Answer:
Molarity of potassium chloride is 0.100M
Explanation:
Molarity is defined as moles of solute per liter of solvent.
Moles of solute (Potassium chloride; MW: 74.55g/mol):
0.182g × (1mol / 74.55g) = <em>2.44x10⁻³mol KCl</em>
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Liters of water using density are:
26.0g Water × ( 1mL / 1.071g) × (1L / 1000mL) = <em>0.0243L</em>
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Thus, molarity of KCl in the sample is:
<em>2.44x10⁻³mol KCl / 0.0243L = </em><em>0.100M</em>
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I hope it helps!
Answer:
The correct answer is D) 44 atm
Explanation:
We apply Dalton's law, where for a gas mixture the total pressure is the sum of the partial pressures of each gas that makes up that mixture. You can add the amount of moles and then calculate the pressure, using the ideal gas formula. We convert the temperature in Celsiud into Kelvin : 0°C= 273K---->
27°C=27 + 273= 300K
PV= (nH+ n0+ nHe)x RT
P=((nH+ n0+ nHe)x RT)/V=
P=((3 mol + 6 mol +9 mol)x 0,082 l atm/ Kmol x300K)/10 L
<em>P=44, 28 atm</em>
A Biochemist is a type of chemist understands the structure of living systems and, in turn, their functions and ways to control them.
<h3>What is the chemistry of living systems called?</h3>
The chemistry of living system is known as Biochemistry.
Biochemistry is a study of the chemical changes that occur in living organisms.
Scientists that study biochemistry are called Biochemists.
Biochemistry studies the structure and function of biological molecules such as carbohydrates, lipids, proteins, e.t.c., as well the chemical reaction they undergo.
Biochemistry also studies the energy changes that occur in living systems.
In conclusion, the chemistry of living systems is called Biochemistry.
Learn more about biochemistry at: brainly.com/question/12273783
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Answer:
massive flooding occurs in may at this location
Explanation:
i did the quiz idk if its right though :/
Answer:
4 lead = Pb
2 nitrogen = N
6 oxygen = O
Explanation:
Know the rules of multiplying wth perentheses.
- Hope that helped! Please let me know if you need further explanation.
