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Mrac [35]
3 years ago
14

Find the volumetric (mL/s) and mass (g/s) flow rates in an artery whose diameter is 0.3 mm and blood flow rate is 25 mm/s.

Chemistry
1 answer:
Setler [38]3 years ago
5 0
I don’t know kid I don’t know ‍♂️
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Cyclohexane, a commonly used organic solvent, is 85.6% c and 14.4% h by mass with a molar mass of 84.2 g/mol. what is its molecu
puteri [66]

The molecular  formula of   organic solvent  is    <em>C6H12</em>


<h2>calculation</h2><h3>find the empirical formula first as in step 1 and 2</h3>

Step 1: f<em>ind the moles of C and H</em>

  • moles =  % composition/molar mass
  •       from periodic table molar mass of C= 12 g/mol while that of H= 1 g/mol
  • moles is  C is therefore = 85.6/12=  7. 13 moles
  •  moles of H=  14.4/1 - 14.4 moles

  Step 2:  <em>calculate the mole  fraction  by dividing each mole by smallest number of mole(7.13)</em>

  • that is C= 7.13/7.13 = 1

         H=  14.4/7.13 =2

the empirical formula is therefore = CH2

<h2>Then calculate the molecular formula from empirical formula</h2>

step 3: divide the  grams molar mass  by empirical formula mass

               empirical formula mass =  12+(1 x2) = 14 g/mol

    = 84.2/ 14 = 6

step 4: multiply  each of the subscript  within the empirical  formula with the value gotten in step 3

  • that is  [CH2]6 = C6H12  therefore the molecular formula = <u>C6H12</u>
8 0
3 years ago
At what pH do you think acids become too dangerous to touch? Basis? Explain your answers.
Andrews [41]

Answer:

lower than about,3.

it can corrode your akin

5 0
3 years ago
Which of the following objects would have the most inertia?
ankoles [38]
I believe it is A or  D
3 0
3 years ago
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How many moles of sulfuric acid (H2SO4) are needed to react completely with 6.8 moles of lithium hydroxide (LiOH)? (4 points) 2L
Keith_Richards [23]

Answer:

3.4 mol H2SO4

Explanation:

Took the test

3 0
3 years ago
A geologist finds ripples preserved in ancient sedimentary rock that look just like ripples made by water in mud. He concludes t
MArishka [77]

Answer:

D.  because water and mud behaved in a similar way in the past as they do today

Explanation:

One of the fundamental theories in the field of earth science is the theory of uniformitarianism.

Uniformitarianism was proposed by James Hutton in the 18th century in Scotland. The theory states that "geologic processes occurring today have occurred in times past and that the present is the key to past".

The simple meaning of the theory is that, the processes on earth today such as weathering, erosion, e.t.c have also occurred in times past. Those processes still occur today and an understanding of such events today will help us have a better insight into the past.

Therefore, ripple marks just as they form today from action of mud and water would be formed in a similar way in the past.

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