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Bingel [31]
3 years ago
11

What is the molarity of 4 qof NaCl (MM=58.45) in 3,800 mL of solution?

Chemistry
1 answer:
tiny-mole [99]3 years ago
8 0

Answer:

.018 M

Explanation:

grams/MM=ans./volume(L) = M

4/58.45=ans./3.8=.018 M

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<h3>The answer is option A.</h3>

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4 years ago
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3 years ago
Differentiate the claims made by science from those based on bias.
Readme [11.4K]

Answer:

Scientists seek to eliminate all forms of bias from their research. However, all scientists also make assumptions of a non-empirical nature about topics such as causality, determinism and reductionism when conducting research. Here, we argue that since these 'philosophical biases' cannot be avoided, they need to be debated critically by scientists and philosophers of science.

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6 0
3 years ago
How many neutrons does element X have if its atomic number is 30 and its mass number is 70?
Yanka [14]
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We can solve this by finding out the number of protons, and neutrons. Atomic number of an element means the number of protons in that element. So, the atom has 30 protons if the atomic number is 30.

On the other hand, mass number is the total number of protons and neutrons, but not electrons, because they're too light comparing to the other 2. Therefore, we can simply solve the number of neutrons in the atom by subtracting the number of protons from the mass number. 70 - 30 = 40.

Therfore, the number of neutrons is 40.
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Hope this helps!
8 0
3 years ago
Read 2 more answers
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