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
BabaBlast [244]
3 years ago
6

A balloon containing 0.10 moles of gas has a volume of 2.0 liters. If temperature and pressure remain constant, what will be the

new volume when 0.40 moles of gas are added to the balloon?
0.50 L
1.0 L
6.0 L
8.0 L
Chemistry
2 answers:
LenKa [72]3 years ago
6 0
Use n1/V1 = n2/V2

.1/2 = .4/V2
.1V2 = .8
V2 = 8 L or D
lorasvet [3.4K]3 years ago
3 0

Answer:The new volume when 0.40 moles of gas are added to the balloon is 8 L.

Explanation:

Initial moles of gas n_1 = 0.10 moles

initial volume of the balloon, V_1 = 2.0 L

Final moles of gas n_2 = 0.40 moles

Final volume of the balloon, V_2 = 2.0 L

Avogadro Law:\frac{n_1}{V_1}=\frac{n_2}{V_2}

V_2=\frac{n_2\times V_1}{n_1}=\frac{0.40 mol\times 2.0L}{0.10 mol}=8.0 L

The new volume when 0.40 moles of gas are added to the balloon is 8 L.

You might be interested in
Which statement best describes what happens during a chemical change?
shutvik [7]
I think the best answer that will describe chemical change is the first option. During a chemical change, b<span>oth the identity and the properties of a substance change because new substances are being formed by a chemical reaction. An example is rusting of steel</span>
4 0
3 years ago
Read 2 more answers
Consider a solution that is 0.05 M HCl. Your goal is to neutralize 1 L of this solution (i.e. bring the pH to 7). You also have
Ilia_Sergeevich [38]

Answer:

The volume of NaOH required is - 0.01 L

Explanation:

At equivalence point ,

Moles of HCl = Moles of NaOH

Considering :-

Molarity_{HCl}\times Volume_{HCl}=Molarity_{NaOH}\times Volume_{NaOH}

Given  that:

Molarity_{NaOH}=5\ M

Volume_{NaOH}=?\ L

Volume_{HCl}=1\ L

Molarity_{HCl}=0.05\ M

So,  

Molarity_{HCl}\times Volume_{HCl}=Molarity_{NaOH}\times Volume_{NaOH}

0.05\times 1=5\times Volume_{NaOH}

Volume_{NaOH}=\frac{0.05\times 1}{5}=0.01\ L

<u>The volume of NaOH required is - 0.01 L</u>

3 0
3 years ago
The ion MnOis often used to analyze for the Fe2+ content of an aqueous solution by using the (unbalanced) reaction Mno+Fe2+ + Fe
dusya [7]

Answer:

B) 0.230 M

Explanation:

The first step is to <u>balance the reaction</u> between the Ferrous ion and the permanganate ion:

5~Fe^+^2~+~MnO_4^-^1~+~8H^+~->~5Fe^+^3~+~Mn^+^2~+4H_2O

Then we have to <u>calculate the moles</u> of MnO_4^-:

M~=~\frac{mol}{L}

mol~=~M*L

mol~=~0.033~M*0.0633L=~0.002088~mol~MnO_4^-

Then using the <u>molar ratio</u> we can find the moles of Fe^+^2:

0.002088~mol~MnO_4^-\frac{5~mol~Fe^+^2}{1~mol~MnO_4^-}=0.01044~mol~Fe^+^2

Finally we can calculate the molarity:

M=\frac{0.01044~mol~Fe^+^2}{0.0455~L}=0.230~M

5 0
3 years ago
What will be the volume occupied by 2.5 moles of nitrogen gas exerting 1.75 atm of pressure at 475K?
Marina86 [1]

Answer:

THE VOLUME OF THE NITROGEN GAS AT 2.5  MOLES , 1.75 ATM AND 475 K IS 55.64 L

Explanation:

Using the ideal gas equation

PV = nRT

P = 1.75 atm

n = 2.5 moles

T = 475 K

R = 0.082 L atm/mol K

V = unknown

Substituting the variables into the equation we have:

V = nRT / P

V = 2.5 * 0.082 * 475 / 1.75

V = 97.375 / 1.75

V = 55.64 L

The volume of the 2.5 moles of nitrogen gas exerted by 1.75 atm at 475 K is 55.64 L

6 0
3 years ago
A intramuscular medication is given at 5.00mg/kg of body weight. What is the dose in grams for a 180-lb patient?
Alex17521 [72]
0.408 gram for 180-lb patient
7 0
4 years ago
Read 2 more answers
Other questions:
  • File:
    5·1 answer
  • 1. Using the Hoffman apparatus for electrolysis, a chemist decomposes 50.5 g of water into its gaseous elements. How many grams
    15·1 answer
  • How many atoms are in 3.50 moles of calcium (Ca)?
    6·2 answers
  • Which explains one reason evaporation can be used to separate a mixture? The desired component has a higher boiling point than t
    5·2 answers
  • 40.0 ml of an acetic acid of unknown concentration is titrated with 0.100 M NaOH. After 20.0 mL of the base solution has been ad
    5·1 answer
  • HELP ME OUT LAST TIME!!!
    14·1 answer
  • 154 pm is greater than 7.7 x10^-9<br> A. True<br> B. False
    8·1 answer
  • The partial symbol for a particular ion is 26M2+ What are the number of electrons contained in one ion
    12·1 answer
  • What is the boiling point for water in degrees celsius?
    9·1 answer
  • Place the following substances in order of increasing vapor pressure at a given temperature. SF6 SiH4 SF4
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!