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
Pavlova-9 [17]
3 years ago
8

if 3.26 g of FeNO33 is dissolved in enough water to make exactly what is the molar concentration of nitrate ion g

Chemistry
1 answer:
Tanzania [10]3 years ago
5 0

Answer:

0.404M

Explanation:

...<em>To make exactly 100.0mL of solution...</em>

Molar concentration is defined as the amount of moles of a solute (In this case, nitrate ion, NO₃⁻) in 1 L of solution.

To solve this question we need to convert the mass of Fe(NO₃)₃ to moles. As 1 mole of Fe(NO₃)₃ contains 3 moles of nitrate ion we can find moles of nitrate ion in 100.0mL of solution, and we can solve the amount of moles per liter:

<em>Moles Fe(NO₃)₃ -Molar mass: 241.86g/mol-:</em>

3.26g * (1mol / 241.86g) =

0.01348 moles Fe(NO₃)₃ * (3 moles of NO₃⁻ / 1mole Fe(NO₃)₃) =

<em>0.0404 moles of NO₃⁻</em>

In 100mL = 0.1L, the molar concentration is:

0.0404 moles of NO₃⁻ / 0.100L =

<h3>0.404M</h3>
You might be interested in
Think about what you've learned about how particle motion is related to temperature.
statuscvo [17]

Answer:

1& 4

Explanation:

1. The average kinetic energy of the particles in a substance determines the substance's temperature.

4. How fast a substance's particles are moving determines how hot or cold the substance is.

8 0
3 years ago
IS IT TRUE?that the moon collided with a tiny plant made of rubble from earth's collision with another planet that made the moon
Nikolay [14]
That is currently unknown, because we don't have anyone who lived them with that knowledge, but based on some facts of Guessing. I would say yes, because another planet near Earth right, well from what I heard, the asteroid that killed the dinos, had another part recoil back into space, and could have hit another part of the asteroid.
8 0
3 years ago
Last question anyone??
galben [10]

Answer:

3=8908-=698=49=304=+74950=405=0381=01=20

55555%

Explanation:

3 0
3 years ago
Which direction does the decimal move from mega meters to meters
Temka [501]

To solve this problem, let us first understand what does mega meters mean. Now by definition, mega means a factor of one million which is a unit prefix in Metric Systems of units. It is denoted by the unit symbol M.

So for example if we have a mega of something, it means a million of something. So in this case, if we have 1 mega meter, what it means is 1 million meter, which is written as:

1 mega meter = 1,000,000 meter

 

To show the decimal points:

1.0 mega meter = 1,000,000.0 meter

 

So we see that the decimal point move 6 zeroes to the right, therefore the direction is to the right.

 

Answer:

<span>6 places to the right</span>

7 0
4 years ago
Fructose-2,6-bisphosphate is a regulator of both glycolysis and gluconeogenesis for the phosphofructokinase reaction of glycolys
azamat

Answer: Glycolysis is stimulated by a high concentration of fructose-2,6-bisphosphate, and the gluconeogenesis is stimulated by a low concentration of fructose-2,6-bisphosphate.

Explanation: Fructose-2, 6-bisphosphate (F2, 6P) is an allosteric activator of the key enzyme in the glycolysis cycle, phosphofructokinase (PFK). F2, 6P also acts as an inhibitor of fructose bisphosphate phosphatase (FBPase) in gluconeogenesis. The concentration of F2, 6P is governed by the balance between its synthesis and breakdown, catalysed by phosphofructokinase-2 (PFK-2) and fructose-bisphosphatase-2 (FBPase-2), respectively. These enzymes are found in a dimeric protein and are controlled by a phosphorylation/dephosphorylation mechanisms. Phosphorylation of the dimeric protein results in an increased concentration of FBPase-2, leading to a decreased concentration of F2, 6P, thus activating the gluconeogenesis cycle. The concentration of PFK-2 is increased when the dephosphorylation of the dimeric protein takes place, leading to the increased concentration of F2, 6P, thus stimulating glycolysis cycle.

8 0
3 years ago
Other questions:
  • Why does Earth have a liquid water supply and Venus does not?
    7·2 answers
  • All six carbon-carbon bonds in aromatic rings are equivalent; they are each somewhere between a single bond and a double bond. T
    14·1 answer
  • john can cover 84 cm with each stride he takes while running. If he runs 2.5 km, how many strides will he need to take
    14·1 answer
  • What’s the molarity of a solution created by dissolving 0.60 moles of KCL in 2.0 L of water
    10·1 answer
  • Explain the following observation. Treatment of alkyl chloride A with NaOCH2CH3 yields only one product B, whereas treatment of
    6·1 answer
  • Archimedes tells us the lifting power of a balloon (how much mass it can lift) is equal to the difference between the mass of th
    10·1 answer
  • Add 250.0mL to 5.00mL and round off the answer
    7·1 answer
  • How are plant and animal structures similar?
    15·1 answer
  • How many grams are in 8.3 moles of CaCl2?
    11·2 answers
  • Water is important in chemical weathering because _______
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!