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guajiro [1.7K]
3 years ago
15

This is the last one thank you to anyone who helps ​

Chemistry
2 answers:
Mice21 [21]3 years ago
5 0

Chromium-58   Carbon-16    Nitrogen-15    Sulfer-25  Sodium-20 Selenium-80

protons:24               6                      7                16               11                  34

neutrons:34             10                     8                 7               1                    46

electrons:24             6                      7                 16             11                   34

Explanation:

Snowcat [4.5K]3 years ago
4 0
I do not get what this is
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If a tablet of acetaminophen, C8H9NO2, weighs 324 mg, how many moles are there in the tablet? If a tablet of acetaminophen, C8H9
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Answer:

2.14*10^{-3} mol

Explanation:

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The trick is to remember to convert milligrams to grams because molar mass is normally presented in grams per mole

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a_sh-v [17]

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3 years ago
What is the molarity of 122.5 g of AlCl3 in 1.0 L of solution? (MM = 133 g/mol)
yawa3891 [41]
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liters of solution = 400 ml x 1 liter/1000 ml = 0.400 liters
Molarity = 0.955 moles/0.400 liters = 2.39 M
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