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
bonufazy [111]
2 years ago
11

1.How many sodium ions are there in 78.6 g of sodium phosphate?

Chemistry
1 answer:
lyudmila [28]2 years ago
6 0

Answer:

two

Explanation:

You might be interested in
A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 1027 g. Use this information to answer the questions below. Be su
Vedmedyk [2.9K]

Answer:

a) 2.4\times 10^{24} kg is the mass of 1 mole of bricks.

b) 2.5\times 10^3 moles of bricks have a mass equal to the mass of the Earth.

Explanation:

a) Mass of brick = 4.0 kg

1 mole = N_A=6.022\times 10^{23} particles/ atoms/molecules

Mass of N_A bricks :

=6.022\times 10^{23}\times 4.0 kg=2.4088\times 10^{24} kg\approx 2.4\times 10^{24} kg

2.4\times 10^{24} kg is the mass of 1 mole of bricks.

b)

Mass of the Earth = M = 6.0\times 10^{27} kg

Mass of 1 mole of brick = m=2.4\times 10^{24} kg

Let the moles of brick with equal mass of the Earth be x.

m\times x=M

x=\frac{M}{m}=\frac{6.0\times 10^{27}kg}{2.4\times 10^{24} kg}=2.5\times 10^3

2.5\times 10^3 moles of bricks have a mass equal to the mass of the Earth.

7 0
3 years ago
Copper is an example of a(n) __________.
navik [9.2K]
The answer is D. element

It's not a mixture, just a pure element. Copper (Cu) is found on the Periodic Table of the Elements, where only ELEMENTS are organized.
7 0
3 years ago
Read 2 more answers
What is the mass of 2.0 moles of CO2
igor_vitrenko [27]
1 mol of CO2 is 44.01g/mol
So multiply that by 2 to get 2 mol of CO2, which is 88.02g
6 0
3 years ago
Why it is important for steel to go through a fluid phase as it is being produced
BigorU [14]
T is important to go through a fluid phase as it is being produced because the object must go through heat to be melted and then it should be put into a mold to be formed. Also, it go though heat to keep it from cracking and go to be cooled and harden.

Read more on Brainly.com - brainly.com/question/1882456#readmore
3 0
3 years ago
How many grams of O are in 605 g of Na,O?
Elden [556K]

Answer:

2Na2O2+2H2O⟶O2+4NaOH

2×78g                           32g

156g of Na2O2 produces 32g of O2,

12g of Na2O2 produces =15632×12=10.66g.

Density of O2 at NTP=1.428g/mL.

DensityMass=Vol.

1.42810.66=7.46mL

Vol. of O2 at NTP is 7.46mL.

Explanation:

mark me as brainlist

6 0
2 years ago
Other questions:
  • Which agent of erosion can create a limestone cave?
    15·2 answers
  • Solid-solid homogeneous mixture give one example
    7·2 answers
  • What is the halogen in period 5?? it has six letters
    7·1 answer
  • How many grams contained on 78.4 moles of neon
    13·2 answers
  • What particles flow through the circuit attached to a battery
    5·2 answers
  • A device that does work with only one movement is a simple machine <br> true or false
    14·1 answer
  • Which statement describes a change that occurs during a chemical reaction?
    8·1 answer
  • Dry air can be liquified at temperatures below 78.8K. This material is an
    6·1 answer
  • What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant
    9·2 answers
  • Select the correct answer.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!