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
finlep [7]
2 years ago
9

A rectangular aquarium is 47.2 cm wide, 89 cm long, and 65.38 cm tall. What is the volume of the aquarium? How many liters of wa

ter does it take to fill this aquarium?
Chemistry
1 answer:
maria [59]2 years ago
6 0

Answer: 274.6 L

Explanation:

Given : length = 89 cm, width = 47.2 cm and height = 65.38 cm

Volume of rectangular aquarium =length\times width\times height

Volume of aquarium =89cm\times 47.2cm\times 65.38cm=274648.3cm^3=274.6L        (1000cm^3=1L)

Thus the tank can hold 274.6 L of water to fill this aquarium.



You might be interested in
The "air bags" that are currently installed in automobiles to prevent injuries in the event of a crash are equipped with sodium
stellarik [79]

Answer:

0.0177 L of nitrogen will be produced

Explanation:

The decomposition reaction of sodium azide will be:

2NaN_{3}(s)--->2Na(s)+3N_{2}(g)

As per the balanced equation two moles of sodium azide will give three moles of nitrogen gas

The molecular weight of sodium azide = 65 g/mol

The mass of sodium azide used = 100 g

The moles of sodium azide used = \frac{mass}{molarmass}=\frac{100}{65}=1.54mol

so 1.54 moles of sodium azide will give = \frac{3X1.54}{2}=2.31mol

the volume will be calculated using ideal gas equation

PV=nRT

Where

P = Pressure = 1.00 atm

V = ?

n = moles = 2.31 mol

R = 0.0821 L atm / mol K

T = 25 °C = 298.15 K

Volume = \frac{P}{nRT}=\frac{1}{2.31X0.0821X298.15}=0.0177L

3 0
3 years ago
Without doing any calculations, match the following thermodynamic properties with their appropriate numerical sign for the follo
siniylev [52]

Answer:

∆H > 0

∆Srxn <0

∆G >0

∆Suniverse <0

Explanation:

We are informed that the reaction is endothermic. An endothermic reaction is one in which energy is absorbed hence ∆H is positive at all temperatures.

Similarly, absorption of energy leads to a decrease in entropy of the reaction system. Hence the change in entropy of the reaction ∆Sreaction is negative at all temperatures.

The change in free energy for the reaction is positive at all temperatures since ∆S reaction is negative then from ∆G= ∆H - T∆S, we see that given the positive value of ∆H, ∆G must always return a positive value at all temperatures.

Since entropy of the surrounding= - ∆H/T, given that ∆H is positive, ∆S surrounding will be negative at all temperatures. This is so because an endothermic reaction causes the surrounding to cool down.

3 0
2 years ago
Beryllium oxide, Beo, is an electrical insulator. How
egoroff_w [7]

Answer:

There are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.

Explanation:

We can calculate the number of moles (η) of BeO as follows:

\eta = \frac{m}{M}

Where:

m: is the mass = 250 g

M: is the molar mass = 25.0116 g/mol

Hence, the number of moles is:

\eta = \frac{250 g}{25.0116 g/mol} = 10.0 moles

Therefore, there are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.  

I hope it helps you!

3 0
3 years ago
If a 3.0 picogram (pg) sample of curium-245 has a half-life of 8500 years, which conclusion can be drawn?
fomenos

Answer:

its A

Explanation:

8 0
2 years ago
Which of the following is an example of how research into the effects of a chemical has changed how it is used? A. Finding out t
Marizza181 [45]
B is the correct answer
3 0
3 years ago
Other questions:
  • 3. A tea kettle holds about<br> of water.<br> 2 mL<br> 200 mL<br> 2L<br> 200 L
    8·2 answers
  • A line in the lyman series of hydrogen has a wavelength of 122 nm. from what state did the electron originate?
    11·1 answer
  • Is precipitate in water an electrolyte solution
    8·1 answer
  • Is powdered sports drink ionic or covalent ? 10pts !
    14·1 answer
  • What are you and what do you want with my attendance
    8·1 answer
  • What types of student conduct are inappropriate in the lab environment?List at least five types
    10·1 answer
  • Which of the following explains how all compounds are created?
    8·2 answers
  • Acetic acid is found in significant quantities in
    12·1 answer
  • Use the drop-down menus to select the names of the labeled structures.<br><br> A: B: C:
    8·3 answers
  • What can the flow of electrons be easily compared to?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!