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
SSSSS [86.1K]
3 years ago
6

What is the molarity of a solution that contains 2.38 g of h2c2o4 * 2h2o in exactly 300 ml of solution?

Chemistry
1 answer:
lianna [129]3 years ago
6 0
Data Given:
                  Mass of H₂C₂O₂.2H₂<span>O  =  2.38 g

                  M.mass of </span>H₂C₂O₂.2H₂O  =  126 g/mol

                  Volume  =  300 ml  =  0.3 dm³

Solution:
             Molarity is given as,
 
                               Molarity  =  Moles / Vol. of Sol.
Or,
                               Molarity  =  (Mass / M.mass) × (1 / Vol)
Putting Values,
                               Molarity  =  ( 2.38 g ÷ 126 g/mol ) × ( 1 ÷ 0.3 dm³ )

                               Molarity  =  0.063 mol/dm³
You might be interested in
Anil accidentally swallows a substance that activates the complement cascade in the absence of bound antibodies. this substance
ale4655 [162]

Answer:

This substance would cause cause an extensive cellular damage to Anil.

5 0
1 year ago
2Na3N3 -&gt; 2Na + 3N2<br><br> if 0.58 mol if NaN3 reacts, what mass of nitrogen would result
Ronch [10]

Answer:

                      Mass = 24.36 g of N₂

Explanation:

                   The balance chemical equation for the decomposition of NaNO₃ is as follow;

                                           2 NaN₃ → 2 Na + 3 N₂

Step 1: Find moles of N₂ as;

According to equation,

                 2 moles of NaNO₃ produces  =  3 moles of N₂

So,

              0.58 moles of NaNO₃ will produce  =  X moles of N₂

Solving for X,

                      X = 3 mol × 0.58 mol / 2 mol

                      X = 0.87 mol of N₂

Step 2: Calculate mass of N₂ as,

Mass = Moles × M.Mass

Mass = 0.87 mol × 28.01 g/mol

Mass = 24.36 g of N₂

8 0
3 years ago
How do elements heavier than iron form?
Vilka [71]

Answer:

<h2><u>neutron capture </u></h2>

<u></u>

Explanation:

<em>Hope this helps :)  </em>

<em>Pls make brainliest :3  </em>

<em>And have an amazing day <3</em>

4 0
2 years ago
What did Josef Loschmidt and Amedeo Avogadro Contribute to our understanding of basic molecular numbers, sizes, and reaction rat
mario62 [17]

From Avogadro we obtained a physical constant of matter which is Avogadro's number, and from both scientists we understand that elementary gases such as hydrogen, nitrogen, and oxygen were composed of two atoms.

<h3>What is Avogadro's number?</h3>

Avogadro's number, or Avogadro's constant, is the number of particles found in one mole of a substance.

The Avogadro's number is given as 6.02 x 10²³.

Summary of Josef Loschmidt and Amedeo Avogadro Contribution to chemistry.

  • Equal volumes of gas contain equal numbers of molecules,
  • Elementary gases such as hydrogen, nitrogen, and oxygen were composed of two atoms.

Thus, from Avogadro we obtained a physical constant of matter which is Avogadro's number, and from both scientists we understand that elementary gases such as hydrogen, nitrogen, and oxygen were composed of two atoms.

Learn more about Avogadro's here: brainly.com/question/1581342

#SPJ1

4 0
2 years ago
Use the following scenario to answer the question: A cell has an antiport protein on its apical surface. The cell is placed in a
balu736 [363]

Answer:

The correct answer is "Secondary active transport".

Explanation:

Secondary active transport is a form of across the membrane transport that involves a transporter protein catalyzing the movement of an ion down its electrochemical gradient to allow the movement of another molecule or ion uphill to its concentration/electrochemical gradient. In this example, the transporter protein (antiporter), move 3 Na⁺ into the cell in exchange for one Ca⁺⁺ leaving the cell. The 3 Na⁺ are the ions moved down its electrochemical gradient and the one Ca⁺⁺ is the ion moved uphill its electrochemical gradient, because Na+ and Ca⁺⁺are more concentrated in the solution than inside the cell. Therefore, this scenario is an example of secondary active transport.

6 0
2 years ago
Other questions:
  • Elements from group/column ______ will ionically bond with halogens in a 1 to 1 ratio. A) 1 (or 1A) B) 2 (or 2A) Eliminate C) 3
    6·2 answers
  • For the question(s) that follow, consider the following equation. Mg3N2(s) + 6H2O(l) → 3Mg (OH)2(s) + 2NH3(g) What is the correc
    11·1 answer
  • Which of the following is a example of an inherited behavior
    12·1 answer
  • Ca(s) + O2(g) -<br><br> O A. Cao(s)<br> B. Ca2O(s)<br> O C. 2Ca(s) + O2(g)<br> O D. CaO2(s)
    9·1 answer
  • A scientist who collects and analyzes DNA from a crime scene is a
    7·2 answers
  • what is the answer, don't have to show proof but explain how that's all!!!!!! will mark brainliest this is science class by the
    7·1 answer
  • If you decreased the volume of a sample of gas by a factor of three while maintaining a constant
    11·2 answers
  • What happen when molten zinc bromide is electrolysised
    14·1 answer
  • What is the acceleration of 1 m/s?
    13·2 answers
  • When light waves pass through solids, the speed of the wave ___________.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!