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
Tems11 [23]
3 years ago
9

Calculate these volumes.

Chemistry
2 answers:
MrMuchimi3 years ago
7 0
Check photo for answers!

Westkost [7]3 years ago
3 0

<u>Answer:</u>

<u>For a:</u> The volume of graphite is 5.02cm^3

<u>For b:</u> The volume of bromine is 13.54cm^3

<u>Explanation:</u>

To calculate volume of a substance, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}      ......(1)

  • <u>For a:</u>

Density of graphite = 2.25g/cm^3

Mass of graphite = 11.3 g

Putting values in equation 1, we get:

2.25g/cm^3=\frac{11.3g}{\text{Volume of graphite}}\\\\\text{Volume of graphite}=\frac{11.3g}{2.25g/cm^3}=5.02cm^3

Hence, the volume of graphite is 5.02cm^3

  • <u>For b:</u>

Density of bromine = 2.928g/cm^3

Mass of bromine = 39.657 g

Putting values in equation 1, we get:

2.928g/cm^3=\frac{39.657g}{\text{Volume of bromine}}\\\\\text{Volume of bromine}=\frac{39.657g}{2.928g/cm^3}=13.54cm^3

Hence, the volume of bromine is 13.54cm^3

You might be interested in
HELP ASAP!!!
givi [52]
This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system. In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactants.



I looked this up but hope it helps!
4 0
3 years ago
________ is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.
kari74 [83]

Answer:

Foliation is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.

Explanation:

Foliation is most commonly prevalent in metamorphic rocks. Foliation is the parallel alignment of textural and structural features of a rock.

Differential stress plays a major role on the texture of metamorphic rocks because it forces the mineral constituent of the rocks to align parallel to each other.  Foliation can occur in different ways for example a mineral like mica which is usually platy can crystallize in rocks , due to differential stress the mineral grows in such a way it remains parallel to the movement in which the part of the rock slide relative to one another and parallel to the forces applied or the mineral might grow perpendicular to the direction of the compressed stress.  

Notice the foliation in the texture of gneiss .You can see the light and dark mineral found in separate or parallel layer.

3 0
3 years ago
BALANCE THIS EQUATION:<br> C4H10 + O2 = C02 + H20
Lostsunrise [7]

Answer:

{ \rm{C _{4} H_{10}+  \frac{13}{2} O _{2} = 4C0 _{2} + 5H _{2}0}} \\

5 0
3 years ago
What trend in ionization do you see going up and down?
xxTIMURxx [149]
Depending if you were going up, you would be seeing an increase in relative ionization energies in a particular group on the periodic table, and vice versa, if you go down the group, an decrease in the relative ionization energies.
5 0
3 years ago
20.0 g of Nitrogen is produced when oxygen gas reacts with NO gas. 29.8 L of oxygen is required at STP to produce this 20.0 g of
fiasKO [112]

The statement is false as 85675 grams of nitrogen dioxide is produced instead of 20 grams.

Explanation:

Balance equation for the reaction:

2NO + O_{2} ⇒ 2NO_{2}

Data given:

mass of nitrogen produced = 20 gram

mass of oxygen = 29.8 litres or 29800 grams

0xygen is the limiting reagent so,

number of moles of oxygen: (atomic mass of 1 mole 32 grams/mole

number of moles = \frac{mass}{atomic mass of 1  mole}

putting the values in the equation:

 =  \frac{29800}{32}

  = 931.5 moles

1 mole of oxygen reacts to give 2 moles of NO2

931.5 moles of oxygen will give x moles

\frac{2}{1}=\frac{x}{931.5}

1862.5 moles of NO2 produced

in grams

mass = number of moles x atomic mass

mass = 1862.5 x 46.00

          = 85675 grams

The statement is false as 85675 grams of nitrogen dioxide is produced instead of 20 grams as said in question.

7 0
3 years ago
Other questions:
  • Why would it be more difficult to inject the nucleus of uranium with a proton?
    6·1 answer
  • Best light to make a rainbow
    12·1 answer
  • Which of the following statements explain what is currently known about Earth’s oceans? Select all that apply.
    15·2 answers
  • An organism's unique characteristics affect the individual's ability to survive in its environment. true or false
    13·2 answers
  • Hydrazine, N2H4, is a weak base and is used as fuel in the space shuttle.
    11·1 answer
  • Starches and glycogen are carbohydrates polymers comprised of which monomer
    7·1 answer
  • What is concentration
    8·2 answers
  • The mass of the nails and copper sulfate solution used in this investigation was 250g. The mass of the copper and iron sulfate s
    11·1 answer
  • Why do scientists need a universal system to classify organisms?
    15·1 answer
  • PLZ HELP
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!