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Sonbull [250]
3 years ago
12

The pen on seismograph swings freely.

Chemistry
1 answer:
Sever21 [200]3 years ago
7 0
This statment is false, the pen on a seismograph does not swing freely.
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What term do you use to describe a solutio that has a lower concentration compared to another solution?
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If we are talking about a lower concentration of solutes then the term would be Hypotonic solution.
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3 years ago
Does anyone know how to do it
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A client who weighs 70 kg is receiving a solution of 0.9% sodium chloride (normal saline) 500 ml with dopamine 800 mg at 5 ml/ho
nordsb [41]

The mcg/kg/minute the client is receiving is 1.904 mcg/kg/min whose weight is 70 kg.

<h3>What does mcg kg mean?</h3>

1 milligram (mg) = 1000 micrograms (mcg) or 0.001 grams (g) 1 g = 1000 mg 1 kilogram (kg) = 1000 g 1 kg = 2.2 pound (lb) 1 liter (L) = 1000 milliliters (mL)

The number of mcg/kg/minute = flow rate × concentration ÷ mass of client

Flow rate = 12 ml/hour = 12 ml/hour × 1 hr/60 min = 0.2 ml/min

Concentration = mass of dopamine/volume

where

mass of dopamine = 800 mg and

volume =  500 ml

Concentration =800 mg/500 ml

= 1.6 mg/ml

= 1.6 mg/ml × 1000 mcg/mg

= 1600 mcg/ml

mass of client = 70 kg

Calculating mcg/kg/minute

So, substituting the variables into the equation, we have

mcg/kg/minute = flow rate × concentration ÷ mass of client

mcg/kg/minute = 0.08 ml/min × 1600 mcg/ml ÷ 70 kg

mcg/kg/minute = 320 mcg/min ÷ 70 kg

mcg/kg/minute = 1.904 mcg/kg/min

Thus, the mcg/kg/minute the client is receiving is 1.904 mcg/kg/min

Learn more about mcg/kg/minute here:

brainly.com/question/4253005

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2 years ago
An element A has an atomic number of 11 and another element B has an atomic number 17 (A
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How many grams of salt(NaCl) are in 4.8 moles?
Dafna11 [192]
Molar mass of salt = 58.44 grams/mole

m = 58.44 \frac{g}{mol}  \times 4.8mol = 280.512g
5 0
3 years ago
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