How would you prepare a 35 ml solution of 95% (volume/volume solution of ethanol?

Chemistry

1 answer:

Artyom0805 [142]2 years ago

7 0

Explanation:

Solutions. 1. If 47 g of KCl dissolved in enough water to give 375 mL of soloution, what is the molarity ... vo volume of solute . ... v/v ethanol, how much 95% v/v ethanol ... prepare 200. mL ...

You might be interested in

A ray of yellow light has a wavelength of about 5.8×10−7 m. Will exposure to yellow light cause electrons to be emitted from ces

Dima020 [189]

Given the wavelength of the yellow light (700 nm. in this case) we can find the frequency
by dividing the speed of light c by the wavelength w, that is: f = c/w and we know that 
c is equal to 2.998 * 10**8 meters per second. 
So the frequency f = (2.998 * 10**8) / (7.0 * 10**-7) = 4.283 * 10**14 cycles per sec. 
(or Hz.) Since the threshold frequency of Cs is 9.39 * 10**14 Hz, the red light doesn't 
have a high enough frequency (or energy) to cause electron emission. 
Hope this answers your question.

8 0

3 years ago

If 6.4 miles of Fe react with excess O2, how many miles of Fe2O3 can be formed? 4 Fe + 3 O2 -> 2 Fe2O3

Yuri [45]

I'm assuming that by "miles" you mean moles.

If O2 is the excess reactant, that means Fe is the limiting reactant. That means that the amount of product being formed depends on the amount of Fe reactant present. To calculate the moles of Fe2O3 formed, start with the given 6.4 moles of Fe and use the mole to mole ratio given by the reaction as shown below:

6.4 mol Fe x $\frac{2 mol Fe2O3}{4 mol Fe}$ = 3.2 mol Fe2O3

6 0

3 years ago

how many moles of nitrogen gas are produced in the reaction if we started with 6 moles of ammonium nitrate

babunello [35]

9moIN2 :
The molar ratio between Nitrogen and ammonia is
1
:
3
, therefore, to produce 18 moles of ammonia, we will need

7 0

3 years ago

PLS HELP ME WILL GIVE BRAIN THINGYYYYY

alexandr1967 [171]

Answer:

C, when the ball lands it will have the least amount potential energy.

Explanation:

here is a picture that should help you.

6 0

3 years ago

What is a maximum negative displacement of a wave

AnnZ [28]

The maximum negative displacement of a wave is the same as its amplitude.

As a wave travels through space, its particles are sometimes above the

x-axis (+) and sometimes below it (-).

The maximum displacement from the axis is the amplitude of the wave.

The amplitude of the wave is the same in both the positive and negative directions.

5 0

3 years ago