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
aliina [53]
3 years ago
12

You have a fixed container with a volume of 5.00l that contains 35.0 g nitrogen gas (n2). if the temperature is 298 k, calculate

the pressure in the container. r = 0.0821 l atm / mol k
Chemistry
1 answer:
Lunna [17]3 years ago
6 0
Use the formula pv=nRt and you will get the answer
You might be interested in
Calculate the molar concentration of the Cl⁻ ions in 0.87 M MgCl2(aq).
Fed [463]
The compound MgCl2(aq) is ionic which will have the releasing of 2 Cl⁻ ions ions in water for every molecule of MgCl2 that dissolves.
MgCl2(s) --> Mg+(aq) + 2 Cl⁻(aq)
            [Cl⁻] = 0.87 mol MgCl2/1L × 2 mol Cl⁻ / 1 mol MgCl2 = 1.7 M
The answer to this question is [Cl⁻] = 1.7 M
8 0
3 years ago
A 825 g iron block is heated to 352 degrees C and is placed in an insulated container (of negligible heat capacity) containing 4
Stella [2.4K]

Answer : The final equilibrium temperature of the water and iron is, 537.12 K

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

q_1=-q_2

m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)

where,

c_1 = specific heat of iron =  560 J/(kg.K)

c_1 = specific heat of water = 4186 J/(kg.K)

m_1 = mass of iron = 825 g

m_2 = mass of water = 40 g

T_f = final temperature of water and iron = ?

T_1 = initial temperature of iron = 352^oC=273+352=625K

T_2 = initial temperature of water = 20^oC=273+20=293K

Now put all the given values in the above formula, we get:

(825\times 10^{-3}kg)\times 560J/(kg.K)\times (T_f-625K)=-(40\times 10^{-3}kg)\times 4186J/(kg.K)\times (T_f-293K)

T_f=537.12K

Therefore, the final equilibrium temperature of the water and iron is, 537.12 K

8 0
3 years ago
And electro chemical cell has the following standard cell notation:
pochemuha

2Ag⁺(aq) + Mg(s)→ 2Ag(s) + Mg²⁺ (aq)

<h3>Further explanation</h3>

Given

Standard cell notation:

Mg(s) | Mg2+ (aq) || Ag+(aq)| Ag(s)

Required

a balanced redox reaction

Solution

At the cathode the reduction reaction occurs, the anode oxidation reaction occurs

In reaction:  

Ag⁺ + Mg → Ag + Mg²⁺  

half-reactions

  • at the cathode (reduction reaction)

Ag⁺ (aq) + e⁻ ---> Ag (s)  x2

2Ag⁺ (aq) + 2e⁻ ---> 2Ag (s)

  • at the anode (oxidation reaction)

Mg (s) → Mg²⁺ (aq) + 2e−

a balanced cell reaction

<em>2Ag⁺(aq) + Mg(s)→ 2Ag(s) + Mg²⁺ (aq) </em>

5 0
3 years ago
Read 2 more answers
The green light emitted by a stoplight has a wavelength of 505 nm. What is the frequency of this photon? (c = 3.00 × 10⁸ m/s).
Kitty [74]

Answer:

5.9405*10^14 Hz

Explanation:

Remember the equation c=v*λ

v=frequency

λ=wavelength

By manipulating the equation, we can get it in terms of frequency:

c/λ=v

Now convert wavelength to meters (1nm=m*10^-9)

5.05*10^-7m (2 decimal places were shifted to make the number between 1-10, hence the -7 exponent)

Use the manipulated equation:

(3.00*10^8)/(5.05*10^-7), which yields:

5.9405*10^14 Hz (or s^-1)

6 0
3 years ago
As the sun heats the surface of the oceans, two layers of water result. What separates the layers?
Basile [38]

Answer:

Thermocline separate these two layers.

Explanation:

Ocean consist of three major layers on the basis of temperature.

1. Upper layer

2. Deep layer

3. Thermocline

Upper layer:

The first layer is called upper layer which is present on the surface and directly expose to the sun. The sun heat up this upper layer easily and warm it.

Deep layer

The deep layer is present below the thermocline. It is present in deep where sunlight can not approach to it and its temperature remain low.

Thermocline

It is the middle layer, present between the upper and deep layer. It separated the upper layer from deep layer. Its upper portion is warmer while lower is colder.

4 0
3 years ago
Other questions:
  • 932.7 mol ÷ 30.737 L​
    8·1 answer
  • What 2 things make up the cell membrane?
    13·2 answers
  • When is the BEST time to be treated for an STI?
    5·2 answers
  • How many moles of O₂ are needed to react completely with 35.0 mol of FeCl₃? *
    11·1 answer
  • If 16.00 g of O₂ reacts with 80.00 g NO, what is the excess reactant? *<br><br> A.O₂<br> B.NO
    9·1 answer
  • Consider the reaction below 2SO2(g) + O2(g) ⇌ 2SO3(g) At 1000 K the equilibrium pressures of the three gases in one mixture were
    13·1 answer
  • Get the net ionic equation for Na2CO3 + 2HCl = CO2 + H2O + 2NaCl.
    6·1 answer
  • 11. Which of these conditions would decrease the rate of photosynthesis in a plant?
    15·1 answer
  • If the Earth is at a perpendicular angle or right angle to the sun we will be experiencing...??
    8·1 answer
  • How many silver (Ag) atoms are in 3.0 moles of silver?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!