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
trapecia [35]
3 years ago
14

calculate the volume that will be occupied by 350 ml of oxygen measured at 720 mm hg, when the pressure changed to 630 mm hg

Chemistry
1 answer:
likoan [24]3 years ago
8 0

Answer:

406.45mL

Explanation:

The following data were obtained from the question:

V1 = 350mL

P1 = 720mmHg

P2 = 630mmHg

V2 =?

The new volume can be obtain as follows:

P1V1 = P2V2

720 x 350 = 620 x v2

Divide both side by 620

V2 = (720 x 350) /620

V2 = 406.45mL

The new volume of the gas is 406.45mL

You might be interested in
Define the following IN YOUR OWN HANDWRITING
k0ka [10]

Answer:

A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

Explanation:

5 0
2 years ago
10.How do you make sure there is no cross contamination of your samples of<br> substances?
alexgriva [62]
Have a clean workspace, always wear clean gloves, never reuse or leave Lab wearing gloves, sanitize!
6 0
3 years ago
You purchase a bottle of concentrated sulfuric acid from a chemical supplier. The bottle reads Sulfuric acid (95% w/w) plastic c
My name is Ann [436]

Answer:

The molarity of the sulfuric acid is 0.018 M

Explanation:

The molarity of a solution is the number of moles of the solute (sulfuric acid in this case) in a 1-liter solution.

Every 100 g of the solution, we have 95 g sulfuric acid because its concentration is 95% w/w.

With the density, we can calculate how many liters are 100 g of solution:

density = mass / volume

1.85 g / ml = 100 g / volume

volume = 100 g / 1.85 g/ml

volume = 54.1 ml or 0.0541 l

Now, we know that we have 95 g sulfuric acid in 0.0541 l solution. In 1 l, we have then:

1 l * 95g / 0.0541 l = 1.756 g sulfuric acid.

But we want to know how many moles sulfuric acid we have per liter. Then, using the molar mass, we can calculate how many moles there are in 1.756 g sulfuric acid:

1.756 g * 1 mol / 98.08 g = 0.018 mol

The molarity is 0.018 M

4 0
3 years ago
Is powdered sports drink ionic or covalent ? 10pts !
Dahasolnce [82]
<h3><u>Answer;</u></h3>

Ionic

Powdered sports drink is<u> ionic </u>

<h3><u>Explanation;</u></h3>
  • <em><u>Sports drinks are beverages whose purpose is to help athletes replace water, electrolytes, and energy before and after training or competition.</u></em>
  • Sport drinks contain may contain water, fuel and electrolytes which are used to regulate fluid balances in the body. Electrolytes are molecules that have electrical charge called ions, such as calcium , potassium, sodium and chloride ions.
  • <em><u>Ionic compounds are made up of ions, that is positively charged ions and negatively charged ions which are joined together by ionic bonds. Electrolyte in sport drinks forms ionic bonds.</u></em>
7 0
3 years ago
20g of sugar is stirred into a beaker containing 100 g of water. After the sugar has completely dissolved, the solution is put o
ludmilkaskok [199]
Its D I Think because mass cant really disappear
7 0
3 years ago
Read 2 more answers
Other questions:
  • Chemicals called ______ are those that can combine with h+ when hydrogen ions are in excess, and release h+ when hydrogen ion le
    6·2 answers
  • Hydrochloric is added to a beaker containing a piece of zinc. As a result, zinc chloride is formed and hydrogen gas is released.
    5·1 answer
  • What is the molar concentration of the Br⁻ ions in 0.17 M CaBr2(aq)?
    8·1 answer
  • What's a good science project?
    10·2 answers
  • what is the scientific name for the layer of gas that surrounds the earth A. hydrosphere B. biosphere C. atmosphere D. lithosphe
    14·2 answers
  • how much heat does a titanium block absorb if 15g are heated from 40 C to 65C the specific heat of titanium is .544J/g C
    12·1 answer
  • In which of the following is the number of neutrons correctly represented
    14·1 answer
  • At what time of day would you be most likely to find that the air over water is significantly warmer than the air over land near
    13·1 answer
  • How much of a 2.0 M NaCl solution is needed to make 205.0 mL of 0.15 M NaCl solution?
    14·1 answer
  • How many moles of sodium sulfate will be formed if you start with 3.7 moles of sodium hydroxide?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!