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
Fynjy0 [20]
3 years ago
8

A 44.8 g rhodium sample contains how many rhodium atoms

Chemistry
1 answer:
Tresset [83]3 years ago
6 0

Answer:

2.63*10^23

Explanation:

1 mol rhodium = 102.91

44.8g/1 mol * 1 mol/ 102.91mol * 6.022*10^23/1 mol =

2.63*10^23

You might be interested in
At 2000 ∘C the equilibrium constant for the reaction 2NO(g)⇌N2(g)+O2(g) is Kc=2.4×103. If the initial concentration of NO is 0.1
Rasek [7]

Answer:

[N_2]=0.0866M

Explanation:

Hello there!

In this case, in agreement to the chemical reaction, it is possible for us to figure out the equilibrium concentration of the N2 product, via an ICE table plugged in the equilibrium expression:

Kc=\frac{[N_2][O_2]}{[NO]^2}\\\\2.4x10^3=\frac{x*x}{(0.175-2x)^2}

In such a way, when solving for x via quadratic equation or just a solver, it is possible to obtain:

x_1=0.0866M\\\\x_2=0.0884M

In such a way, since the root 0.0884 M produce a negative concentration of NO (0.175-2*0.0884=-0.0018M), we infer that the correct root is 0.0866 M; therefore, the concentration of N2 at equilibrium is equal to x:

[N_2]=x=0.0866M

Best regards!

4 0
3 years ago
Coyotes and oak trees are unicellular organisms?
nordsb [41]

Answer :

<h2>Multicellular organisms</h2>

Explanation :

Coyotes are multicellular organisms.

Trees are multicellular organisms. They are made up of eukaryotic cells, which are complex cells full of organelles.

4 0
3 years ago
Question 20 of 25
Mnenie [13.5K]

Answer:

I think that electonegativity increases

4 0
2 years ago
Read 2 more answers
Examine these two MSDS from different manufacturers for sodium hydroxide (NaOH). Compare and contrast the following aspects: che
SCORPION-xisa [38]

Answer:

In #1) Chemical Name: Sodium hydroxide, Chemical Formula: Na OH, Synonyms: Caustic soda, Sodium hydrate. General: Corrosive to metals and tissue. Noncombustible solid. Soluble in water. When in contact with water, may generate sufficient heat to ignite combustible materials.Health Hazard: Strong corrosive action on contacted skin. Causes eye and skin burns. Causes digestive and respiratory tract burns. Reactivity: Water, acids, flammable liquids, metals such as aluminum, tin, and zinc.Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider the material's impact on air quality, potential migration in soil or water, effects on animal and plant life, and conformance with environmental and public health regulations.  

#2) Product Name: Sodium hydroxide, pellets

Chemical Name: Sodium Hydroxide

Synonyms: Lye, Caustic soda, Soda lye

G H S-US

Signal Word: Danger

Hazard Statement: H 314 - Causes severe skin burns and eye damage

Precautionary Statements:

P 260 - Do not breathe mist, spray, or vapors.

P 264 - Wash exposed skin thoroughly after handling.

P 280 - Wear eye protection, face protection, protective clothing, and protective gloves.

P 301+P 330+P 331 - IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P 303+P 361+P 353 - IF ON SKIN: Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.

P 305+P 351+P 338 – IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing

P 310 - Immediately call a poison center or doctor/physician.

P 363 - Wash contaminated clothing before reuse.

P 405 - Store locked up.

P 501 - Dispose of contents/container to comply with local, state, and federal regulations

IF INHALED: Remove person to fresh air and keep comfortable for breathing

Health Hazard: Causes severe burns to eyes, skin, and mucus membranes.

Target Organs: Eyes, skin, respiratory system

Hazard Summary: When dissolved in water or neutralized with acid, it liberates substantial heat, which may be sufficient to ignite combustible materials. Sodium hydroxide is very corrosive.

Waste Disposal: Waste must be disposed of in accordance with federal, state, and local environmental control regulations.

Explanation:

I just did this by stating what I observed then copy and pasted the info it asked for the only one I didn't get was order of compounds. Anyways hope this helps.

8 0
4 years ago
Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes?
lesya [120]
The answer is B. Unsaturated hydrocarbons will be hydrocarbons that have twofold or triple covalent securities between neighboring carbon particles. Those with no less than one carbon-to-carbon twofold bond are called alkenes and those with no less than one carbon-to-carbon triple bond are called alkynes.
5 0
4 years ago
Read 2 more answers
Other questions:
  • What is the chemical equation for a reaction between copper (ll carbonate and heat?
    15·1 answer
  • considering what you now know about boyle’s law, make a prediction based on the following situation. what would happen to the pr
    6·1 answer
  • PLEASE ANSWER FAST Which measurements gives the precision of the balance shown above?
    5·2 answers
  • In a convection current, as the temperature of a fluid increases, its (blank) decreases.
    10·2 answers
  • calcualte pressure at STP in 10.0 L vessel after reaction of 1.0 L hydrochloride acid (concentration 35% and density 1.28 g/cub.
    5·1 answer
  • What is latitude? What does latitude have to do with the prevailing westerlies?
    5·2 answers
  • Two moles of MgsO4•7H2O contain ___ grams of MgSO4•7H2O
    12·1 answer
  • Draw the Lewis structures for<br><br> Calcium bromide, CaBr2
    14·1 answer
  • True or false?<br><br> Freshwater can occur as a gas, liquid, or solid.
    14·2 answers
  • How does tension affect the speed of a wave in a rope
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!