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Mumz [18]
4 years ago
7

Two students are given different samples of a substance and are instructed to determine the properties of the substance. Which s

tatement describes a property that will be the same for both students?
-color because it is an extensive property
-mass because it is an extensive property
-boiling point because it is an intensive property
-volume because it is an intensive property
Chemistry
2 answers:
olga_2 [115]4 years ago
8 0
Mass because it is an extensive property
Art [367]4 years ago
5 0

Answer : The correct option, mass because it is an extensive property.

Explanation :

Extensive property : It is a type of property that depends on the amount of the substance. For example : mass and volume.

Intensive property : It is a type of property that don not depends on the amount of the substance. For example : density, boiling point, pressure and color.

Hence, from the given statements the correct statement is, the mass because it is an extensive property.

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What is the percent yield for carbon dioxide if 10.0 grams of carbon
ivolga24 [154]

The percent yield : 81.5%

<h3>Further explanation</h3>

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients

Reaction

2CO+O₂⇒2CO₂

mol CO(MW=28,01 g/mol)

\tt \dfrac{10}{28.01}=0.357

mass CO₂ (theoretical)(MW=44,01 g/mol)

\tt 0.357\times 44.01=15.712~g

the percent yield :

\tt \dfrac{12.81}{15.712}\times 100\%=81.5\%

3 0
3 years ago
How many centimeters are in 1.00 x 10^2 feet?
kozerog [31]

Answer:3048 centimeters

Explanation:

5 0
3 years ago
Caustic soda is 19.1 M NaOH and is diluted for household use. What is the household concentration if 10 mL of the concentrated s
olga nikolaevna [1]
Hello!

To calculate the household concentration of NaOH we need to use the dilution formula, clearing for M2, as you can see in the equation below:

M1*V1=M2*V2 \\ \\ V2= \frac{M1*V1}{V2}

Now, we input the values from the data we have onto this equation. M1=19,1 M; V1=10 mL; V2=400 mL, and solve the equation to get the result:

V2= \frac{M1*V1}{V2}= \frac{19,1M*10mL}{400 mL}=0,48M

So, the household concentration of NaOH will be 0,48 M

Have a nice day!
4 0
4 years ago
For elements 1-20, we can use the periodic table to predict.
mezya [45]

Answer:

B

Explanation:

because a periodic table shows the arrangement of element according to their atomic number and their valence neither

isotopes nor colour

4 0
4 years ago
Read 2 more answers
Which of the following molecules has a tetrahedral shape?
IgorC [24]

Answer:

SiH4

Explanation:

4 hydrogens serve a the base and the Si is on top which forms a tetrahedral shape.

7 0
3 years ago
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