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
NikAS [45]
2 years ago
12

Hot air balloons are open at their lower and end. A basket is suspended from the balloon and can take several passengers as well

as the pilot. A propane burner fixed to the basket is used to heat up the air in the balloon A hot balloon has a volume of 1500 m3 and its volume does not change when the enclosed air is heated.
1) Use the ideal gas equation, pV=nRT. to calculate how many molecules of the balloon contains at a temperature of 10 °C and a pressure 10.1 KP.
2) Calculate the mass of air it contains, assuming an average M of 29.​
Chemistry
2 answers:
makkiz [27]2 years ago
6 0

Answer:

using pv=nRt

Explanation:

p= 10.1 kp

v= 1500m3

n=?

R= 8.314

T= 10 + 273= 283k

pv = nRt

10.1 *1500=n*8.314*283

n= 10.1*1500/8.314*283

n= 15150/2352.862

n= 6.44 moles

2) n= mass/ molar mass

6.44= mass/ 29

mass= 29* 6.44

mass= 186.76g

Flauer [41]2 years ago
5 0

(a) The number of molecules contained by the balloon at the given condition is 6,438.97 moles.

(b) The mass of air in the balloon is 186.73 kg.

The given parameters;

  • <em>volume of the balloon, V = 1500 m³</em>
  • <em>temperature, T = 10⁰C = 273 + 10 = 283 K</em>
  • <em>pressure, = P = 10.1 kPa = 10,100 Pa</em>

The number of molecules contained by the balloon at the given condition is calculated as follows;

PV = nRT

where;

  • <em>R is ideal gas constant = 8.314 J/mol.K</em>
  • <em>n is the number of moles air in the balloon;</em>

n = \frac{PV}{RT} \\\\n = \frac{10,100 \times 1500}{8.314 \times 283} \\\\n = 6,438.97 \ moles

The mass of air in the balloon is calculated as;

n = \frac{m}{M} \\\\m = nM\\\\m = 6,438.97\ moles \ \times \ 29 \ g/mol\\\\m = 186.73 \ kg

Learn more here:brainly.com/question/13248885

You might be interested in
A student Increases the temperature of a 417 cubic centimeter balloon from 278 K to 231 K. Assuming constant pressure what shoul
WITCHER [35]
Initial Conditions:
Volume= v1= 417 cm³
Temperature= T1 = 278 K
 
Final Conditions:
Temperature= T2 = 231K
Volume = v2 =?

Use the general gas equation;

                                        P1*v1/T1 =  P2*v2/T2
As, the temperature is constant;
 So,
                                               v1/T1 = v2/T2
                                              417/278 = v2/231
                                                  v2= 346.5 cm³                                           
5 0
3 years ago
I need you to solve for me plzzzzzz
Sergeu [11.5K]

Answer:

.0556 L

Explanation:

First, convert the 1.35 M to 1.35 mol/L in order for the units to correctly cancel out.

Then, multiply (0.0725 moles Na2CO3/1) times (L/ 1.35 mol).

Finally, the answer will be .0556 L.

<h3 />
3 0
2 years ago
How many electrons does the oxygen atom need to become stable?
NemiM [27]

Answer:

2 electrons

Explanation:

Oxygen has 6 valence electrons and to be stable it needs 8. That means it needs 2 more electrons to have a full octet.

4 0
2 years ago
Read 2 more answers
When 0.200 grams of Al reacts with 15.00 mL of a 0.500 M copper(II) chloride solution, how many moles of solid Cu would be produ
Naddik [55]
When The balanced equation is:
2Al + 3CuCl2 ⇒3 Cu + 2AlCl3
So, we want to find the limiting reactant:
1- no. of moles of 2Al = MV/n = (Wt * V )/ (M.Wt*n*V) = Wt / (M.Wt *n)
        
where M= molarity, V= volume per liter and n = number of moles in the balanced equation.
by substitute: 
∴ no. of moles of 2Al = 0.2 / (26.98 * 2)= 0.003706 moles.
2- no.of moles of 3CuCl2= M*v / n = (0.5*(15/1000)) / 3= 0.0025 moles.
So, CuCl2 is determining the no.of moles of the products.
∴The no. of moles of 3Cu = 0.0025 moles.
∴The no.of moles of Cu= 3*0.0025=  0.0075 moles.
and ∵ amount of weight (g)= no.of moles * M.Wt = 0.0075 * M.wt of Cu
 = 0.0075 * 63.546 =0.477 g


3 0
2 years ago
Forests are the only carbon sinks on Earth. Please select the best answer from the choices provided T F
dmitriy555 [2]
False, as oceans can act as carbon sinks along with forests. 
4 0
3 years ago
Read 2 more answers
Other questions:
  • Click in the answer box to activate the palette. Use the half-reaction method to balance the following equation in acidic soluti
    8·1 answer
  • What is the maxiumum volume of H2 gas at STP that can be produced when 14.0 g of CaH2 and 28.0 g H2O react?
    8·1 answer
  • The element sulfur is classified as a <br> 1.metal<br> 2. metalliod<br> 3.nonmetal<br> 4.noble gas
    11·2 answers
  • I need answers for this question.
    7·1 answer
  • What is the missing part of the chemical equation shown below? acid + base ? salt + ________
    12·2 answers
  • How many milliliters of 0.281 M NaCl solution must be measured to obtain 0.177 mol of NaCl?
    14·1 answer
  • The correct name of the compound with the formula pbo2 is
    10·1 answer
  • Hydrogen and oxygen combine in the ratio of 1:8 by mass to form water. How many grams of hydrogen are needed to react completely
    12·1 answer
  • 3. ¿Cuál de las siguientes operaciones es correcta para calcular el número de moles de hidrógeno necesarios para producir 6 mole
    14·1 answer
  • What type of carbohydrates provide the body with a sustained release of energy?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!