Answer:
67.7 °C
Explanation:
Since this solution has 2 substances, but not in the same proportion, you need to consider the fraction molar of each one and the boling point, it will be expected a higher temperature than the lower boiling point and a lower boiling point of the highest boiling point.
46 °C x 0.69 = 31.74 °C
116°C x 0.31 = 35.96 °C
You add both: 31.74 °C + 35.96°C = 67.7 °C
Answer:
2.14x10¹⁹ atoms of Cu were deposited
Explanation:
The increased in mass of the glass slide is due the deposition of copper.
That means the mass of copper deposited is 2.26mg = <em>2.26x10⁻³g Cu</em>
To know the copper atoms we need to convert this mass to moles of Cu using molar mass of copper (63.546g/mol), and these moles are converted to atoms using Avogadro's number (6.022x10²³ atoms = 1 mole)
<em>Moles Cu:</em>
2.26x10⁻³g Cu * (1 mol / 63.546g) = 3.556x10⁻⁵ moles Cu
<em>Atoms Cu:</em>
3.556x10⁻⁵ moles Cu * (6.022x10²³ atoms / 1 mole) =
2.14x10¹⁹ atoms of Cu were deposited
The statement “The mechanical advantage of a compound
machine is equal to the one simple machine that has the greatest mechanical
advantage” is TRUE. I am hoping that this answer has satisfied your
query and it will be able to help you in your endeavor, and if you would like,
feel free to ask another question.
Answer: Ur answer would be C: Table sugar
<u>Answer:</u>
<em>Substances known as </em><u>electrolytes</u><em> are found in blood which includes sodium and potassium.</em>
<u>Explanation:</u>
<em>Electrolytes are electrically charged particles</em> and they help in moving nutrients into the cell and removing waste particles out of the cell. Other <em>functions of electrolytes</em> include maintaining the salt level as well as <em>pH level of the body. </em>
The electrolyte potassium is present in <em>small quantities in the fluid part of blood, namely plasma.
</em>
Regulating body muscle contraction is the main function of potassium. The fluid region outside cells contains a <em>major portion of sodium which maintains the water balance of the body.
</em>