1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
juin [17]
3 years ago
10

A cylindrical glass tube 10.3 cm in length is filled with mercury (density = 13.6 g/mL). (The volume of a

Chemistry
1 answer:
PolarNik [594]3 years ago
6 0

Answer:

0.982 cm

Explanation:

Given data:

Density= 13.6 g/mL

mass= 106.3 g

volume = ?

Formula:

d=m/v

v= m/d

v= 106.3 g/ 13.6 g/mL

v= 7.816 mL

Now we have to find the radius of tube:

Formula:

V= πr²h

v= 7.816 ml

π= 22/7 = 3.14

h= 10.3 cm

now we will put the values in formula:

V= πr²h

7.816 mL= 3.14× r² × 10.3 cm

7.816/ 32.342 = r²

r² = 0.242 mL/cm

r= 0.491 cm

Formula for diameter is given below:

diameter= 2× radius

diameter= 2× 0.491 cm

diameter= 0.982 cm

You might be interested in
A scientist is measuring the rate of an enzyme-catalyzed reaction that produces a red-colored product. as the solution containin
slavikrds [6]
The answer would be A will increase and T <span>will decrease.

The product of this reaction emits red light because it absorbs green and blue light. As the reaction occurs, the concentration of the product increase. This will makes absorbance of green and blue light increases and the solution will become redder.</span>
8 0
3 years ago
Read 2 more answers
Determine the concentration of H+ ions in an aqueous solution where [OH-] =2.25 × 10^-4 M. I have 29 minutes I beg u guys pls hu
mixas84 [53]

but where Is the volume in order for us to determine the concentration. since we have moles in H+ ions

then you can say

concentration = M*1000/V

6 0
3 years ago
A 13-gram rubber stopper is attached to a 0.93-meter
makkiz [27]
<h3>Answer:</h3>

The centripetal acceleration is 26.38 m/s²

<h3>Explanation:</h3>

We are given;

  • Mass of rubber stopper = 13 g
  • Length of the string(radius) = 0.93 m
  • Time for one revolution = 1.18 seconds

We are required to calculate the centripetal acceleration.

To get the centripetal acceleration is given by the formula;

Centripetal acc = V²/r

Where, V is the velocity and r is the radius.

Since time for 1 revolution is 1.18 seconds,

Then, V = 2πr/t, taking π to be 3.142 ( 1 revolution = 2πr)

Therefore;

Velocity = (2 × 3.142 × 0.93 m) ÷ 1.18 sec

             = 4.953 m/s

Thus;

Centripetal acceleration = (4.953 m/s)² ÷ 0.93 m

                                        = 26.38 m/s²

Hence, the centripetal acceleration is 26.38 m/s²

6 0
3 years ago
The quinine in tonic water shines a strange blue-white colour when lit with UV light. Explain what is happening here.
Alecsey [184]

Answer:

Here's what I get.

Explanation:

Quinine contains phosphors, substances that glow when they are hit with certain wavelengths of light.

The phosphors in quinine absorb UV light, which is invisible to our eyes.

Electrons in the phosphors absorb the UV energy and are excited to higher energy levels.

When the electrons drop back to lower energy levels, they emit some of this energy as a glowing blue visible light.  

5 0
3 years ago
A space probe identifies a new element in a sample collected from an asteroid. Successive ionization energies (in attojoules per
melomori [17]
Ionization energy (IE) is the amount of energy required to remove an electron.

If you observe the IEs sequentially, there is a large gap between the 2nd and 3rd. This suggests it is difficult to remove more than 2 two electrons. Elements that lose two electrons to become more stable are found in the Group 2A (2 representing the number of electrons in the outermost valence shell).

4 0
3 years ago
Read 2 more answers
Other questions:
  • Write the name of the following compound: H3PO4
    15·2 answers
  • The experimental evidence that electrons could act as waves was based on quantized wavelengths and diffraction pattern evidence.
    9·2 answers
  • How many moles are in 74 g KI?
    12·1 answer
  • Which information shows the longest wavelength? speed = 700 m/s and frequency = 350 hz speed = 300 m/s and frequency = 100 hz sp
    14·2 answers
  • In a chemical reaction, the elements magnesium and chlorine combined to form magnesium chloride (MgCl2). Which statement
    10·1 answer
  • How many oxygen molecules are in 22.4 liters of oxygen gas at 273 K and 101.3 kPa?
    7·1 answer
  • What is the molarity of 62grams of ammonium in 5liters of water?
    13·1 answer
  • 1. How do you determine how many protons are in a neutral element?
    14·1 answer
  • What is the concentration of hydrogen ions in a solution of KOH with a pOH of 1.72?
    14·1 answer
  • Rb2SO4 is the formula for
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!