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mars1129 [50]
3 years ago
10

0.1005 liters is the same as: A. 0.0001005 cm3 B.0.1005 cm3 C.100.5 cm3 D.0.01005 cm3 and A. 0.01005 mL B. 0.1005 mL C. 0.000100

5 mL D. 100.5 mL
Chemistry
2 answers:
Andreyy893 years ago
4 0

I think it would be C.100.5cm or D.100.5ml hope that helps


Alecsey [184]3 years ago
4 0

The correct answers are: C. 100.5cm³ and D. 100.5 mL


FIRST.

Cubic centimeter (cm³) is the volume made by a cube that is 1 centimeter on each side.

<em>C. 100.5cm³</em>

1L=1000cm^3 \\ \\ So: \\ \\ 0.1005L=1000\times 0.1005cm^3=\boxed{100.5cm^3}


SECOND.

<em>D. 100.5 mL</em>

1 cubic centimeter is equal to 1mL, which is one-thousandth of a liter. So:


1L=1000mL \\ \\ So: \\ \\ 0.1005L=1000\times 0.1005mL=\boxed{100.5mL}

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Answer:

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How do you convert ounces to grams
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4 0
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A 0.200 g sample of unknown metal x is dropped into hydrochloride acid and realeases 80.3 mL of hydrogen gas at STP using ideal
s344n2d4d5 [400]

Answer:

The number of mole of the unknown metal is 3.58×10¯³ mole

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This is illustrated below:

Recall:

1 mole of any occupy 22.4L or 22400 mL at stp.

1 mole of H2 occupies 22400 mL at stp.

Therefore, Xmol of H2 will occupy 80.3 mL at stp i.e

Xmol of H2 = 80.3/22400

Xmol of H2 = 3.58×10¯³ mole

Therefore, 3.58×10¯³ mole of Hydrogen gas was released.

Now, we can determine the mole of the unknown metal as follow:

The balanced equation for the reaction is given below:

X + 2HCl —> XCl2 + H2

From the balanced equation above,

1 mole of the unknown metal reacted to produce 1 mole of H2.

Therefore, 3.58×10¯³ mole of the unknown metal will also react to produce 3.58×10¯³ mole of H2.

Therefore, the number of mole of the unknown compound is 3.58×10¯³ mole.

5 0
3 years ago
When an atom undergoes beta decay, wich of the following is true?
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3 0
3 years ago
A certain element exists as two different isotopes. 65.0% of its atoms have a mass of 24 amu and 35.0% of its atoms have a mass
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Answer:

24.7 amu

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An isotope is when an element can have different number of neutrons but they have same number of protons.

In order to calculate the average atomic mass with the given information do the following operations:

First change de percentages to fractional numbers, divide by 100.

I like to make a table, to organize all data and I believe is easier to understand.

65/100 = 0.65

35/100 = 0.35

% fraction

65.0 0.65

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total100.0 1

Now multiply each mass with their corresponding fraction

24 (0.65) = 15.6

26 (0.35) = 9.1

%    fraction uma uma

65.0 0.65 24 15.6

35.0 0.35 26 9.1

total100.0    1          24.7

Finally you add the resulting mass and the units will be in uma.

15.6+9.1 = 24.7

Therefore the average atomic mass of this element will be 24.7 uma.

Check the table in the document attached

Download xlsx
4 0
3 years ago
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