1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marusya05 [52]
3 years ago
13

How many grams of water react to form 7.21 moles of Ca(OH)2

Chemistry
1 answer:
oksano4ka [1.4K]3 years ago
7 0

You have the stoichiometric equation. This tells you unequivocally that an  

18

⋅

g

mass of water, 1 mole, reacts with a  

56.07

⋅

g

mass of quicklime to form a  

74.09

⋅

g

mass of slaked lime.

If you don't from where I am getting these numbers, you should know, and someone will be willing to elaborate.

Here, you have formed  

6.21

⋅

m

o

l

of quicklime which requires stoichiometric lime AND water. And thus you need a mass of  

6.21

⋅

m

o

l

×

18.01

⋅

g

⋅

m

o

l

−

1

water  

≅

88

⋅

g

.

In practice, of course I would not weigh out this mass. I would just pour  

100

−

200

⋅

m

L

of water into the lime.

You might be interested in
Part b if you had a high-energy xenon particle beam and wanted to make gold, what element would you bombard? ? +143 54xe→197 79a
Kaylis [27]

Answer:

The missing reactant is Mn^{55} _{25}  55/25Mn

Explanation:

asumming the missing reagent is A/Z X

In nuclear reaction , the sum of atomic number and mass number of on both sides musst be equal

Thus ,

Z + 54 = 79 + 0

Z = 25

The element with atomic number 25 is Mn

A + 143 = 197 +1

A = 55

Therefore, the missing reagent is 55/25Mn

7 0
3 years ago
16. Copper is made by the electrolysis of copper sulfate solution
rusak2 [61]

Answer:

SORFRRRRRRRRRRRRY!

Explanation:

5 0
3 years ago
What is the five physical properties
tester [92]

image: http://cf.ydcdn.net/1.0.1.69/images/searchclear.png

image: http://cf.ydcdn.net/1.0.1.69/images/search-white.png


13.6K
SHARES
HOMEREFERENCEEXAMPLESEXAMPLES OF PHYSICAL PROPERTIES
Examples of Physical Properties
7th grade8th grade9th gradeMiddle SchoolHigh SchoolCollege
image: http://www.yourdictionary.com/index.php/image/articles/18915.ThinkstockPhotos-83110393_boomerang.jpg


A physical property is any property of matter or energy that can be measured. It is an attribute of matter that can be observed or perceived.

Common Physical Properties
Absorption of electromagnetic - The way a photon’s energy is taken up by matter
Absorption (physical) - Absorption between two forms of matter
Albedo - Reflecting power of a surface
Angular momentum - The amount of rotation of an object
Area - Amount of a two dimensional surface in a plane
Brittleness - Tendency of a material to break under stress
Boiling point - Temperature where a liquid forms vapor
Capacitance - Ability of an object to store an electrical charge
Color - Hue of an object as perceived by humans
Concentration - Amount of one substance in a mixture
Density - Mass per unit volume of a substance
Dielectric constant - Storage and dissipation of electric and magnetic energy
Ductility - Ability of a substance to be stretched into a wire
Distribution - Number of particles per unit volume in single-particle phase space
Efficacy - Capacity to produce an effect
Elasticity - Tendency of a material to return to its former shape
Electric charge - Positive or negative electric charge of matter
Electrical conductivity - A material's ability to conduct electricity
Electrical impedance - Ratio of voltage to AC
Electrical resistivity - How strongly a flow of electric current is opposed
Electric field - Made by electrically charged particles and time-varying magnetic fields.
Electric potential - Potential energy of a charged particle divided by the charge
Emission - Spectrum of frequencies of electromagnetic radiation emitted
Flexibility - Pliability
Flow rate - Amount of fluid which passes through a surface per unit time.
Fluidity - Flows easily
Freezing point - Temperature where a liquid solidifies
Frequency - Number of repetitions in a given time frame
Hardness - How resistant solid matter is to external force
Inductance - When the current changes, the conductor creates voltage
Intrinsic impedance - Ratio of electric and magnetic fields in an electromagnetic wave
Intensity - Power transferred per unit area
Irradiance - Power of electromagnetic radiation per unit area
Length - Longest dimension of an object
Location - Place where something exists
Luminance - Amount of light that passes through a given area
Luminescence - Emission of light not resulting from heat
Luster - The way light interacts with the surface of a crystal, mineral or rock
Malleability - Ability to form a thin sheet by hammering or rolling a material
Magnetic moment - Force that the magnet exerts on electric currents and the torque that a magnetic field exerts on it
Mass - An object's resistance to being accelerated
Melting point - Temperature where a solid changes to a liquid
Momentum - Product of the mass and velocity of an object
Permeability - Ability of a material to support a magnetic field
Smell - Scent or odor of a substance
Solubility - Ability of a substance to dissolve
Specific heat - Heat capacity per unit mass of a material
Temperature - Numerical measure of heat and cold
Thermal conductivity - Property of a material to conduct heat
Velocity - Rate of change in the position of an object
Viscosity - Resistance to deformation by stress
Volume - Space that a substance occupies

6 0
3 years ago
Read 2 more answers
Suppose you dissolve 0.1 moles of 1-aminobutane (NH2-CH2-CH2-CH2-CH3) in 1.0 liter of water. a. What are all of the molecules an
sdas [7]

Answer:

a) The two compounds you will expect in these solution are 1-aminobutane and its conjugate acid.

b) The greatest total amount is of 1-aminobutane.

c) The least total amount is of the conjugate acid.

Explanation:

The equilibrium in water of 1-aminobutane is:

CH₃(CH₂)₃NH₃⁺ ⇄ CH₃(CH₂)₃NH₂ + H⁺

a) The two compounds you will expect in these solution are 1-aminobutane and its conjugate acid.

b) The equlibrium constant is: K = 1,66x10⁻¹¹.

That means you will have 1-aminobutane:Conjugate acid in a ratio of 6x10¹⁰ : 1 .

The greatest total amount is of 1-aminobutane

c) Thus, The least total amount is of the conjugate acid.

I hope it helps!

7 0
3 years ago
Pls answer
nataly862011 [7]

Answer:

The sound wave travelled more quickly through the glass of water than the metal pole.

The sound wave travelled the fastest through the helium.

The sound wave travelled the slowest through the metal pole.

These 3 are most likely true.

<u>If you have to </u><u>pick</u><u> </u><u>just</u><u> </u><u>one</u><u>,</u> the sound wave travelled the fastest through the helium.

3 0
3 years ago
Read 2 more answers
Other questions:
  • The following chemical equation is not balanced.
    8·2 answers
  • Which of the following is not a chemical property?
    7·2 answers
  • One gram of salt in 100 liters of water could be considered a _______________________ solution. A) concentrated B) dilute C) sat
    6·2 answers
  • How does electronegativity work?
    9·1 answer
  • Calculate the mass of sodium acetate trihydrate required to make 100. mL of a 0.100 M solution. 0.820 g 1.00 g 1.36 g 1.95 g
    12·1 answer
  • How many kJ/mol (of photons) of energy is contained in light with a wavelength of 4966.36nm?
    10·2 answers
  • What can you infer about copper and silver based on the position related to each other on the periodic table
    8·1 answer
  • _________ rock's form when hot, molten rock cools and becomes a solid
    15·1 answer
  • Which of the following is true? Electrons are shared in ionic bonding
    11·1 answer
  • DUE TOMORROW!!! 15 POINTS
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!