Once the heat transfer is complete the temperature and block measures 24.2 C.... more

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Chemistry

11/27/23

Chemistry questions

Sodium azide, NaN3, undergoes a decomposition reaction to produce metallic sodium and nitrogen gas. If 43.2 g sodium azide decomposes in the reaction conducted at 792 torr pressure and 26.2 oC,... more

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Chemistry Science Biology Calculus

11/26/23

Magnetic field question

The magnetic field 40.0 cm away from a long, straight wire carrying current 2.00 A is 1.00 μT. (a) At what distance is it 0.100 μT? (b) at one instant, the two conductors in a long household... more

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Chemistry Math Biology Physics

11/26/23

Physics 2 Homework Question

Consider an electron near the Earth’s equator. In which direction does it tend to deflect if its velocity is (a) directed downward? (b) directed northward? (c) directed southeastward?

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Chemistry Chemical Engineering

11/24/23

Operando Transmission IR - Method to measure active surface area of a catalyst while it is under Reaction.

I am looking to get this question answered:SSITKA: Perhaps The most accurate method to measure the number of sites because the actual number under reaction conditions can be probed.The method works... more

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Chemistry

11/23/23

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Chemistry

11/23/23

What is the definition of a neutralization reaction in chemistry?

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Chemistry

11/23/23

How do I figure out the complete nuclear equation for the bombardent of a 9Be atom with an a particle to yield 12B

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Chemistry

11/23/23

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Chemistry

11/23/23

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Standard enthalpy change

Mass of methane

Classify each chemical reaction as endothermic or exothermic.

Classify the processes as endothermic or exothermic.

Greatly need some assistance

How many milliters of 0.258 M NaOH are required to completely neutralize 2.00 g of acetic acid HC2H3O2?

whats todays topic?

The normal boiling point of a liquid is 282 °C. At what temperature (in °C) would the vapor pressure be 0.370 atm? (∆Hvap = 28.5 kJ/mol)

Write the balanced equation for the redox reaction corresponding to the charging process.

Delta H of soln

what is Delta H for this reaction (per mole H2O produced)?

Heat energy full question is in description

specific heat of material

Final temperature of water

Barium Azide is composed of 62.04% Ba and 37.96% N. The azide ion has a net charge of 1-

What is the copper mass ?

Chemistry questions

Magnetic field question

Physics 2 Homework Question

Operando Transmission IR - Method to measure active surface area of a catalyst while it is under Reaction.

Brandflex life customer care number,,8670518629

What is the definition of a neutralization reaction in chemistry?

How do I figure out the complete nuclear equation for the bombardent of a 9Be atom with an a particle to yield 12B

Kurtionsale1 myshopify com customer care number,,8670518629

Kurtionsale1 myshopify com customer care number,,8670518629

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