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
Andreas93 [3]
2 years ago
7

La masa molar del hidróxido de sodio (NaOH) es 40 g/mol. ¿Qué masa de este compuesto se necesita para producir 2,5 litros de una

disolución 2 mol/L?
Chemistry
1 answer:
Leya [2.2K]2 years ago
4 0
Go to the spanish site because I don’t think people here would be able to answer
You might be interested in
Explain the changes that take place at the molecular level when a substance is superheated or supercooled ?
Katyanochek1 [597]
Only gas or vapor can be superheated. Use water as an example. Water at sea level boils at 212 degrees F. When heated to 212 degrees F, the molecules that make up water are moving at a high enough speed that they overcome the air pressure above the water. And for supercooled only liquids or solids can be supercooled for example Liquid water at sea level has a saturation (boiling) temperature of 212 degrees F. If we were to add heat to the saturated water, it would first boil away with no change in temperature (remember latent heat?) and then become superheated if still more heat were added to the vapor (steam) after it had all turned to a vapor.
4 0
3 years ago
An isotope of an element whose number of protons and neutrons place it on the edge of the Island of Stability is most likely
adoni [48]

Answer:

The composition of a nuclide (atomic nucleus) is defined by the number of protons Z and the number of neutrons N, which sum to mass number A.Proton number Z, also named the atomic number, determines the position of an element in the periodic table.The approximately 3300 known nuclides are commonly represented in a chart with Z and N for its axes and the half-life for radioactive decay

Explanation:

5 0
3 years ago
Earth's minerals have been found in concentrated amounts at the boundaries of tectonic plates: an occurrence that results from t
vlabodo [156]
Answer:a is the answer
3 0
3 years ago
What does a banana have that a human does not?
Vikentia [17]
It would be a face or toes
7 0
3 years ago
Read 2 more answers
Using standard heats of formation, calculate the standard enthalpy change for the following reaction. 2NH3(g) 3N2O(g)4N2(g) 3H2O
trasher [3.6K]

Answer: \Delta H^{0} = -879.15 kJ/mol

Explanation: <u>Heats</u> <u>of</u> <u>formation</u> is the amount of heat necessary to create 1 mol of a compound from its molecular constituents. The basic conditions the substance is formed is at standard conditions: 1 atm and 25°C. Each compound has its own heat of formation per mol of compound (kJ/mol), but to an element is assigned a value of zero.

<u>Standard</u> <u>Enthalpy</u> <u>Change</u> is defined as the heat absorbed or released when a reaction takes place. It can be positive or negative, which means reaction is endothermic or exothermic, respectively.

Enthalpy change is calculated as the difference between the sum of heat formation of products and the sum of heat formation of the reactants:

\Delta H^{0}=\Sigma H^{0}_{f}_{(products)}-\Sigma H^{0}_{f}_{(reactants)}

For the reaction

   2NH₃   +      3N₂O   →      4N₂    +     3H₂O

2(-46.2)   +     3(82.05)      4(0)    +    3(-241.8)

\Delta H^{0}=3(-241.8)-[ 2(-46.2)+3(82.05)]

\Delta H^{0}=-725.4-153.75

\Delta H^{0}=-879.15

<u>The standard enthalpy change for the reaction is </u>\Delta H^{0}=-879.15<u> kJ</u>

8 0
2 years ago
Other questions:
  • Whta gasses are in Neptune?
    13·1 answer
  • What are the spectator ions in Mg(s) + Zn2+ + 2NO3 → Mg2+ + 2NO3 + Zn(s)?
    7·1 answer
  • A frog is an amphibian because they can. Live both in land and water.what is that observation or inference
    10·1 answer
  • the compound nacI is an example of a /an.. (A)covalent bond (B)Ionic bond (C) Metallic bond (D) none of the above
    8·1 answer
  • You have an atom with 3 protons ,4 neutrons ,and 3 electrons .adding a neutron will ...
    7·2 answers
  • Which scenario BEST describes how an atom produces light?
    8·1 answer
  • Suppose you take a trip to a distant universe?...
    8·2 answers
  • I WILL GIVE BRAINLY IF U HELP ME WITH THIS LITTLE PASSAGE
    14·1 answer
  • Bridget performed an investigation to determine if a television set transformed electrical energy into other types of energy. Sh
    9·1 answer
  • Convert the following word equation into a formula equation
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!