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
Andre45 [30]
3 years ago
8

The volume of a 2.49 g sample of gas is 752 mL at 1.98 atm and 62 C What is the gas?

Chemistry
1 answer:
creativ13 [48]3 years ago
6 0

Answer:

The volume of a sample of gas (2.49 g) was 752 mL at 1.98 atm and 62∘C 62 ∘ C .

You might be interested in
Convert 3.30 g of copper (II) hydroxide Cu(OH)2 to molecules.
ratelena [41]

Answer:

0.18× 10²³ molecules

Explanation:

Given data:

Mass of copper hydroxide = 3.30 g

Number of molecules = ?

Solution:

Number of moles = mass/molar mass

Number of moles = 3.30 g/97.56 g/mol

Number of moles = 0.03 mol

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

0.03 mol × 6.022 × 10²³ molecules / 1mol

0.18× 10²³ molecules

6 0
2 years ago
PLEASE HELP!!!
NNADVOKAT [17]

When you are collecting DNA, you could be looking for a few different things. A few examples could be skin cells, strands of hair, or possibly even a fingernail. Anything that comes from a person, including blood or saliva can be potential DNA that could help investigators to link a person back to a crime.

Investigators do not need a warrant for analyzing crime scenes due to the fact of the dangers of the fire. You must work quickly because accelerants tend to evaporate within days, sometimes hours. It is also important to note that finding the origin of the fire is very important, to make sure it won't be reignited. Debris is usually cleaned away quickly to ensure health and safety issues.

The point of origin of a fire is the lowest point, since fire burns upwards.

High explosive: Ignite almost instantly, like dynamite and TNT. Two different types are primary and secondary.

<em>Primary: easily ignited, very sensitive to heat and friction. often used to ignite other explosives. </em>

<em>Secondary: much less sensitive to heat and friction, might be ignited using other explosive materials. TNT and dynamite are both secondary. </em>

Low explosive: decompose slowly and include black and smokeless powder. They are the most common type of explosives, and are readily available.

4 0
3 years ago
Is radium flammable?
rewona [7]

Answer:

no

Explanation:

Radium is silvery, lustrous, soft, intensely radioactive. It readily oxidizes on exposure to air, turning from almost pure white to black. Radium is luminescent, corrodes in water to form radium hydroxide. Although is the heaviest member of the alkaline-earth group it is the most volatile.

4 0
3 years ago
Charged atom or particle
GenaCL600 [577]

Answer:

for what

Explanation:

7 0
2 years ago
Read 2 more answers
WILL GIVE BRAINLIST NEED ASAP
Nookie1986 [14]

V=n/M

V=2.5/6=0.416 L

7 0
2 years ago
Other questions:
  • You observe heat, light, and sound released by a chemical reaction. This reaction is (2 points)
    13·1 answer
  • How much heat is required to vaporize 43.9 g of acetone at its boiling point?
    6·2 answers
  • 6. Which of the following statements is not true for an astronomical unit?
    5·2 answers
  • I need lots of help owo
    10·2 answers
  • Where is the energy in the products of photosynthesis?
    14·2 answers
  • Determine the ground-state electron configuration and bond order for each of the Period 2 diatomic molecules. Specify which MO i
    8·1 answer
  • In the chemical equation H, O2 (aq) --&gt; H2O(1) + O2(g), the O2 is a
    6·1 answer
  • Fish, amphibians, reptiles, birds, and mammals have similar embryos. They all start with gill slits. Fish and some amphibians gr
    5·1 answer
  • 40.0 L of oxygen were collected at 10°C and<br> 758 mm of Hg. Calculate its volume at STP.
    15·1 answer
  • What test was used to identify hydrogen gas? Write a balanced equation to represent the test?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!