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anyanavicka [17]
3 years ago
6

A 298 lb person must receive Heparin, determine the number of units given every hour (Heparin 8.0 units/kg per hour). Enter your

answer with 1 decimal place and no units (the understood unit in this problem is units).
Chemistry
1 answer:
yarga [219]3 years ago
4 0

Answer:

1,081.1 units of heparin should be given to 298 lb person.

Explanation:

We are given:

Weight of the person = 298 lb = 135.143 kg

Conversion factor used:

1 lb = 0.4535 kg

Number of unit of heparin to be given in an hour = 8.0 units/kg

Number of units given to the patient weighing 135.143 kg :

8.0 units/kg\times 135.143 kg=1,081.144 units\approx 1,081.1 units

1,081.1 units of heparin should be given to 298 lb person.

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The correct option is (c)

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The sulfuric acid can be constituted into different concentrations using distilled water as a diluent.

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Which of these bonds should be classified as ionic?
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Dumbledore decides to gives a surprise demonstration. He starts with a hydrate of Na2CO3 which has a mass of 4.31 g before heati
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Na₂CO₃.2H₂O

Explanation:

For the hydrated compound, let us denote is by Na₂CO₃.xH₂O

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Given values:

Starting mass of hydrate i.e Na₂CO₃.xH₂O = 4.31g

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To determine the integer x, we find the number of moles of the anhydrous Na₂CO₃ and that of the water of crystallisation:

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Number of moles of Na₂CO₃ = \frac{3.22}{106} = 0.03mole

Number of moles of H₂O =  \frac{1.09}{18} = 0.06mole

From the obtained number of moles:

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                           0.03                                    0.06

Simplest

Ratio                  0.03/0.03                         0.03/0.06

                                 1                                      2

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What will happen if you add more solute to a saturated solution?
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No more solute will dissolve at that temperature, the temperature would have to be increased in order for more solute to dissolve.
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