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
hichkok12 [17]
3 years ago
12

A 10.50 gram sample of a compound is decomposed to yield 3.40 g Na, 2.37 g S, and 4.73 g O. What is the mass percentage of each

element in this compound?
Chemistry
1 answer:
9966 [12]3 years ago
6 0

Answer:

Na = 32.4% , % S = 22.6% and %O = 45.0%

Explanation:

% Na = 3.4/10.5. × 100%

= 32.4%

%S = 2.37/10.5 × 100%

= 22.6%

% O= 4.73/10.5 × 100%

= 45.0%xplanation:

You might be interested in
A 44.8 g rhodium sample contains how many rhodium atoms
Tresset [83]

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

6 0
3 years ago
Aqua regia, a mixture of HCl and HNO₃, has been used since alchemical times to dissolve many metals, including gold. Its orange
marissa [1.9K]

Aqua regia is an oxidative mixture that is highly corrosive and is composed of hydrochloric acid and nitric acid. The Ea (rev) for the reaction is 3 kJ.

<h3>What is activation energy?</h3>

The activation energy is the minimum required energy by the reactant to undergo changes to form the product. The activation energy of the reverse reaction is given by the difference in the production state and transition state.

It is given as,

Ea (rev) = Ea (fwd) − ΔHrxn

Given,

ΔH° = 83KJ

Ea (fwd) = 86 kJ/mol

Substituting the values above as:

Ea (rev) = 86 - 83

= 3 kJ

Therefore, the activation energy of the reverse reaction is 3 kJ.

Learn more about activation energy, here:

brainly.com/question/14287952

#SPJ4

4 0
1 year ago
a rock dropped in a graduated cylinder raises the level of water from 20 ml to 35 ml. the rock has mass of 45 g. what is the den
adelina 88 [10]

Answer:

15...

Explanation:

6 0
3 years ago
Is the sky a solid,liquid,or gas
DochEvi [55]
The air in the sky and the clouds are gas, however some things in the sky [such as the sun/moon] are solid.
Hope that helped!
5 0
3 years ago
What roles and responsibilities do the media have in reporting human right violation in a responsible manner
Flura [38]

You're question is similar to this one: brainly.com/question/3611487

which already has an answer.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The solar wind can interact with Earth's magnetic field to create powerful electric currents that cause .......... near the pole
    7·1 answer
  • What effect does super critical mass have on a nuclear reaction The reaction rate increases b The reaction produces less energy
    6·2 answers
  • A reaction which forms a gaseous product is an example of a(n)_______
    9·1 answer
  • Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. a particular ore contains 68.5% gal
    9·2 answers
  • How many molecules of he are contained in a 10.0 l tank at 7.53 atm and 485 k?
    12·1 answer
  • Donde se pueden encontrar un río biejo​
    13·1 answer
  • Imagine That you're living in Miami Florida And your family have decided That it's time to move it to the new home. Which of the
    7·1 answer
  • Is Water a mixture or compound​
    10·1 answer
  • How many atoms are in 65.05g of Na?​
    5·1 answer
  • 3 Cu
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!