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
12345 [234]
2 years ago
9

A sample of iron contains 2.806 x 1024 atoms of iron (Fe). How many moles of iron are in the sample?

Chemistry
1 answer:
xxMikexx [17]2 years ago
4 0

Answer:

Approx. 20 moles of iron.

Explanation:

There are approx. 6.022 x 10.23 iron atoms per mole of iron. In this quantity, The number of iron atoms has a mass of

55.85 ⋅ g.

You might be interested in
Which process is most responsible for leaving salt molecules in ocean water?
Elenna [48]
Desalination is a process that takes away mineral components from saline water.
4 0
3 years ago
Read 2 more answers
A chemical reaction that is expected to form 325.0 gof product only forms 123.8 g of product. What is the percent yield of this
Tasya [4]

Answer:

\boxed {\boxed {\sf A. \ 38.1 \%}}

Explanation:

Percent yield is the ratio of the amount actually produced to how much could theoretically be produced. It is found using this formula:

\% \ yield = \frac{actual \ yield}{theoretical \ yield} *100

For this reaction, the theoretical or expected yield is 325.0 grams. The actual yield is 123.8 grams.

\% \ yield = \frac{ 123.8 \ g }{325.0 \ g }*100

Divide.

\% \ yield = 0.380923077 *100

\% \ yield = 38.0923077

Round to the nearest hundredth. The 9 in the hundredth place tells us to round the 0 to a 1 .

\% \ yield \approx 38.1

The percent yield is about <u>38.1%</u>

5 0
3 years ago
Read 2 more answers
The number of protons plus the number of neutrons is the atom called what​
MrMuchimi

Answer:

The mass number

Explanation:

neutrons + protons = mass number

5 0
3 years ago
Convert 150 kPa to atmospheres. *
lakkis [162]

Answer: 1.48 atmosphere

Explanation:

Pressure in kilopascal = 150

Pressure in atmosphere = ?

Recall that 1 atmosphere = 101.325 kilopascal

Hence, 1 atm = 101.325 kPa

Z atm = 150 kPa

To get the value of Z, cross multiply

150 kPa x 1 atm = 101.325 kPa x Z

150 kPa•atm = 101.325 kPa•Z

Divide both sides by 101.325 kPa

150 kPa•atm/101.325 kPa = 101.325 kPa•Z/101.325 kPa

1.48 atm = Z

Thus, 150 kPa is equivalent to 1.48 atmospheres

7 0
3 years ago
If one mole of PtCl2·3NH3 reacts with AgNO3 to produce one mole of AgCl(s), how can the formula PtCl2·3NH3 be re-written to show
kap26 [50]
Don't bet any money on this but I think its [Pt(NH3)3] Cl2
6 0
3 years ago
Other questions:
  • Open-ended question: Differentiate between a solution and a two phase mixture. Brass is would be classified as which one of them
    9·1 answer
  • Isomers have the same physical properties because the chemical formulas are identical. True False
    11·1 answer
  • The process of adding water molecules to the crystal structure of some minerals is known as ____________.
    14·1 answer
  • What will be the product when zinc snd silver nitrate undergo a single-replacement reaction
    15·1 answer
  • This element has a mass of 500.5 g. How much<br> volume does it have?
    5·1 answer
  • ASAP! HELP<br><br><br> Which is an example of radiation?<br> 1st <br> 2nd<br> 3rd<br> 4th
    12·1 answer
  • Which row gives the correct order of reactivity of the four metals?<br> (look at the attached photo)
    13·2 answers
  • Please help me and I’ll give you brainiest!!!!!!!!! <br><br><br><br> Have a wonderful day!!:)))
    6·1 answer
  • How many grams of pbcl2 will be formed from 50. 0ml of a 1. 50m kcl solution?
    8·1 answer
  • How many moles is 25g of ammonia (NH3)?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!