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
Stolb23 [73]
3 years ago
7

What volume would a 0.871 gram sample of air occupy if the density of air is 1.29 g/L?

Chemistry
2 answers:
-Dominant- [34]3 years ago
7 0

Answer:

\boxed{\text{675 mL}}

Explanation:

V = \text{0.871 g} \times \dfrac{\text{1 L}}{\text{1.29 g}} = \text{0.675 L} = \textbf{675 mL}\\\\\text{The volume of air is } \boxed{\textbf{675 mL}}

IgorLugansk [536]3 years ago
3 0

Answer : The volume of the sample of air will be 0.675 L

Explanation :

Density : It is defined as the mass of a substance contained per unit volume.

Formula used :

Density=\frac{Mass}{Volume}

Given:

Mass of sample of air = 0.871 g

Density of air = 1.29 g/L

By using formula, we get:

1.29g/L=\frac{0.871g}{Volume}

Volume=0.675L

Thus, the volume of the sample of air will be 0.675 L

You might be interested in
A sample of 53.0 of carbon dioxide was obtained by heating 1.31 g of calcium carbont. What is the percent yield for this reactio
MaRussiya [10]

Answer:

92.04%

Explanation:

Given:

Mass of CO₂ obtained = 53.0 grams

Mass of calcium carbonate heated = 1.31 grams

Now,

the molar mass of the calcium carbonate = 100.08 grams

The number of moles heated in the problem = Mass  / Molar mass

= (1.31 grams) / (100.08 grams/moles)

= 0.013088 moles

now,

1 mol of calcium carbonate yields 1 mol of CO₂

thus,

0.013088 moles of calcium carbonate will yield = 0.013088 mol of CO₂

now,

Theoretical mass of 0.013088 moles of CO₂ will be

= Number of moles × Molar mass of CO₂

= 0.013088 × 44 = 0.5758  grams

Thus, the percent yield for this reaction = \frac{\textup{Actual yield}}{\textup{Theoretical yield}}\times100

or

the percent yield for this reaction = \frac{0.53}{0.5758}\times100

or

the percent yield for this reaction = 92.04%

6 0
3 years ago
As a gas changes to a solid, energy<br> A. is not used.<br> B. is released.<br> C. is absorbed.
pogonyaev

Answer:

B

Explanation:

Energy is released, when a gas changes to solid

7 0
2 years ago
Mass is measured in= a. Liters b. centimeters c. newtons d. kilograms
ale4655 [162]
Mass is measured in kilograms.
5 0
2 years ago
Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife​
yuradex [85]

Answer:

\boxed{\text{2408 min}}

Explanation:

The integrated rate law for radioactive decay is

\ln\dfrac{N_{0}}{N_{t}} = kt

1. Calculate the decay constant

\begin{array}{rcl}\ln \dfrac{100}{90} & = & k \times 366\\\\1.054 & = & 366k\\\\k & = & \dfrac{1.054 }{366}\\\\k & = & 2.879 \times 10^{-4} \text{ min}^{-1}\\\end{array}\\\\

2. Calculate the half-life

t_{\frac{1}{2}} = \dfrac{\ln2}{k}\\\\t_{\frac{1}{2}} = \dfrac{\ln2}{2.879 \times 10^{-4} \text{ min}^{-1}} = \text{2408 min}\\\\\text{The half-life for decay is } \boxed{\textbf{2408 min}}

8 0
3 years ago
Who like math ? Cause I don’t.
seraphim [82]

Answer: it honestly depends.

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • What is the temperature change on a 75.0 gram sample of mercury if 480.0 cal of heat are added to it? The specific heat of mercu
    8·1 answer
  • Your window thermometer shows that the temperature outdoors is 87.3°f. how should you report this temperature to your friend in
    10·1 answer
  • Which of the following equations violates the law of conservation of mass?. . 2Al + 6HCl----&gt; 2AlCl3 + 3H2. . Na2C2O4 + Pb(NO
    12·1 answer
  • In order to be considered science, something must be
    6·1 answer
  • What is the velocity baseball field to school
    14·1 answer
  • Appreciate every help~ thank you ❤️
    9·1 answer
  • Why are scientists worried that climate change will cause these toxic algae blooms to become more frequent?
    8·2 answers
  • The author wanted to revise this story to allow readers to understand more fully how Coach Wilkins felt about the banquet and hi
    6·2 answers
  • Rocks that form from lava does not contain fossils. Explain why
    11·1 answer
  • Why are experimental investigations the best type of scientific investigation to demonstrate cause-and-effect relationships? ple
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!