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
pychu [463]
3 years ago
5

Gasoline has a density of 0.749 g/mL . There are 454 grams in a pound and 3.7854 L in a gallon. How many Pounds does 19.2 gallon

s of gasoline weigh?
Respond with correct number of significant figures in "E" notation.
Chemistry
1 answer:
Nikolay [14]3 years ago
5 0

Answer:

119.9 pounds

Or 1.199e2 in E notation

Explanation:

First, find the total amount of liters.

3.7854 x 19.2 = 72.67968

There are 72.67968 liters of gasoline

Then, convert the liters to milliliters

72.67968 x 1000 = 72,679.68

There are 72,679.68 milliliters of gasoline

Now, convert it to grams

72,679.68 x 0.749 = 54,437.08032

There are 54,437.08032 grams of gasoline

Convert the grams to pounds

54,437.08032 ÷ 454 = 119.9054632599119

Round it with sig figs and you will find out the weight of the gasoline is 119.9 pounds.

You might be interested in
Pleas help I’ll mark Brainlyist <3
SashulF [63]
I think the answers A
4 0
3 years ago
Covalent bond of N and S
Mademuasel [1]

Answer:

Covalent bond between identical atoms

Covalent bonds occur between identical atoms or between different atoms whose difference in electronegativity is insufficient to allow transfer of electrons to form ions. ... The two hydrogen atoms are attracted to the same pair of electrons in the covalent bond.

8 0
2 years ago
You have a sample of 75.6 g of C3H8. How many moles of C3H8 are in the sample?
dsp73

The number of moles that are contained in the given mass of propane (C_3H_8 is 1.7143 moles.

<u>Given the following data:</u>

  • Mass of propane = 75.6 grams.

<u>Scientific data:</u>

  • The molar mass of propane = 44.1 g/mol.

To calculate the number of moles that are contained in the given mass of propane (C_3H_8):

<h3>How to calculate the moles of a compound.</h3>

In this exercise, you're required to determine the number of moles of propane that are contained in the given sample:

Mathematically, the number of moles contained in a chemical compound is given by this formula:

Number\;of\;moles = \frac{mass}{molar\;mass}

Substituting the given parameters into the formula, we have;

Number\;of\;moles = \frac{75.6}{44.1}

Number of moles = 1.7143 moles.

Read more on number of moles here: brainly.com/question/3173452

3 0
2 years ago
HELP HELP <br><br> why are more common bone fractures among senior citizens than among young people
UkoKoshka [18]
I think this because they are getting much older and weaker so they’re bones tend to break down easily
8 0
3 years ago
Read 2 more answers
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
3 years ago
Other questions:
  • the density of an 18.0 solution of ammonium sulfate is 1.10g/ml. What mass of Ammonium sulfate is required to prepare 275ml of t
    10·1 answer
  • If the ksp of CoCl2 is 1.5x10^-5 calculate the molar solubility
    9·1 answer
  • Where does the year go in a bar graph
    8·1 answer
  • When did the first particles of matter originate
    10·1 answer
  • According to the article which of the following may be affected by a scientist’s bias
    12·1 answer
  • What is the frequency of light with a wave- length of 4.0 ×10−7 m?
    12·1 answer
  • 1. In class, students learned that a cart will move when a force of 50 N
    11·1 answer
  • What is represented in each block of the periodic tables?
    7·1 answer
  • Consider some unknown compound containing only copper and oxygen. In order to determine the empirical formula, a sample of the c
    8·1 answer
  • an object displaces 32 mL of water and a known density of 0.0625 g/mL. What is the mass of the object?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!