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grin007 [14]
3 years ago
15

If I use the dropper to add 10 mL of drink mix to 50 mL of water, what is the

Chemistry
1 answer:
Yuliya22 [10]3 years ago
4 0

Answer:

16.7%

Explanation:

From the question given above, the following data were obtained:

Volume of drink mix = 10 mL

Volume of water = 50 mL

Percentage of drink mix =?

Next, we shall determine the total volume of the solution. This can be obtained as follow:

Volume of drink mix = 10 mL

Volume of water = 50 mL

Total volume of solution =?

Total volume of solution = (Volume of drink mix) + (Volume of water)

Total volume of solution = 10 + 50

Total volume of solution = 60 mL

Finally, we shall determine the percentage of the drink mix in the solution. This can be obtained as follow:

Volume of drink mix = 10 mL

Total volume of solution = 60 mL

Percentage of drink mix =?

Percentage of drink mix = Vol. of drink mix / total volume × 100

Percentage of drink mix = 10/60 × 100

Percentage of drink mix = 16.7%

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In the following reaction, how many liters of o2 will produce 43.62 liters of co2 at stp? c3h8 5 o2 3 co2 4 h2o
antoniya [11.8K]
The balanced chemical reaction:

C3H8 + 5O2 = 3CO2 + 4H2O

We are given the amount of the carbon dioxide to be produced. This will be the starting point of our calculations.

<span>43.62 L CO2 ( 1 mol CO2 / 22.4 L CO2 ) (5 mol O2 / 3 mol CO2 ) ( 22.4 L O2 / 1 mol O2) = 72.7 L O2</span>



4 0
3 years ago
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What is the empirical formula of a compound containing carbon, hydrogen, and oxygen in the ratio 14:42:84?
Alexxandr [17]
<h3>Answer:</h3>

D. CH₃O₆

<h3>Explanation:</h3>
  • We are given the ratio of carbon, hydrogen and oxygen in a compound as 14: 42 : 84

We are supposed to determine the empirical formula of the compound;

  • We need to know what is an empirical formula;
  • An empirical formula of a compound is a formula that shows the simplest whole number ratio of elements in a compound.

In this case;

The ratio of C : H : O is 14 : 42 : 84

  • Note, this is not the simplest ratio.

But we can simplify further to get the simplest whole number ratio;

  • Therefore, 14 : 42 : 84  is equal to 1 : 3 : 6
  • Thus, the simplest whole number ratio of C : H : O in the compound is 1 : 3 : 6
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3 0
3 years ago
Balance the following reactions and identify the species that have been oxidized and the species that have been reduced.
marin [14]

Answer:

Balance the following reactions and identify the species that have been oxidized and the species that have been reduced.

CL2 +I- -------------> I2 +CL-

WO2 + H2 ---------------> W + H2O

CA + H2O -----------------> H2 + CA(OH)2

AL+ O2 --------------------> AL2O3

Explanation:

Oxidation is the process where an atom loses electrons.

During oxidation, the oxidation number of the atom increases.

Reduction is the process where an atom gains electrons.

During reduction, the oxidation number of the atom decreases.

The balanced chemical equations for the given reactions are shown below:

Cl_2 +2I^- -> I_2 + 2Cl^-

Iodine undergoes oxidation and chlorine undergoes reduction.

WO_2 +2 H_2 -> W+ 2 H_2O\\

In this reaction, W (tungsten) undergoes reduction and hydrogen undergoes oxidation.

Ca+2 H_2O ->H_2+Ca(OH)_2\\

Ca undergoes oxidation and hydrogen undergoes reduction.

4Al+3O_2->2Al_2O_3\\

Al undergoes oxidation and oxygen undergoes reduction.

4 0
2 years ago
Please put the molecular compound names for these compound formulas. Answer as many as you want. Thanks
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Answer:

Explanation:

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SO₃

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NO

Nitric oxide

NO₂

nitrogen dioxide

As₂O₅

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PCl₃

Phosphorus trichloride

CCl₄

Carbon tetrachloride

H₂O

Water

SeF₆

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N₂O₄

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SO₃

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Velocity Equation Practice:
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