All categories

3 years ago

Why do scientists use a mortar and pestle?

Chemistry

1 answer:

postnew [5]3 years ago

6 0

Due to increase the surface area of a solute.

Hope this helps have a very good dayyyyyy.........

You might be interested in

Please Help !! Brainliest !!

Rufina [12.5K]

Answer:

Data supports significantly because we can use the testing(depending sample) before and after we use the same object to test the hypothesis.

5 0

3 years ago

Fred can create 20 animal balloons every 15 minutes. solve ratio table

DerKrebs [107]

The number of animal balloons created in 15 minutes = 20

The number of animal balloons created in 1 minute = $\frac{20}{15}$

So, the number of animal balloons created in 6 minutes = $\frac{20}{15}\times 6 = 8$

And, the number of animal balloons created in 45 minutes = $\frac{20}{15}\times 45 = 60$

So, the solved ratio table will be:

$15.20$

$6.8$

$45.60$

3 0

3 years ago

Material property of glass

iren2701 [21]

The main characteristics of glass are transparency, heat resistance, pressure, and breakage resistance, and chemical resistance.

5 0

3 years ago

15.0 moles of gas are in a 8.00 L tank at 22.3 ∘C∘C . Calculate the difference in pressure between methane and an ideal gas unde

leva [86]

Answer:

$\Delta P=4.10atm$

Explanation:

Hello!

In this case, since the ideal gas equation is used under the assumption of no interaction between molecules and perfectly sphere-shaped molecules but the van der Waals equation actually includes those effects, we can compute each pressure as shown below, considering the temperature in kelvins (22.3+273.15=295.45K):

$P^{ideal}=\frac{nRT}{V}=\frac{15.0mol*0.08206\frac{atm*L}{mol*K}*295.45K}{8.00L}=45.5atm$

Next, since the VdW equation requires the molar volume, we proceed as shown below:

$v=\frac{8.00L}{15.0mol}=0.533\frac{L}{mol}$

Now, we use its definition:

$P^{VdW}=\frac{RT}{v-b} -\frac{a}{v^2}$

Thus, by plugging in we obtain:

$P^{VdW}=\frac{0.08206\frac{atm*L}{mol*K}*295.45K}{0.533mol/L-0.0430L/mol} -\frac{2.300L^2*atm/mol^2}{(0.533L/mol)^2}\\\\P^{VdW}=49.44atm-8.09atm\\\\P^{VdW}=41.4atm$

Thus, the pressure difference is:

$\Delta P=45.5atm-41.4atm\\\\\Delta P=4.10atm$

Best regards!

6 0

3 years ago

Devices that allow you to do work in an easier way.

IrinaVladis [17]

Answer:

The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge, although the latter three are actually just extensions or combinations of the first three.

6 0

3 years ago

Read 2 more answers