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Romashka [77]
3 years ago
8

A patient being treated for thyroid cancer is to receive a dose of iodine-131. The typical dose is 4.5 uCi/kg of body weight.

Chemistry
1 answer:
Ilia_Sergeevich [38]3 years ago
4 0

Answer:

You would need 328.5 uCi.

Explanation:

Since you need 4.5 uCi per kilogram of body weight then you would multiply 4.5 with their body weight in kilograms to get the answer.

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How many protons, neutrons, and electrons are contained in uranium-238?
monitta
It has 92 protons, 92 electrons, and 238 — 92 : 146 neutrons.
8 0
3 years ago
How many joules of heat must be absorbed by 500g h2O @ 50CELCIUS to convert to steam @ 120 celcius?
nadya68 [22]

Answer:

Q = 1267720 J

Explanation:

  • Qt = QH2O + ΔHv

∴ QH2O = mCpΔT

∴ m H2O = 500 g

∴ Cp H2O = 4.186 J/g°C = 4.183 E-3 KJ/g°C

∴ ΔT = 120 - 50 = 70°C

⇒ QH2O = (500 g)(4.183 E-3 KJ/g°C)(70°C) = 146.51 KJ

∴ ΔHv H2O = 40.7 KJ/mol

moles H2O:

∴ mm H2O = 18.015 g/mol

⇒ moles H2O = (500 g)(mol/18.015 g) = 27.548 mol H2O

⇒ ΔHv H2O = (40.7 KJ/mol)(27.548 mol) = 1121.21 KJ

⇒ Qt = 146.51 KJ + 1121.21 KJ = 1267.72 KJ = 1267720 J

5 0
3 years ago
HELP 10pts!
masha68 [24]

IM IN THAT CLASS TOO

Im abt to do it and ill send u all the answers when im

done, add me on sxxap or instaxxxgram so i can send it to u

my userneamen both: Bellaberrygood

5 0
2 years ago
What is the mass in grams of 2.00 10 5 atoms of naturally occurring neon
lesantik [10]

Answer:

2.00X10^5 x 20gNe/6.02x10^23=6.46x10^-18 but books answer is 797.

Explanation:

3 0
2 years ago
What cell structure reminds me/you of hand sanitizer A. golgi apparatus B. endoplasmic reticulum C. cytoplasm
Zanzabum

Answer:

I think that it might be cytoplasm

Explanation:

I got this from google

Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins. 

4 0
2 years ago
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