Laser_3

The following galvanic cell has a potential of 1.214 V at 25 ∘C: ...

The following galvanic cell has a potential of 1.214 V at 25 ∘C: ...

The following galvanic cell has a potential of 1.214 V at 25 ∘C:
Hg(l)|Hg2Br2(s)|Br−(0.10M)||MnO4−(0.10M),Mn2+(0.10M),H+(0.10M)|Pt(s)
Calculate the value of Ksp for Hg2Br2 at 25 ∘C.

12

pcp98   2627   19 Replies

jiminsmocheek

The zincblende structure of ZnS has the relatively large sulfide ions arranged at the lattice points ...

The zincblende structure of ZnS has the relatively large sulfide ions arranged at the lattice points ...

[html]The zincblende structure of ZnS has the relatively large sulfide ions arranged at the lattice points of a face-centered cubic structure. The edge length of this cubic unit cell is 540.9 pm. Determine the density of zincblende

MrsSmitty   57   1 Reply

shichihenge7

The vapor pressure of ethanol is 400. mmHg at 63.5C. Its molar heat of vaporization is 39.3 kJ/mol. ...

The vapor pressure of ethanol is 400. mmHg at 63.5C. Its molar heat of vaporization is 39.3 kJ/mol. ...

[html]The vapor pressure of ethanol is 400. mmHg at 63.5°C. Its molar heat of vaporization is 39.3 kJ/mol. What is the  vapor pressure of ethanol, in mmHg, at 34.9°C? (R = 8.314 J/K • mol)

▸ 109 mmHg

▸ 220 mmHg

▸ 366 mmHg

▸ 376 mmHg

bigben0007   53   1 Reply

overlandtrail

The triple point of iodine is at 0.12 atm and 115C. Thus, liquid I2

The triple point of iodine is at 0.12 atm and 115C. Thus, liquid I2

[html]The triple point of iodine is at 0.12 atm and 115°C. Thus, liquid I2

▸ is more dense than I2(s).

▸ cannot exist above 115°C.

▸ is liquid at room temperature.

▸ cannot have a vapor pressure less than 91 to

whitywhite11   47   1 Reply

scmhack

The number of atoms in a face-centered cubic unit cell is

The number of atoms in a face-centered cubic unit cell is

The number of atoms in a face-centered cubic unit cell is

▸ 1.

▸ 2.

▸ 3.

▸ 4.

▸ 8.

edehghany   38   1 Reply

lpants

The number of atoms in a body-centered cubic unit cell is

The number of atoms in a body-centered cubic unit cell is

The number of atoms in a body-centered cubic unit cell is

▸ 1.

▸ 2.

▸ 3.

▸ 4.

▸ 8.

marcsleiman   38   1 Reply

kimtran

The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is ...

The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is ...

[html]The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is 68.73°C. What is the vapor pressure of hexane at 25°C? ( R = 8.314 J/K • mol)

▸ 171 torr

▸ 4.44 torr

▸ 117 torr

billafin   40   1 Reply

schoolkidchuck

The molar enthalpy of vaporization of boron tribromide is 30.5 kJ/mol, and its normal boiling point ...

The molar enthalpy of vaporization of boron tribromide is 30.5 kJ/mol, and its normal boiling point ...

[html]The molar enthalpy of vaporization of boron tribromide is 30.5 kJ/mol, and its normal boiling point is 91°C. What is the vapor pressure of BBr3 at 20.°C? ( R = 8.314 J/K • mol)

▸ 11.5 torr

▸ 659 torr

akempire   33   1 Reply

iammtz

The location that indicates conditions under which two phases can exist in equilibrium is called the

The location that indicates conditions under which two phases can exist in equilibrium is called the

The location that indicates conditions under which two phases can exist in equilibrium is called the

▸ triple point.

▸ critical point.

▸ phase boundary.

▸ phase diagram.

