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
Gemiola [76]
3 years ago
11

How many moles are in 579 grams of Pt

Chemistry
2 answers:
aleksandr82 [10.1K]3 years ago
6 0
2.96804 moles that’s the answer. hope it helped
Tasya [4]3 years ago
5 0

Answer:

Use the formula n=m/M and you’ll find that there are 2.967 moles in 579 g of platinum .

You might be interested in
Solid aluminum (AI) and oxygen (O_2) gas react to form solid aluminum oxide (Al_2O_3). Suppose you have 7.0 mol of Al and 9.0 mo
Nimfa-mama [501]

Answer:

There will be formed 3.5 moles of Al2O3 ( 356.9 grams)

Explanation:

Step 1: Data given

Numbers of Al = 7.0 mol

Numbers of mol O2 = O2

Molar mass of Al = 26.98 g/mol

Molar mass of O2 = 32 g/mol

Step 2: The balanced equation

4Al(s) + 3O2(g) → 2Al2O3(s)  

Step 3: Calculate limiting reactant

For 4 moles Al we need 3 moles O2 to produce 2 moles Al2O3

Al is the limiting reactant, it will be consumed completely (7 moles).

O2 is in excess.  There will react 3/4 * 7 = 5.25 moles

There will remain 9-5.25 = 3.75 moles

Step 4: Calculate moles Al2O3

For 4 moles Al we'll have 2moles Al2O3

For 7.0 moles of Al we'll have 3.5 moles of Al2O3 produced

Step 5: Calculate mass of Al2O3

Mass Al2O3 = moles Al2O3 * molar mass Al2O3

Mass Al2O3 = 3.5 moles* 101.96 g/mol

Mass Al2O3 = 356.9 grams

There will be formed 3.5 moles of Al2O3 ( 356.9 grams)

3 0
3 years ago
Question 3
hammer [34]

Answer:

in the excited state

Explanation:

Because in excited state an atom has more energy

5 0
3 years ago
Read 2 more answers
When KNO3 dissolved in water, what is the intermolecular attraction between NO3 ions
Snezhnost [94]
Ion-dipole forces

H2O has hydrogen bonding, which is a form of dipole-dipole forces, and NO3- is an ion, so the intermolecular attraction is ion-dipole.
4 0
3 years ago
What common carboxylic acid does vinegar contain?
Dafna1 [17]
Acetic acid.
_________
7 0
3 years ago
If you had 15 molecules of H2 and an unlimited supply of N2, how many
Masja [62]

Answer:

10 molecules of NH₃.

Explanation:

N₂ + 3H₂ --> 2NH₃

As the N₂ supply is unlimited, what we need to do to solve this problem is <u>convert molecules of H₂ into molecules of NH₃</u>. To do so we use the <em>stoichiometric coefficients</em> of the balanced reaction:

  • 15 molecules H₂ * \frac{2moleculesNH_3}{3moleculesH_2} = 10 molecules NH₃

10 NH₃ molecules could be prepared from 15 molecules of H₂ and unlimited N₂.  

8 0
3 years ago
Other questions:
  • A compound, like water, can be broken down (decomposed) by:
    15·2 answers
  • 55.845 nearest tenth
    15·2 answers
  • Write the ions present in a solution of na3po4. express your answers as chemical formulas separated by a comma. offset subscript
    14·1 answer
  • Can someone please help me on the second quick Check!!!!
    10·2 answers
  • Which best describes the trends in electronegativity on the periodic table?
    5·2 answers
  • How many moles of naf are in 34.2 grams of a 45.5% by mass naf solution?
    7·1 answer
  • Select the true statement. ANSWER Unselected Anions are smaller than their neutral parent atoms because there are fewer electron
    6·1 answer
  • How do you figure out the number of protons, neutrons, and electrons in each of these isotopes? a. 6/3 Li, 7/3 Li b. 42/20 Ca, 4
    8·1 answer
  • If we put 1g samples of all four of these into a hot oven, which would absorb the most heat in order to reach 100 degrees Celsiu
    7·1 answer
  • Help for this practice work
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!