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
skelet666 [1.2K]
3 years ago
8

How many moles are there in 987 grams of Ra(OH)2? id also love to know the simplest equation for converting moles --> so i co

uld practice on my own :)
Chemistry
1 answer:
OlgaM077 [116]3 years ago
6 0
Mole = \frac{mass}{molar mass}

Mass of Radium Hydroxide = 987g
Molar Mass of Ra(OH) _{2} = ((226) + (2 * 16) + (2 * 1))
                                            =  260 g / mol

∴  Moles of <span>Ra(OH) _{2} = </span>\frac{987 g }{ 260 g / mol }
                                            = 3.796 mols
You might be interested in
What is the approximate percentage of nitrogen in<br> the Earth's current atmosphere?
RoseWind [281]

Answer:

78% nitrogen

Explanation:

It has been long agreed upon that our atmosphere is highly abundant with nitrogen. Our atmosphere is composed of  78% nitrogen and then other gases follow such as 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements.

7 0
3 years ago
How can i make an aloe vera hair mask​
Shtirlitz [24]
Mix aloe vera and honey or olive oil if you want. the internet says yogurt but thats disgusting so dont do that but if you wanna do that then thats fine go for it.
5 0
3 years ago
What is unique about the nitrogen family
ankoles [38]
Nitrogen molecule is diatomic, whereas other elements form tetraatomic molecules.
7 0
3 years ago
Read 2 more answers
True or False? <br><br> A day is about 12 hours long
7nadin3 [17]

Answer:

false it's 24 hours long.

7 0
3 years ago
A worker at a nuclear power plant has noticed that his dosimeter alarm has
Sphinxa [80]

Answer:

Radiation is being released from the reactor.

Explanation:

( A P E X )

5 0
3 years ago
Other questions:
  • Which compound(s will not form a yellow precipitate when treated with excess iodine in the presence of naoh?
    6·1 answer
  • Write a sentence that descrices how to determine the number of moles of a compound in known mass of a
    14·1 answer
  • By increasing the length of heat exchanger, the effectiveness and cold stream output temperature of the heat exchanger
    10·1 answer
  • PLEASEEE HELP !!!!<br><br> what physical changes might happen in the aquaponic system
    15·1 answer
  • What is the formula for the compound iodine trichoride?
    5·1 answer
  • Why do girls like boys who act rude more than boys that are actually nice!
    10·2 answers
  • What happens to that atom of magnesium-24 if it GAINS an ELECTRON?
    9·1 answer
  • Hurry i only have till today to finsh this!
    8·2 answers
  • Is alka seltzer and acid or a base or netural
    7·1 answer
  • (1.) If at 100.0 mL solution contains 0.850 moles of a solute, what is the molarity ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!