answer.
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
bogdanovich [222]
2 years ago
12

What is the percent composition of a solution in which 480 grams of sodium chloride, NaCl, is dissolved in 4 liters of solution.

Chemistry
1 answer:
ZanzabumX [31]2 years ago
8 0
 12% NaCl is the answer I came to... Have a GREAT day!!! :)

You might be interested in
A mixture of KCl and KNO3
Tems11 [23]
Answer is: <span>The percent of KCl in the mixture is closest to </span><span>a) 40%.
</span>
If we use 100 grams of mixture:
ω(K) = 44.20% ÷ 100% = 0.442.
m(K) = 0.442 · 100 g = 44.2 g.
n(K) = 44.2 g ÷ 39.1 g/mol.
n(K) = 1.13 mol.
n(KCl) + n(KNO₃) = n(K)
m(KCl) = x.
m(KNO₃) = y.
Two equtions:
1) x + y = 100 g.
2) m(KCl)/M(KCl) + m(KNO₃)/M(KNO₃) = 1.13 mol.
x/74.55 g/mol + y/101.1 g/mol = 1.13 mol.
From first equation find x = 100 - y and put in second equation:
(100 - y)/74.55 + y/101.1 = 1.13 /×101.1.
135.61 - 1.356y + y = 114.24.
0.356y = 22.37 g.
y = 62.83 g.
x = m(KCl) = 100 g - 62.83 g = 37.17 g.
8 0
2 years ago
Read 2 more answers
Sodium fluoroacetate (NaO₂C₂H₂F) is a common poison used in New Zealand to control invasive species, such as rats. It can be pre
NISA [10]

Answer:

-219

Explanation:

1.5(339) - 1.5(485) = -219

7 0
2 years ago
What is the chemical formula of a compound that is composed of the ions Camc007-1.jpg and Brmc007-2.jpg?
AlekseyPX
Calcium ions have oxidation state 2+ => Ca (2+).

Bromime ions (bromide) have oxidation state 1- => Br (-).

So, to be neutral the compound has to have two Br (-) ions per each Ca(2+) ion.

That is represented in the chemical formula as Ca Br2, where the number 2 to the right of Br is a subscript meaning that there are two atoms of Br per each atom of Ca (the lack of subscript means 1 atom).

Answer: Ca Br2.
6 0
2 years ago
Read 2 more answers
When 60.0 g of CH4 reacts with excess O2, the actual yield of CO2 is 112 g. What is the percent yield? CH4(g) + 2O2(g) → CO2(g)
zepelin [54]

Answer:

67.88% is the percent yield.

Explanation:

CH_4(g) + 2O_2(g)\rightarrow CO_2(g) + 2H_2O(g)

Moles of methane = \frac{60.0 g}{16 g/mol}=3.75 mol

According to reaction,1 mole of methane gives 1 mole of carbon dioxide gas, then 3.75 moles of methane will give :

\frac{1}{1}\times 3.75 mol =3.75 mol of carbon dioxide gas

Mass of 3.75 moles of carbon dioxide gas:

3.75 mol × 44 g/mol = 165 g

Theoretical yield of the carbon dioxide gas = 165 g

Experimental yield of the carbon dioxide gas = 112 g

The percentage yield of the reaction :

Yield\%=\frac{\text{actual yield}}{\text{Theoretical yield}}\times 100

=\frac{112 g}{165 g}\times 100=67.88\%

67.88% is the percent yield.

5 0
2 years ago
A cough syrup contains 5.0% ethyl alcohol, c2h5oh, by mass. if the density of the solution is 0.9928 g/ml, determine the molarit
Reil [10]
<span>You are given a cough syrup that contains 5.0% ethyl alcohol, c2h5oh, by mass and its density of the solution is 0.9928 g/ml. The molarity of the alcohol in the cough syrup is 21.55.</span>
7 0
2 years ago
Other questions:
  • How many hydrogen atoms are in the following molecule of ammonium sulfide? (NH4)2S
    8·2 answers
  • 45.0 g of Ca(NO3)2 are used to create a 1.3 M solution. What is the volume of the solution
    6·1 answer
  • The interior of a refrigerator has a volume of 0.600 m3. the temperature inside the refrigerator in 282 k, and the pressure is 1
    11·1 answer
  • Arsenic produces a blue flame when heated. Calcium produces an orange-red flame. Which of these best explains why this differenc
    11·1 answer
  • H2A and BOH are acid and base and they react according to the following balanced equation: H2A(aq) + 2 BOH(aq) → B2A(aq) + 2 H2O
    6·1 answer
  • Calculate the relative atomic mass of this sample of Germanium, giving your answer to two decimal places. ......................
    14·2 answers
  • Wet steam at 1100 kPa expands at constant enthalpy (as in a throttling process) to 101.33 kPa, where its temperature is 105°C. W
    8·2 answers
  • In addition to the separation techniques used in this lab (magnetism, evaporation, and filtering), there are other commonly used
    6·1 answer
  • Simon has collected three samples from the coral reef where he observes marine life. He must determine whether each one is a pur
    8·1 answer
  • There are many important laws and theories in science. Which of the following is a law of science?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!