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4 years ago

How many protons are found in element 14?14121110

Chemistry

2 answers:

Dmitry [639]4 years ago

8 0

There would be 14 protons in the 14th element

GuDViN [60]4 years ago

7 0

If the question is referring to the 14th element on the periodic table (silicone) then it has 14 protons.

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Convert 0.00763 nL to L

Reptile [31]

Answer:

$7.63\cdot10^{-12} L$

Explanation:

Conversion problems could be solved using dimensional analysis for convenient use and understanding. Dimensional analysis is a technique of multiplying the measure we have by a fraction corresponding to some two equal measures in different units.

In order to apply dimensional analysis here, we firstly need to know that a prefix 'n' stands for 'nano', and nano means $10^{-9}$ . In this case, we have nanoliters. Using the prefix, we can find a relationship between nanoliter and liter:

$1 nL = 10^{-9} nL$

We may now apply dimensional analysis. Since we wish to convert into liters, we'll be multiplying the number we have in nL by a fraction that contains this relationship with liters in the numerator and nanoliters in the denominator, so that nL terms cancel out and we would obtain the final answer in liters:

$0.00763 nL\cdot \frac{10^{-9} L}{1 nL}=7.63\cdot10^{-12} L$

6 0

3 years ago

The temperature of the gas

Gemiola [76]

77°F
$77$
I think

4 0

3 years ago

The active ingredient in aspirin is acetylsalicylic acid (MW = 180.2 g/mol). An aspirin tablet was dissolved in

Mashcka [7]

Answer:

1214 mg

Explanation:

Data given

Volume of NaOH solution (V) = 14.85 mL

Molarity of NaOH solution (M) = 0.100 M NaOH.

Amount of acetylsalicylic acid = ?

Molecular weight = 180.2 g/mol

Solution:

It is a acid base titration

As equal amount of NaOH will neutralize equal amount of acetylsalicylic acid.

First find the moles of NaOH

As we know

M = moles of solute / 1 L x volume of solution

Rearrange and modify the above equation

moles of NaOH = M of NaOH x 1 L / volume of NaOH solution

Put values in above equation

moles of NaOH = 0.100 M x 1 L / 14.85 mL

moles of NaOH = 0.0067 moles

Now find to find the weight of acetylsalicylic acid

equal amount of NaOH will neutralize equal amount of acetylsalicylic acid.

moles of acetylsalicylic acid = moles of NaOH.......... (1)

As we know

no. of moles = mass in g / molar mass

So,

The modified form of equation 1 will be

mass in g / molar mass (acetylsalicylic acid) = moles of NaOH

Put values in above equation

mass in g / 180.2 g/mol = 0.0067 moles

Rearrange the above equation

mass of acetylsalicylic acid = 0.0067 moles x 180.2 g/mol

mass of acetylsalicylic acid = 1.214 g

Convert the grams to milligrams

1 g = 1000 milligram

So,

1.214 g = 1214 mg

5 0

4 years ago

Write a formula for the ionic compound that forms from magnesium<br> and oxygen.

Fed [463]

Answer:

MgO

Explanation:

8 0

3 years ago

Which of the following is a pure substance? Question 27 options: salt water soda air carbon dioxide

riadik2000 [5.3K]

Salt is a pure substance

3 0

3 years ago

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How many protons are found in element 14?14121110​

How many protons are found in element 14?14121110