Question 14(Multiple Choice Worth 5 points)

Chemistry

1 answer:

castortr0y [4]4 years ago

8 0

The space it occupies

Explanation:

The space an object occupies must be known in order to calculates its density. Density is defined as the mass per given volume of a body.

Density = $\frac{mass}{volume}$

The volume of a body is the amount of space it occupies. The mass is the amount of matter in a substance.

The more volume a body occupies, the lesser its density.

The unit of density is always expressed as kg/m³ or g/cm³

Learn more:

Density brainly.com/question/3764212

#learnwithBrainly

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A binding protein binds to a ligand l with a kd of 400 nm what is the concentration of ligand when y is 0.25

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Answer:

The answer is 7600 nm.

Explanation:

As, Y = 0.25 = [ L ÷ (400 + (L)]

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Using the balanced equation N2+O2=2NO, how many grams of NO can be produced when 25.0 grams of N react?

Oxana [17]

Answer:

$53.55gNO$

Explanation:

Hello there!

In this case, according to the given chemical reaction, it is possible for us to calculate the produced grams of nitrogen monoxide by starting with 25.0 g of nitrogen via their 1:2 mole ratio and the molar masses of 30.1 g/mol and 28.02 g/mol, respectively and by some stoichiometry:

$=25.0gN_2*\frac{1molN_2}{28.02gN_2}*\frac{2molNO}{1molN_2}*\frac{30.01 gNO}{1molNO}\\\\=53.55gNO$