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bonufazy [111]
4 years ago
5

Noble gas notation for platinum

Chemistry
1 answer:
SOVA2 [1]4 years ago
4 0

Pt

Hope this helps!!!

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A 20.0-ml sample of glucose Iv solution has a mass of 20.6g.what is the density of the glucose​
xxTIMURxx [149]

Taking into account the definition of density, the density of the glucose is 1.03 \frac{g}{mL}.

<h3>What is density</h3>

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density=\frac{mass}{volume}

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

<h3>Density of the glucose</h3>

In this case, you know that:

  • Density= ?
  • Mass= 20.6 g
  • Volume= 20 mL

Replacing in the definition of density:

density=\frac{20.6 g}{20 mL}

Solving:

<u><em>density= 1.03 </em></u>\frac{g}{mL}

In summary, the density of the glucose is 1.03 \frac{g}{mL}.

Learn more about density:

brainly.com/question/952755

brainly.com/question/1462554

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4 0
2 years ago
For a particular isomer of C8H18, the following reaction produces 5093.7 KJ of heat per mole of C8H18(g) consumed, under stander
lapo4ka [179]
Delta Hf = dHf 
<span>dHf rxn = (n*dHf products) - (n*dHf reactants). </span>
<span>Substitute 5113.3 kJ for dHf rxn and solve for the only unknown in the equation which is dHf C8H18. 
</span>-5133.3-[(8x-393.5)+9(-241.8)] = 190.9 

<span>Since it is an enthalpy of formation, the value has to be negative, </span>
<span>thus the correct answer is -190.9</span>
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Which of these phrases would go in the overlap? Select two options.
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I think it’s found in the nucleus and has a mass of one amu
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:answer question number 5
In-s [12.5K]

Answer:

it is simple true and thanks for point

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Which elements are represented by the symbols S and Na?
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Sulfur and sodium are those two elements
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