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
vekshin1
3 years ago
9

A gas sample at 83 °C occupies a volume of

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
8 0

Answer:

1800

Explanation:

because u have to do the mulipication

You might be interested in
6. A box measures 11.25 inches in length, 8.1 inches in width and 6.85 inches in height. What is the
denis23 [38]

Answer:

I'd say 624.2^3 inches.

Explanation:

3 0
3 years ago
In what type of climate do trees produce narrower rings?
poizon [28]

Answer:

cool and dry

                 

               

8 0
2 years ago
Calculate the standard reaction enthalpy for the reaction NO2(g) → NO(g) + O(g) given +142.7 kJ/mol for the standard enthalpy of
bulgar [2K]

Answer:

The standard reaction enthalpy for the given reaction is 235.15 kJ/mol.

Explanation:

O_2(g) \rightarrow \frac{2}{3}O_3(g),\Delta H^o_{1}=142.7 kJ/mol..[1]

O_2(g) \rightarrow 2 O(g),\Delta H^o_{2}=498.4 kJ/mol..[2]

NO(g) + O_3(g)\rightarrow NO_2(g) + O_2(g) ,\Delta H^o_{3} = -200 kJ/mol..[3]

NO_2(g)\rightarrow NO(g) + O(g),\Delta H^o_{4}=?..[4]

Using Hess's law:

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

2 × [4] = [2]- (3 ) × [1] - (2) × [3]

2\times \Delta H^o_{4}=\Delta H^o_{2} -3\times \Delta H^o_{1}-2\times \Delta H^o_{3}

2\times \Delta H^o_{4}=498.4 kJ/mol-3\times 142.7 kJ/mol-2\times -200 kJ/mol

2\times \Delta H^o_{4}=470.3 kJ/mol

\Delta H^o_{4}=\frac{470.3 kJ/mol}{2}=235.15 kJ/mol

The standard reaction enthalpy for the given reaction is 235.15 kJ/mol.

7 0
3 years ago
Which of these reactions involves an acid and a covalent base?
Juli2301 [7.4K]
I think the correct answer would be D. The reaction that involves an acid and a covalent base would be the reaction of sulfuric acid and water or H2SO4 + 2H2O → 2H3O+ + SO42– . The acid would be H2SO4 and the covalent base would be H2O since it is being held by covalent bonds and when in solution it will have equal amounts of OH- and H+ ions.
5 0
3 years ago
How many molecules of water can fit in one teaspoon?
34kurt
About 5 millimeters which weighs about 5 grams. Hope this helps! ^-^

4 0
3 years ago
Other questions:
  • Which of these properties would be possessed by both acids and bases? note: we do not mean mixing both in the same solution. we
    5·1 answer
  • Ernest Rutherford discovered that atoms were mostly:
    6·2 answers
  • A thin sheet of aluminum can block _____.
    15·1 answer
  • Ann believes that carbohydrates store more energy than lipids. Nicco believes that lipids store twice as much energy as carbohyd
    8·2 answers
  • A compound is found to contain 11.21 % hydrogen and 88.79 % oxygen by mass. What is the empirical formula for this compound?
    6·2 answers
  • The iodine "clock reaction" involves the following sequence of reactions occurring in a reaction mixture in a single beaker. 1.
    6·1 answer
  • 8th grade science
    7·2 answers
  • Which two systems in the human body work together to eliminate carbon dioxide from the body?
    6·2 answers
  • Pasagot plizzz kung sino makasagot ng tamang sagot ibebrainliest ko​
    7·1 answer
  • What part of the underside of a gecko's feet
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!