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kykrilka [37]
3 years ago
12

A piece of iron 12mm by 15mm has a mass of 3.6 grams. what is the thickness of the piece of iron, in mm, given that the density

of iron is 7.8 g/cc. show you work below; include units; record your answer in scientific notation to 1 digit past the decimal
Chemistry
1 answer:
miss Akunina [59]3 years ago
4 0
<span>Thickness = 2.6 x 10^0 mm First, determine the volume of iron you would have if the mass was 3.6 grams. 3.6 g / 7.8 g/cc = 0.4615 cc Now divide that volume by the 2 dimensions you have to determine the size of the 3rd dimension needed 0.4615 (cm)^3 / (1.2 cm * 1.5 cm) = 0.4615 (cm)^3/(1.8 cm^2) = 0.256388889 cm = 2.56388889 mm = 2.6x10^0 mm</span>
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soldier1979 [14.2K]

Answer:

Explanation:the formula for osmotic pressure is given in the first line, all the terms are explained before solution, from the question,

Molar mass=Mm=386.6

Mass= m= 14.6

Volume= 263/1000 = 0.263dm^3

Temperature=T= 298K.

Gas constant .R= 0.082

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Making π subject of formula

π= nRT/V

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7 0
3 years ago
Convertible bonds are usually secured by a first or second mortgage.pay interest only in the event earnings are sufficient to co
Mademuasel [1]

Answer:

may be exchanged for equity securities.

Explanation:

Convertible bonds -

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It refers to as the fixed - income debt security which can give the interest payments and can be converted to some predetermined number of equity shares and common stock , is referred to as convertible bonds .

The process of conversion can be done at any time period of the bond .

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The correct answer is may be exchanged for equity securities.

7 0
3 years ago
What is the energy required to remove the electron from a hydrogen atom in the n = 11 state?
zaharov [31]

Based on the data given, the energy required to remove an electron from a hydrogen atom in the n = 11 state is -0.112 eV

<h3>What is ionization energy?</h3>

Ionization energy is the energy requiredto remove an electron from a neutral atom or a cation in its gaseous state.

To calculate the energy required to remove the electron from a hydrogen atom in the n = 11 state, the formula below is used:

  • E_n = \frac{E_0 × Z^{2}}{n^{2}}

where

E_0  \: is  \: ground  \: state  \: energy  \: of \:  hydrogen \:  atom \:  = -13.6 eV \\

  • Z = 1
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substituting the values:

E_n = \frac{ - 13.6 × 1^{2}}{11^{2}} \:  =  - 0.112 \: eV

Therefore, the energy required to remove an electron from a hydrogen atom in the n = 11 state is -0.112 eV

Learn more about ionization energy at: brainly.com/question/1445179

5 0
2 years ago
What is the best name for the following compound? CCl4
Nitella [24]

Answer:

The answer is b. Carbon Tetrachloride

Explanation:

Let's discard the other options:

a. It couldn't be carbon chloride because there are four (4) chloride ions in the molecular formula. The molecular formula for the carbon chloride must be CCI. So, this answer is wrong

c. It could be monocarbon tetrachloride because there are 4 chloride ions and 1 carbon ion, but it's not necessary to use the prefix "mono" because there is just one carbon ion in the formula. In that way, when we mention carbon in the name, there is implicit that there is just one carbon atom in the formula. So, this answer could be ok, but isn't the best.

d. It couldn't be calcium chloride because there isn't any calcium ion or atom in the formula. The molecular formula for the calcium chloride must be CaCI. So, this answer is wrong

6 0
4 years ago
How many moles are in a sample of Sodium that contains 1.806 x 1024 atoms?
Ad libitum [116K]

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= 2.99 or 3 moles Na

3 0
4 years ago
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