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
Vilka [71]
3 years ago
9

What is the mass of 5.22×10^21 platinum atoms??

Chemistry
2 answers:
antiseptic1488 [7]3 years ago
7 0

Answer:

1.69g

Explanation:

To solve the problem you need to know the Avogadro´s number and the molar mass of the Platinum.

The Avogadro´s number is 6.022*10^{23}\frac{atoms}{mol}. For the platinum it means that there are 6.022*10^{23}\frac{atoms}{mol} atoms of platinum for each mol.

And the molar mass for the platinum is 195.084\frac{g}{mol}, that is the mass in grams of each mol of platinum.

So, with this information we can solve the problem as follows:

5.22*10^{21}atomsofPt*\frac{1molofPt}{6.022*10^{23}atomsofPt}*\frac{195.084g}{1molofPt}=1.69g of Pt

sp2606 [1]3 years ago
4 0
Atomic mass platinum = <span>195.084 a.m.u

195.084 g -------------- 6.02x10</span>²³ atoms
?? g -------------------- 5.22x10²¹ atoms

( 5.22x10²¹) x 195.084 / 6.02x10²³ => 1.691 g

hope this helps!
You might be interested in
!! ANSWER QUICK !!
kari74 [83]

Answer:

I can use a dichotomous key. It helps me classify objects by sorting it out with "yes" and "no" questions.

or

I can use a Punnett Square. It helps me classify what genes the offspring will receive simply by figuring out the recessive and dominant genes as well as the hetzygous and homzygous.

Now give an example of which ever chart you choose by drawing it if that is required. For the Punnett Square label each of the squares Top right Hetzygous, top left dominant, bottom left recessive, bot-tom right homzygous. And for the dichotomous key put a 5-7 length branch showing the animals that have fur, can breathe under water, what cannot or doesn't have those traits. or something similar

Hopefully this helps :)

3 0
3 years ago
Read 2 more answers
Why are koalas so crusty?
marishachu [46]
Koalas are not crusty, but their fur is very coarse, like wool.
Hope this helps.
6 0
4 years ago
Read 2 more answers
A sample of water vapor condenses to form liquid water. What change in water
mel-nik [20]

Answer:

Condensation is the process of water vapor condensing into liquid water.

Explanation:

"Water condenses on a can of cold soda. Water vapor in the air reaches its dew point as it cools in the air around the can, forming liquid drops of water. Condensation is the process where water vapor becomes liquid. It is the reverse of evaporation, where liquid water becomes a vapor." -National Geographic"

7 0
3 years ago
This reaction describes cellular respiration. C6H12O6 + 6O2 → 6CO2 + 6H2O Which compounds are the reactants and which are the pr
kherson [118]
The reactants are C6H12O6 (Glucose) and 6O2 (Oxygen) and the products are 6CO2 (Carbon Dioxide) and 6H20 (Water)
4 0
4 years ago
Read 2 more answers
The pH of a solution is 6.5 . What Is the pOH
REY [17]

Answer:

7.5

Explanation:

6 0
2 years ago
Other questions:
  • According to the information above what is the standard enthalpy of formation for nh3
    10·1 answer
  • Carbon, oxygen and nitrogen are all kinds of
    6·1 answer
  • How many electrons can be contained in the second energy level?
    6·2 answers
  • Calculate the molality of 2.0 M MgCl2 solution. The density of the solution is 1.127 g/mL. (The molar mass of MgCl2 = 95.211 g/m
    15·2 answers
  • Groundwater makes up most of the water on the planet True or false
    12·2 answers
  • A brick has a mass of 1230 grams and a volume of 473 cubic centimeters. What is its density?
    14·1 answer
  • Determine the possible traits of the calves if:
    9·1 answer
  • 5. What mass of aluminum is produced by the decomposition of 6.50<br> kg of aluminum oxide?
    15·1 answer
  • Which compound is a carbohydrate. Nucleotide or protien or starch or amino acid
    15·1 answer
  • The two most abundant atmospheric gases react to a tiny extent at 298 K in the presence of a catalyst:N₂(g) + O₂(g) ⇆ 2NO(g) Kp
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!