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
PSYCHO15rus [73]
3 years ago
14

Saltpeter is a compound made of potassium(K), nitrogen(N), and oxygen(O). Every 100.0g of saltpeter contains 38.67g potassium an

d 13.86g nitrogen. What is the mass of oxygen contained in 285.0mg of saltpeter? Answer needs to be in grams
Chemistry
1 answer:
Oksanka [162]3 years ago
7 0
Use a proportion ... 
<span>100.0g - 38.67g - 13.86g = 47.47g Oxygen </span>
<span>285.0 mg = 0.285g </span>
<span>47.47/100 = x/0.285g </span>
<span>x = ( 47.47/100) X 0.285g </span>
You might be interested in
Which the following statement ia correct for the equation shown here​
Shkiper50 [21]
B.

As you can see both NO and NH3 have 4 moles therefore it is 4:4 between the molecules or in other words a 1:1 ratio in simplest forms
7 0
3 years ago
Question 6 of 10
Levart [38]

Answer:

C. Solids made of molecules

3 0
3 years ago
Please help if you can !
iogann1982 [59]

Answer:

7630

Explanation:

8 0
3 years ago
Read 2 more answers
On the periodic table, calcium is in group 2. What is true about calcium?
Ray Of Light [21]

Answer:

Explanation:

Calcium is all around us. The average human contains approximately 1kg of calcium, of which 99% is stored in our bones. It is the 5th most abundant element in the earth's crust, occurring widely as calcium carbonate which is more commonly known as limestone. It is also the fifth most abundant dissolved ion in seawater.

6 0
3 years ago
4. A galvanic cell is formed when two metals are immersed in solu- tions differing in concentration 1 when two different metals
emmasim [6.3K]

A galvanic cell is formed when two metals are immersed in solutions differing in concentration 1 when two different metals are immersed.

<h3>What is galvanic cell?</h3>

A galvanic cell is an electrochemical device that transforms chemically generated free energy into electrical energy. A photogalvanic cell produces photochemical species that react to produce an electrical current when connected to an external circuit.

<h3>How does galvanic cell works?</h3>

In order to create a pathway for the flow of electrons via this wire, the galvanic cell makes use of the ability to split the flow of electrons during the processes of oxidation and reduction, forcing a half-reaction and linking each with a wire.

An electrochemical device known as a galvanic cell converts chemical energy from a spontaneous redox response into electrical energy. It possesses an electrical potential of 1.1 V. The anode, which is a negative plate in galvanic cells, is where oxidation takes place. It is a positive plate where lessening takes place.

To learn more about galvanic cell visit:

brainly.com/question/13031093

#SPJ4

8 0
2 years ago
Other questions:
  • What’s the formula equation for
    14·2 answers
  • In what type of solids are the particles not arranged in a regular pattern
    8·1 answer
  • What's the correct way to show carbon dioxide in the gas phase
    5·1 answer
  • If I have a 32 fl oz os a solution that has 62% alcohol, how much of a solution of 91% alcohol do I need to add to get a final s
    7·1 answer
  • For the following reaction, 5.05 grams of copper are mixed with excess silver nitrate. The reaction yields 11.0 grams of copper(
    9·1 answer
  • Is the study of matter and energy ,and the interactions between the two through forces and motion​
    7·2 answers
  • BRAILY I NEED HELP ASAPP
    7·1 answer
  • Cole and his family decide to remove all of the plant material from the ground after the gardening season is over. How could thi
    7·2 answers
  • List 4 significant problems with nuclear power plants.xx
    15·1 answer
  • A bond formed when atoms share electrons is a(n) __________.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!