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
kipiarov [429]
3 years ago
7

A block of metal has a mass of 0.0694 kg. It displaces 3.6 mL of water. What is it’s density in g/cm^3

Chemistry
1 answer:
Ivan3 years ago
4 0

Answer:

19.28 g/cm^3 to the nearest hundredth.

Explanation:

The volume of water displaced = the volume of the metal.

density = mass / volume

0.0694 kg = 0.0694 * 1000

=  69.4 g.

Density = 69.4 / 3.6

= 19.28 g/cm^3.

You might be interested in
If .75 moles of ammonia is needed, how many grams of nitrogen will be consumed?
MrMuchimi

We have to get the amount of nitrogen to be consumed to get 0.75 moles of ammonia.

The amount of nitrogen (in grams) required to prepare 0.75 moles of ammonia is: 10.5 grams.

Ammonia (NH₃) can be prepared from nitrogen (N₂) as per following balanced chemical reaction-

N₂ (g) + 3H₂ (g) ⇄ 2NH₃ (g)

According to the above reaction, to prepare 2 moles of ammonia, one mole of nitrogen is required. Hence, to prepare 0.75 moles of ammonia, \frac{1 X 0.75}{2} moles = 0.375 moles of nitrogen is required.

Molar mass of nitrogen is 28 grams, i.e, mass of one mole of nitrogen is 28 grams, so mass of 0.375 moles of nitrogen is 0.375 X 28 grams=10.5 grams of nitrogen.

Therefore, the amount of nitrogen (in grams) required to prepare 0.75 moles of ammonia is 10.5 grams.


5 0
3 years ago
Enter your answer in the provided box. Consider the reaction: N2(g) + 3H2(g) → 2NH3(g) Suppose that a particular moment during t
Mashcka [7]

Answer:

0.0253 M/s

Explanation:

From the reaction

N₂ + 3H₂ → 2NH₃

The rate of reaction can be written as

Rate = - \frac{d[N_2]}{dt} = - \frac{1}{3} \frac{d[H_2]}{dt} = + \frac{1}{2} \frac{d[NH_3]}{dt}

From the above rate equation we can conclude that the rate of reaction of N₂ is equal to one third of the rate of reaction of H₂,

So,

Rate of reaction of molecular nitrogen = \frac{1}{3} \times 0.0759

Upon calculation, we get rate of reaction of molecular nitrogen = 0.0253 M/s

4 0
3 years ago
What is the word equation of photodecomposition?​
Oksi-84 [34.3K]

Answer:

I have for Decompostion

Explanation:

A decomposition reaction occurs when one reactant breaks down into two or more products. It can be represented by the general equation: AB → A + B. In this equation, AB represents the reactant that begins the reaction, and A and B represent the products of the reaction

7 0
3 years ago
Draw all the structural isomers for the molecular formula C3H8O. Be careful not to draw any structures by crossing one line over
Art [367]

Answer:

The three isomers having the molecular formula C_{3} H_{8}O are drawn in the figure below.

Explanation:

5 0
3 years ago
How many mol of hydrogen are needed to double the volume occupied by 0.34 mol of hydrogen,
natima [27]

Answer:

0.68

Explanation:

Number of moles is directly propotionalto the volume at standard condition.

6 0
3 years ago
Other questions:
  • Julia wants to find out which color fabric will heat up the fastest when put under a direct light.
    11·2 answers
  • Five different substances are given to you to be dissolved in water. which substances are most likely to undergo dissolution in
    11·2 answers
  • PLZ HELP ASAP !!!!!!
    13·2 answers
  • Nuclear energy is produced when scientists force uranium (U) atoms to break apart. With this in mind, examine the list below. If
    13·2 answers
  • What do you think will happen if you pinch your arm after you stub your toe?
    12·2 answers
  • Iron and vanadium both have the BCC crystal structure and V forms a substitutional solid solution for concentrations up to appro
    12·1 answer
  • Hydroxyl, ether, carbonyl, or amine?
    8·1 answer
  • 20 Points for urgency. <br> Determine the [OH-] for the following.<br> (Shown in image)
    11·1 answer
  • In order for sodium to have 8 valence electrons it would need to either gain _____ electrons or lose _____ electron.
    8·1 answer
  • Iron reacts with chlorine gas to form iron (III) chloride. What mass of iron (III) chloride is expected if 5.00 g of iron is com
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!