▸ transition state.

hellchicken   29   1 Reply

jjwatson

The energy required to increase the surface of a liquid per unit area is called the

The energy required to increase the surface of a liquid per unit area is called the

The energy required to increase the surface of a liquid per unit area is called the

▸ capillary action.

▸ surface tension.

▸ viscosity.

▸ cohesion.

▸ specific elasticity.

minaebied   29   1 Reply

angfucious

The atomic planes in a graphite crystal are separated by 335 pm. At what angle would you find the ...

The atomic planes in a graphite crystal are separated by 335 pm. At what angle would you find the ...

[html]The atomic planes in a graphite crystal are separated by 335 pm. At what angle would you find the first-order ( n = 1) diffraction of 0.154-nm X rays from a graphite crystal?

▸ 27.4°

▸ 66.8°

▸ 0.232°

▸ 13.3°

▸

johnboycs   30   1 Reply

AdieMichelle

The arrow in this phase diagram represents which phase change?

The arrow in this phase diagram represents which phase change?

[html]The arrow in this phase diagram represents which phase change?

gringoboy6   31   1 Reply

olskee

Select the pair of substances in which the one with the lower vapor pressure at a given temperature ...

Select the pair of substances in which the one with the lower vapor pressure at a given temperature ...

[html]Select the pair of substances in which the one with the lower vapor pressure at a given temperature is listed first.

▸

Helen Kebede   28   1 Reply

jchang19

Select the pair of substances in which the one with the higher vapor pressure at a given temperature ...

Select the pair of substances in which the one with the higher vapor pressure at a given temperature ...

[html]Select the pair of substances in which the one with the higher vapor pressure at a given temperature is listed first.

▸ C7H16, C5H12

▸ CCl4, CBr4

▸ H2O, H

bbergeron11   36   1 Reply

chinwe20

Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the radius ...

Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the radius ...

Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the radius of a platinum atom?

▸ 69 pm

▸ 98 pm

▸ 139 pm

▸ 196 pm

▸ 277 pm

thunter609   43   1 Reply

letssdoothiss

Palladium crystallizes in a face-centered cubic unit cell. Its density is 12.0 g/cm3 at 27C. What is ...

Palladium crystallizes in a face-centered cubic unit cell. Its density is 12.0 g/cm3 at 27C. What is ...

[html]Palladium crystallizes in a face-centered cubic unit cell. Its density is 12.0 g/cm3 at 27°C. What is the atomic radius of Pd?

▸ 138 pm

▸ 1.95 × 10–8 nm

▸ 1.95 × 10–8 cm

ya-yaa   36   1 Reply

capsy2

One of the crystalline forms of zinc oxide is a structure where the oxygen atoms are at the lattice ...

One of the crystalline forms of zinc oxide is a structure where the oxygen atoms are at the lattice ...

One of the crystalline forms of zinc oxide is a structure where the oxygen atoms are at the lattice points in a face-centered cubic lattice. How many atoms are in each unit cell?

▸ 2

▸ 4

▸ 6

▸ 8

▸ 10

punkybrewster   27   1 Reply

studyinnurse

Octane is a liquid component of gasoline. Given the following vapor pressures of octane at various ...

Octane is a liquid component of gasoline. Given the following vapor pressures of octane at various ...

[html]Octane is a liquid component of gasoline. Given the following vapor pressures of octane at various temperatures, estimate the boiling point of octane in Leadville, Colorado, where the atmospheric pressure is 496 mmHg. (R = 8.314 J/K •

henry11   33   1 Reply

jjwatson

Octane has a vapor pressure of 40. torr at 45.1C and 400. torr at 104.0C. What is its heat of ...

Octane has a vapor pressure of 40. torr at 45.1C and 400. torr at 104.0C. What is its heat of ...

