B.)C=C is the right answer.
because h<span>aving more double bonds than single bonds decreases the melting point and, hence, the fluidity of the substance this is why butter is a solid but canola oil is a liquid at room temperature.</span>
Answer:
The volume increases by 10.3 mL.
Explanation:
This is not an easy question to answer, because water expands at different rates depending on the temperature.
However, we can use the known densities of water at these temperatures.
(a) Calculate the <em>mass of 1 L of water at 20 °C</em>.
The density of water at 20 °C is 0.998 20 g/mL.
(b) Calculate <em>the volume at 50 °C</em>.
The density of water at 50 °C is 0.988 03 g/mL.
∴ The volume increases by 10.3 mL.
Dhangaman the smiths lama
The question is incomplete, here is the complete question:
A murexide soution has a concentration of and an absorbance of 1.850 and the path length is 1 cm. What is the molar absorptivity of the solution?
<u>Answer:</u> The molar absorptivity coefficient is
<u>Explanation:</u>
To calculate the molar absorptivity coefficient, we use the equation given by Beer-Lambert law, which is:
where,
A = absorbance = 1.850
= molar absorptivity coefficient = ?
C = concentration of the solution =
l = path length = 1 cm
Putting values in above equation, we get:
Hence, the molar absorptivity coefficient is
<h3>Further explanation
</h3>
In general, some people equate mass and weight.
Mass is one of the principal quantities, which is related to the matter , whereas weight is a force that leads to the center of the earth (Earth's gravitational force)
Steps that can be taken to find the mass :
- 1. Weigh graduated cylinder (empty)
- 2. Pour the alcohol in the beaker into the graduated cylinder to the level of 40 ml
- 3. Weigh again graduated cylinder + poured alcohol
- 4. mass of alcohol 40 ml = mass in 3rd step - mass in the first step