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
Alenkinab [10]
2 years ago
7

If a helium filled ballon has a volume of 3.4l at 25°c and 1.18atm., what is its volume at STP?​

Chemistry
1 answer:
vladimir2022 [97]2 years ago
5 0

Answer:

3.711 L

Explanation:

The formula you need to use is the following:

\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\

3.4L / 298 K = V2 / 273 K

V2 = 3.711 L

You might be interested in
How many grams of titanium could be obtained from a 27.00 mole sample of Ti6Al4V?
Yakvenalex [24]

#7754.9g#

If the sample was measured in grams, we would first need to convert it to moles and then determine the amount of titanium. Because we already have the sample in a molar quantity, the moles of titanium is simply the formula ratio – 6 moles of titanium per mole of compound.
So, we have #6 xx 27 = 162# moles of titanium. Converting this to mass from the gram molecular weight, we obtain is
#162 xx 47.87 = 7754.9g#
7 0
3 years ago
Read 2 more answers
Tin has ten stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occuring tin atoms. How many atoms of 124Sn are pr
matrenka [14]

The average atomic mass of Sn is 118.71 g/mol

the percentage of heaviest Sn is 5.80%

the given mass of Sn is 82g

The total  moles of Sn will be = mass / atomic mass = 82/118.71=0.691

Total atoms of Sn in 82g = 6.023X10^{23}X0.691=4.16X10^{23}

the percentage of heaviest Sn is 5.80%

So the total atoms of Sn^{124} = 5.80% X 4.16X10^{23}

Total atoms of Sn^{124}=2.41X10^{22} atoms

the mass of Sn^{124} will be = \frac{2.41X10^{22}X124}{6.023X10^{23}}=4.96g

5 0
3 years ago
Assume that the reaction of aqueous hydrobromic acid solution and potassium hydroxide base undergoes a complete neutralization r
Tamiku [17]

Answer:

a.

HBr + KOH → KBr + H  _{2} O

b.

1000 \: ml \: contains \: 0.685 \: moles \\ 55.4 \: ml \: contains \: ( \frac{55.4 \times 0.685}{1000} ) \\  = 0.038 \:moles \\ 1 \: mole \: of \: hydrobromic \: acid  \: produces \: 1 \: mole \: of \: water \\ 0.038 \: moles \: produce \: (0.038 \times 1) \\  = 0.038 \: moles \\ 1 \: mole \: of \: water \: weighs \: 18 \: g \\ 0.038 \: moles \: weighs \: (0.038 \times 18) \: g \\  = 0.684 \: g

c.

0.042 M

d.

1.4

5 0
2 years ago
If thermal energy (heat) must be added to a chemical reaction in order for the reaction to take place, the reaction is _________
Harlamova29_29 [7]
<span>If thermal energy (heat) must be added to a chemical reaction in order for the reaction to take place, the reaction is endothermic. </span>
7 0
3 years ago
The chemical equation may not be balanced with HCI + NaOH
Masja [62]

Answer:

idk

Explanation:

3 0
2 years ago
Other questions:
  • How can you determine the number of valence electrons an atom has
    6·1 answer
  • What is uniform particles ?
    8·1 answer
  • Which type of orbitals overlap to form the sigma bond between c and cl in ch3cl?
    8·1 answer
  • What mass of water can be obtained from 4.0 g of H2 and 16 g of O2?
    5·1 answer
  • What is a climax community? no plagiarism.
    12·2 answers
  • In order for rocks to be classified as igneous, the rocks must​
    15·1 answer
  • 9 Some people say that something that does not
    7·1 answer
  • A 12 gram piece of Cu at 475 oC is placed in contact with a 15 gram piece of Cr at 265 oC.
    14·1 answer
  • If data are from a trusted source and the results are validated by multiple tests, which describes the evidence supporting a sci
    10·1 answer
  • Can anyone help me figure this out
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!