No it do not but it uses gravity and falls fast So. The surface do not affect how fast objects fall. Hope this helps:)
Answer:
1.5 Molar solution in KCl
Explanation:
Definition of molarity => moles of solute / Volume of solution in Liters
Given 3.00 moles of solute dissolved in 2Liters of solution
Molarity of [KCl] = 3.00 moles KCl / 2Liters solution = 1.5 Molar solution in KCl
<h2>Hello!</h2>
The answer is: -97.23° C
<h2>Why?</h2>
Applying the Charles and Gay-Lussac's Law we have that:

Where:
<em>k </em>is the proportionality constant
<em>v</em> is the volume of the gas
<em>t</em> is the temperature of the gas
We also have the following relation:

Since we need to know the new temperature (T2) we can find it using the last equation, so:

We are asked to find the temperature in Celsius degrees, we must convert the result:

Therefore, the temperature is -97.23° C
Have a nice day!
Answer:
188.5g of dextrose are needed
Explanation:
In Weight per volume percentage - %(w/v) -, the concentration is defined as the mass of solute in grams -In this case, dextrose-, in 100mL of solution.
As you want to prepare 725mL of a 26.0% (w/v) solution. you need:
725mL * (26g / 100mL) = 188.5g of solute =
<h3>188.5g of dextrose are needed</h3>
Gases use Cubic Feet (cu.ft).
28,317 cc (cm³ or mL).
For liquids we have the US Gallon (gal).
1.0 US gal. = 3,785 cc (cm³ or mL).