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
QveST [7]
3 years ago
9

How do you determine the volume of an irregular object if you don't know the density?

Chemistry
1 answer:
polet [3.4K]3 years ago
6 0
I think the answer is a not sure tho hope u the answe
You might be interested in
a particular application calls for N2 g with a density of 1.80 g/L at 32 degrees C what must be the pressure of the n2 g in mill
baherus [9]

Answer:

1223.38 mmHg

Explanation:

Using ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 62.3637\text{ L.mmHg }mol^{-1}K^{-1}

Also,  

Moles = mass (m) / Molar mass (M)

Density (d)  = Mass (m) / Volume (V)

So, the ideal gas equation can be written as:

PM=dRT

Given that:-

d = 1.80 g/L

Temperature = 32 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T = (32 + 273.15) K = 305.15 K

Molar mass of nitrogen gas = 28 g/mol

Applying the equation as:

P × 28 g/mol  = 1.80 g/L × 62.3637 L.mmHg/K.mol × 305.15 K

⇒P = 1223.38 mmHg

<u>1223.38 mmHg must be the pressure of the nitrogen gas.</u>

5 0
3 years ago
As an object falls down the earth, its gravitational potential energy will
Travka [436]

Answer:

a. decrease

Explanation:

6 0
2 years ago
What molecule is the ultimate source of hydrogen ions that are secreted into the gastric juice?
sladkih [1.3K]

Answer: carbonic acid

Explanation:

8 0
3 years ago
What is the main cause of earthquakes?
Ahat [919]

Answer:

movement in tectonic plates. or volcanic eruptions.

Explanation:

5 0
2 years ago
An amphoteric salt is one that contains an anion that can act as either an acid or a base in water. Baking soda, NaHCO3, is an e
LenKa [72]

Answer:

pH = 8.34

Explanation:

The equilbriums of the amphoteric HCO₃⁻ (Ion of NaHCO₃) are:

H₂CO₃ ⇄ <em>HCO₃⁻</em> + H⁺ Ka1 <em>-Here, HCO₃⁻ is acting as a base-</em>

<em>HCO₃⁻</em>⇄ CO₃²⁻ + H⁺ Ka2 <em>-Here, is acting as an acid-</em>

Where Ka1 = 4.3x10⁻⁷ and Ka2 = 4.8x10⁻¹¹. As pKa = -log Ka:

pKa1 = 6.37; pKa2 = 10.32

As the pH of amphoteric salts is:

pH = (pKa1 + pKa2) / 2

<h2>pH = 8.34</h2>
3 0
3 years ago
Other questions:
  • Which group has 1 valence electron?
    12·1 answer
  • is it possible for a balloon with an initial pressure of 200.0 kpa to naturally expand to four times its initial volume when the
    6·2 answers
  • hich statement correctly describes a chemical equilibrium? It must take place in an open system. The mass of the reactants and t
    6·1 answer
  • Ichthyothereol is isolated from the leaves of Ichthyothere terminalis. It is so toxic to fish that they will jump out of the wat
    8·1 answer
  • Salim takes 100 g of water each in four identical containers P, Q, R and S and mixes the following in them. 5 g of salt in conta
    15·1 answer
  • . Calculate the molality of each of the following solutions: (a) 0.710 kg of sodium carbonate (washing soda), Na2CO3, in 10.0 kg
    11·1 answer
  • 2) What is the concentration of NaCl in a solution prepared by diluting 56.98 ml of 0.5894 M stock
    5·1 answer
  • An example of a solid aerosol
    11·1 answer
  • Nsnjknfjksbjfnjfjnjk
    8·2 answers
  • Who was the first president of Jamaica ​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!