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
fgiga [73]
3 years ago
11

A car gets 28.0 miles/gallon of gas on the highway. What is this in km/L?

Chemistry
1 answer:
lys-0071 [83]3 years ago
4 0

Answer:

11.905 km/L

Explanation:

Given that,

A car gets 28.0 miles/gallon of gas on the highway.

We need to find the volume into km/L

We know that,

1 mile = 1.60934 km

Also,

1 gallon = 3.785 litre

So,

28\ \text{miles per gallon}=28\times \dfrac{1.60934\ km}{3.785\ L}\\\\=11.905\ \text{km/L}

Hence, the car get 11.905 km/L of the gas.

You might be interested in
How many Na ions are in 2.7 g of NaCl?<br> Answer in units of ions.
Viefleur [7K]

Answer:

2.778 * 10^{22}

Explanation:

Weight of NaCl is equal to sum of weight of one mole of sodium and one mole of chloride.

Mathematically, it can be represented as -

1 mol (Na) + 1 mol (Cl) = 23.0  + 35.5  = 58.5 g/mol

In 58.5 gram of NaCl, there is one mole of Na or 6.02 * 10^{23} ions

In one gram of NaCl, there will be

\frac{6.02 * 10^{23}}{58.5} sodium ions

In 2.7 grams of  NaCl, the number of sodium ions will be -

\frac{6.02 * 10^{23}}{58.5} * 2.7

2.778 * 10^{22}

3 0
3 years ago
Arrange the following elements in order of increasing (from smallest to largest) atomic size: H, Br, Cl, O. Explain the reasonin
juin [17]

Explanation:

Atomic size is defined as the distance between the nucleus and valence shell of an atom. Valence shell is the outermost shell of an atom.

When we move across a period in a periodic table then there will occur a decrease in atomic size of the atoms. But when we move across a group in a periodic table then there will occur an increase in atomic size of the atom.

Hydrogen is a period 1 element, oxygen is a period 2 element, chlorine is a period 3 element and bromine is a period 4 element.

Therefore, given elements are arranged in order of increasing atomic size as follows.

                             H < O < Cl < Br  

5 0
3 years ago
How many moles of ethanol C2H6O, are in a 10.0g sample​
Brrunno [24]

Answer: 0.217 mol

Explanation:

To find the amount of moles in a 10 g sample, we need the molar mass of ethanol.

Molar Mass: 46.07 g/mol

Now that we have the molar mass, we can find moles.

10.0 g*\frac{1mol}{46.07g}=0.217 mol

We know that there are 0.217 mol in a 10.0 gram sample.

6 0
3 years ago
What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of
NARA [144]
  • Answer:

<em> $ 434.40</em>

  • Explanation:

<em>41 miles ............ 1 gallon</em>

<em>4700 miles .......x gallon</em>

<em>x = 4700×1/41 = 114.63 gallons</em>

<em />

<em>114.63 gallons×$3.79 ≈  $ 434.40</em>

3 0
3 years ago
Read 2 more answers
How many grams of Na2SO4 should be weighed out to prepare 0.5L of a 0.100M solution?​
Nezavi [6.7K]

Answer:

7 gram of Na2SO4 should be required to prepare 0.5L of a 0.100 M solution.

Explanation:

First of all the molecular weight of Na2SO4 is 142.08 gram.Now we all know that if the molecular weight of a compound is dissolved in 1000ml or 1 litee of water then the strength of that solution becomes 1 M.

    According to the given question we have to prepare 0.100 M solution

1000 ml of solution contain 142.08×0.1= 14.208 gram Na2SO4

1    ml of solution contain     14.208÷1000= 0.014 gram

0.5L or 500ml of solution contain 0.014×500= 7gram Na2SO4.

 So it can be stated that 7 gram of Na2SO4 should be required to prepare 0.5L of a 0.100M solution.

     

3 0
2 years ago
Other questions:
  • How many moles of oxygen gs react with 3.8 moles of hydrogen to form water?
    15·1 answer
  • Which accurately represents these building blocks of matter from the smallest to the largest?
    5·1 answer
  • Select the single best answer. Consider the following half-reactions: MnO4−(aq) + 8H+(aq) + 5e−→ Mn2+(aq) + 4H2O(l) NO3−(aq) + 4
    7·1 answer
  • The number of atoms of sulfur in 2.66 grams of sulfur
    10·1 answer
  • HELP ASAP!!!!!!!!!!! * worth 35 points + brainliest *
    11·2 answers
  • Consider the following reaction: CO(g)+2H2(g) &lt;--&gt; CH3OH(g).
    10·1 answer
  • Based on reference table L, H2O is a stronger acid than
    13·1 answer
  • What will occur if two reactant molecules collide but do not have the right alignment?
    8·2 answers
  • When 70. g of Li3N(s) (molar mass 35 g/mol) reacts with excess H2(g), 8.0 g of LiH(s) is produced. The percent yield is closest
    9·1 answer
  • Using the Cell Size and Scale Interactive, tell me which of the following is correct. They are in order of size, left to right,
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!