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
Alika [10]
3 years ago
7

What change in volume results if 75.0 mL of gas is cooled from 100.0 °C to 0.00 °C

Chemistry
1 answer:
Ksenya-84 [330]3 years ago
5 0

Answer:

Final volume v2 = 0 ml

Explanation:

Given:

Initial temperature = 100°C

Initial volume = 75 ml

Final temperature = 0°C

Find:

Final volume

Computation:

Using Charles law formula;

⇒ V1 / T1 = V2 / T2

Where

⇒ Initial temperature = T1

⇒ Initial volume = V1

⇒ Final temperature = T2

⇒ Final volume = V2

So,

⇒ 75 / 100 = V2 / 0

Final volume v2 = 0 ml

You might be interested in
5 H2O2(aq) + 2 MnO4-(aq) + 6 H+(aq) → 2 Mn2+(aq) + 8 H2O(l) + 5 O2(g) In a titration experiment, H2O2(aq) reacts with aqueous Mn
Tomtit [17]

Answer:

Oxygen in hydrogen peroxide oxidizes from -1 to 0.

Explanation:

Oxidation is the loss of electrons. The specie which is oxidized has has elevation in its oxidation state as compared in the reactant and the products.

The given reaction is shown below as:

5 H_2O_2_{(aq)} + 2 MnO_4^-_{(aq)} + 6 H^+_{(aq)}\rightarrow 2 Mn^{2+}_{(aq)} + 8 H_2O_{(l)} + 5 O_2_{(g)}

Manganese in MnO_4^- has oxidation state of +7

Manganese in Mn^{2+} has an oxidation state of +2

It reduces from +7 to +2

Oxygen in hydrogen peroxide has an oxidation state of -1.

Oxygen in molecular oxygen has an oxidation of 0.

Thus, oxygen in hydrogen peroxide oxidizes from -1 to 0.

8 0
3 years ago
Consider the gold isotope 197Au. How many electrons, protons, and neutrons are in a neutral 197Au atom?
tangare [24]

Answer:

The 197Au isotope has 79 protons, 79 electrons and 118 neutrons

Explanation:

Step 1: The isotope = 197Au

Step 2: Calculate neutrons, electrons and protons

197 = Number of protons + number of neutrons

Isotopes always have the same proton number ( is the same as the atomic number). For Gold (Au) is this 79.

The number of electrons is equal to the number of protons in a neutral atom. Since we have 79 protons, there are also 79 electrons.

All isotopes of Au have a different number of neutrons.

The number of neutrons = 197 -79 = 118 neutrons

The 197Au isotope has 79 protons, 79 electrons and 118 neutrons

6 0
3 years ago
8. A party-supply store sells a helium-gas
MatroZZZ [7]

Answer:

P₂= 116.7 atm

Explanation:

Here apply the Boyle's law equations that states :at constant temperature the volume of a dry mass of a gas is inversely proportional to its pressure.

This is simplified as;

P₁V₁=P₂V₂ where P is pressure and V is volume

Given that;

P₁=1

V₁=1.81 m³

P₂=?

V₂=1.55*10^-2 m³

Apply the formula

1*1.81 =P₂*1.55*10^-2 m³

1.81/1.55*10^-2  =P₂

P₂= 116.7 atm

7 0
3 years ago
What happens when a gamma ray is emitted from nucleus of an atom
Masja [62]

Answer:

The emission of gamma rays does not alter the number of protons or neutrons in the nucleus but instead has the effect of moving the nucleus from a higher to a lower energy state (unstable to stable). Gamma ray emission frequently follows beta decay, alpha decay, and other nuclear

Explanation:

because im smart

8 0
4 years ago
Convert 25 mg to unit HG
Degger [83]
Your answer would be 250,000
6 0
3 years ago
Other questions:
  • Why is each year's vaccine different?
    5·2 answers
  • Ethylene glycol (antifreeze) has a density of 1.11 g/cm^3. What is the volume in liters of 3.46 kg of ethylene glycol?
    14·2 answers
  • What is meant by "the energy of an electron is quantized"?
    6·2 answers
  • Which statement best compares a gamma ray to a radio wave?
    8·1 answer
  • How many valence electrons does an atom of al possess?
    8·1 answer
  • Which shows the correct order of increasing trophic level, from producer to tertiary consumer?
    6·2 answers
  • Hard water often contains dissolved Mg2+and Ca2+ions. Water softeners often use sodium carbonate to soften the water. Sodium car
    12·1 answer
  • Which type of weathering occurs most frequently at high elevations, and can bring mountains down to sea level over time?
    5·1 answer
  • A car moved 20 km East and 60 km West. What is the distance?
    13·1 answer
  • if anyone has chemistry on edge and has the analyzing chemical reactions project can i please have your insta? i really need it.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!