[html]Octane has a vapor pressure of 40. torr at 45.1°C and 400. torr at 104.0°C. What is its heat of vaporization? ( R = 8.314 J/K • mol)

▸ 39.1 kJ/mol

▸ 46.0 kJ/mol

▸ 590 kJ/mol

▸ 710 kJ/mol

▸ None of these choice

lpn27   29   1 Reply

oldgreyvlegs

Liquid sodium can be used as a heat transfer fluid. Its vapor pressure is 40.0 torr at 633C and ...

Liquid sodium can be used as a heat transfer fluid. Its vapor pressure is 40.0 torr at 633C and ...

[html]Liquid sodium can be used as a heat transfer fluid. Its vapor pressure is 40.0 torr at 633°C and 400.0 torr at 823°C. What is its heat of vaporization?

▸ 43.4 kJ/mol

▸ 52.5 kJ/mol

▸ 70.6 kJ/mol

▸ 1.00 × 102

arpylzr75   34   1 Reply

brendasants

Liquid ammonia can be used as a refrigerant and heat transfer fluid. How much energy is required to ...

Liquid ammonia can be used as a refrigerant and heat transfer fluid. How much energy is required to ...

[html]Liquid ammonia can be used as a refrigerant and heat transfer fluid. How much energy is required to heat 25.0 g of NH3( l) from  –65.0°C to  –12.0°C?

123lol456   36   1 Reply

dcmc92

Lead crystallizes in the face-centered cubic lattice. What is the coordination number for Pb?

Lead crystallizes in the face-centered cubic lattice. What is the coordination number for Pb?

Lead crystallizes in the face-centered cubic lattice. What is the coordination number for Pb?

▸ 4

▸ 6

▸ 8

▸ 10

▸ 12

srsbiz   25   1 Reply

windytodai

Iron crystallizes in the body-centered cubic lattice. What is the coordination number for Fe?

Iron crystallizes in the body-centered cubic lattice. What is the coordination number for Fe?

Iron crystallizes in the body-centered cubic lattice. What is the coordination number for Fe?

▸ 4

▸ 6

▸ 8

▸ 10

▸ 12

cc84sc   26   1 Reply

culwri204

If the adhesive forces between a liquid and the walls of a capillary tube are greater than the ...

If the adhesive forces between a liquid and the walls of a capillary tube are greater than the ...

[html]If the adhesive forces between a liquid and the walls of a capillary tube are greater than the cohesive forces within the liquid,

▸ the liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary

funkiiee   29   1 Reply

harrison5692

If liquid bromine is cooled to form a solid, which type of solid does it form?

If liquid bromine is cooled to form a solid, which type of solid does it form?

If liquid bromine is cooled to form a solid, which type of solid does it form?

▸ atomic

▸ metallic

▸ molecular

▸ ionic

▸ covalent

theroyalty   27   1 Reply

strawberry8971

If a molecule at the surface of a liquid has enough kinetic energy to escape the liquid phase and ...

If a molecule at the surface of a liquid has enough kinetic energy to escape the liquid phase and ...

[html]If a molecule at the surface of a liquid has enough kinetic energy to escape the liquid phase and enter the gas phase, then which of the following terms is used to describe this phenomenon?

▸ boiling point

▸ condensation

▸ vaporization

▸ su

ejoty   21   1 Reply

marcospolos

How much energy (heat) is required to convert 52.0 g of ice at 10.0C to steam at 100C? Specific heat ...

How much energy (heat) is required to convert 52.0 g of ice at 10.0C to steam at 100C? Specific heat ...

[html]How much energy (heat) is required to convert 52.0 g of ice at –10.0°C to steam at 100°C?  Specific heat of

edelynpl   46   1 Reply

jcochran128

How many phase changes are represented in the following heating curve of a pure substance?

How many phase changes are represented in the following heating curve of a pure substance?

[html]How many phase changes are represented in the following heating curve of a pure substance?

cacerami   26   1 Reply

MariannaG

For the solid forms of the following elements, which one is most likely to be of the molecular type?

For the solid forms of the following elements, which one is most likely to be of the molecular type?

