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
stealth61 [152]
2 years ago
13

If we need 0.75 moles of ammonium hydroxide, how much is this in grams? The molar mass of ammonium hydroxide is 35.04g / (mol)

Chemistry
1 answer:
cestrela7 [59]2 years ago
5 0

Answer:

26.28

Explanation:

You multiply 35.04 by 0.75 which is equal to 26.28.

You might be interested in
Which example has only potential energy and no kinetic energy? a roller coaster zooming down a hill a child riding their bike a
ollegr [7]
D) A ball sitting in a shelf
3 0
3 years ago
Read 2 more answers
Which best describes thermal energy? It is the difference between internal energies of two or more substances. It is the sum of
Anit [1.1K]

Answer:

It is the portion of internal energy that can be transferred from one substance to another.

7 0
2 years ago
Read 2 more answers
The diameter of the He He atom is approximately 0.10 nm nm . Calculate the density of the He atom in g/cm 3 g/cm3 (assuming that
Sladkaya [172]

Answer:

Density of the He atom = 12.69 g/cm³

Explanation:

From the information given:

Since 1 mole of an atom = 6.022x 10²³ atoms)

1 atom of He = 1  \ atom \times  (\dfrac{1  \ mole}{  6.022 \times  10^{23}  \ atoms}) \times ( \dfrac{4.003 \ grams}{  1  \ mole})

=6.647 \times  10^{-24} \  grams

The volume can be determined as  folows:

since the diameter of the He atom is approximately 0.10 nm

the radius of the He = \dfrac{0.10}{2} = 0.05 nm

Converting it into cm, we have:

0.05 nm \times  \dfrac{10^{-9} \  meters}{ 1  nm} \times \dfrac{ 1 cm }{10^{-2} \ meters}

=5 \times  10^{-9}  \ cm

Assuming that it is a sphere, the volume of a sphere is

= \dfrac{4}{3}\pi r^3

= \dfrac{4}{3}\pi  \times (5\times 10^{-9})^3

= 5.236 \times 10^{-25} \ cm^3

Finally, the density can be calcuated by using the formula :

Density = \dfrac{mass}{volume}

D =  \dfrac{6.647 \times  10^{-24} \  grams }{ 5.236 \times 10^{-25} \  cm^3}

D = 12.69 g/cm³

Density of the He atom = 12.69 g/cm³

4 0
3 years ago
Read 2 more answers
What is one benefit and one negative of the Gulf Stream
luda_lava [24]

This is a benefit I’m not sure if a negative

This strong current of warm water influences the climate of the east coast of Florida, keeping temperatures there warmer in the winter and cooler in the summer than the other southeastern states. Since the Gulf Stream also extends toward Europe, it warms western European countries as well.

6 0
2 years ago
What period is the atom in?
lys-0071 [83]
It is in period 3
It is in group 17
It is a chlorine atom because it has 17 electrons which means the atomic number is 17
6 0
3 years ago
Other questions:
  • Mass is measured against a standard using a
    10·2 answers
  • On the pH scale, a 7 indicates _____.<br> a base<br> an acid<br> neutrality
    13·1 answer
  • What the mass of a 1.00cm3 piece of iron having a density of 7.90g/cm3
    12·1 answer
  • Which best describes a neutralization reaction?
    13·1 answer
  • Consider a voltaic cell where the anode half-reaction is Zn(s) → Zn2+(aq) + 2 e− and the cathode half-reaction is Sn2+(aq) + 2 e
    11·1 answer
  • What do u call a change in a state from a liquid to a gas
    5·2 answers
  • How many elements are found in the third period. A.2 B.18 C.8 D.32​
    8·2 answers
  • 3. What volume would be occupied by 3.5 mol of oxygen gas at a pressure
    5·1 answer
  • What type of rock is limestone? Describe how a limestone rock is likely to change over a long period of time.
    15·1 answer
  • The half-life of tritium (h) is 12 years. How long does it take for 16. 0 ng of tritium to decay to the point where 2. 0 ng rema
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!