For the solid forms of the following elements, which one is most likely to be of the molecular type?

▸ Cs

▸ C

▸ Pb

▸ S

▸ Cr

katerooshkie   32   1 Reply

Napoukah

Diethyl ether, (CH3CH2)2O, used as a solvent for extraction of organic compounds from aqueous ...

Diethyl ether, (CH3CH2)2O, used as a solvent for extraction of organic compounds from aqueous ...

[html]Diethyl ether, (CH3CH2)2O, used as a solvent for extraction of organic compounds from aqueous solutions, has a high vapor pressure, which makes it a potential fire hazard in laboratories in which it is used.

hellokidbye   32   1 Reply

cryzazn

Below is the phase diagram for sulfur. Which phase is present at 100C and 1 atm?

Below is the phase diagram for sulfur. Which phase is present at 100C and 1 atm?

[html]Below is the phase diagram for sulfur. Which phase is present at 100°C and 1 atm?

Eieio   31   1 Reply

Juke72

Below is the phase diagram for sulfur. Which phase has the highest density at 119C?

Below is the phase diagram for sulfur. Which phase has the highest density at 119C?

[html]Below is the phase diagram for sulfur. Which phase has the highest density at 119°C?

ScienceForte   27   1 Reply

krafty

Below is a representation of the unit cell for nickel(II) oxide. How many O2 anions are there in the ...

Below is a representation of the unit cell for nickel(II) oxide. How many O2 anions are there in the ...

[html]Below is a representation of the unit cell for nickel(II) oxide. How many O2– anions are there in the unit cell?

Bubblyparabola   23   1 Reply

lull

Based on the phase diagram of a pure substance given below, which statement is true?

Based on the phase diagram of a pure substance given below, which statement is true?

[html]Based on the phase diagram of a pure substance given below, which statement is true?

Rosa   24   1 Reply

shadowblacw

Based on the phase diagram of a pure substance given below, what phase exists at point F?

Based on the phase diagram of a pure substance given below, what phase exists at point F?

[html]Based on the phase diagram of a pure substance given below, what phase exists at point F?

mitch44   25   1 Reply

finley07

Based on the phase diagram of a pure substance given below, what is the significance of the point ...

Based on the phase diagram of a pure substance given below, what is the significance of the point ...

[html]Based on the phase diagram of a pure substance given below, what is the significance of the point labeled B?

aznmistyblue   31   1 Reply

paris.chen

Based on the phase diagram of a pure substance given below, what change of state occurs as the ...

Based on the phase diagram of a pure substance given below, what change of state occurs as the ...

[html]Based on the phase diagram of a pure substance given below, what change of state occurs as the substance changes from point C to point D?

remmylp   25   1 Reply

nalsaidy

At what temperature does ethanol boil on a day in the mountains when the barometric pressure is 547 ...

At what temperature does ethanol boil on a day in the mountains when the barometric pressure is 547 ...

[html]At what temperature does ethanol boil on a day in the mountains when the barometric pressure is 547 mmHg? The heat of vaporization of ethanol is 39.3 kJ/mol and its normal boiling point is 78.3°C. ( R = 8.314 J/K • mol

ellie425   35   1 Reply

TAE29

Ammonia's unusually high melting point is the result of

Ammonia's unusually high melting point is the result of

Ammonia's unusually high melting point is the result of

▸ dipole-dipole forces.

▸ London dispersion forces.

▸ hydrogen bonding.

▸ covalent bonding.

▸ ionic bonding.

linv08   23   1 Reply

dcmc92

A metal such as chromium in the body-centered cubic lattice has ________ atom(s) per unit cell.

A metal such as chromium in the body-centered cubic lattice has ________ atom(s) per unit cell.

A metal such as chromium in the body-centered cubic lattice has ________ atom(s) per unit cell.

▸ 1

▸ 2

▸ 3

▸ 4

▸ 9

tootsiebrowny   23   1 Reply

john august t