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
melisa1 [442]
3 years ago
11

If a sample of copper with a density of 8.90 g/cm3 displaces 13.0 mL of water when placed in a beaker, what is its mass?

Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
6 0
When a body is partially or totally immersed in a fluid it displaces fluid with a volume equivalent to its volume.
The volume of water displaced is equal to the volume of copper
Therefore; mass of copper will be; 
= 8.9 × 13 = 115.7 g
The mass of copper is 116 grams 
 
You might be interested in
3. What is the energy of a photon whose frequency is 5.2 x 1015 Hz? Use the equation: E = hxv
anzhelika [568]

Answer:

3. 3.45×10¯¹⁸ J.

4. 1.25×10¹⁵ Hz.

Explanation:

3. Determination of the energy of the photon.

Frequency (v) = 5.2×10¹⁵ Hz

Planck's constant (h) = 6.626×10¯³⁴ Js

Energy (E) =?

The energy of the photon can be obtained by using the following formula:

E = hv

E = 6.626×10¯³⁴ × 5.2×10¹⁵

E = 3.45×10¯¹⁸ J

Thus, the energy of the photon is 3.45×10¯¹⁸ J

4. Determination of the frequency of the radiation.

Wavelength (λ) = 2.4×10¯⁵ cm

Velocity (c) = 3×10⁸ m/s

Frequency (v) =?

Next, we shall convert 2.4×10¯⁵ cm to metre (m). This can be obtained as follow:

100 cm = 1 m

Therefore,

2.4×10¯⁵ cm = 2.4×10¯⁵ cm × 1 m /100 cm

2.4×10¯⁵ cm = 2.4×10¯⁷ m

Thus, 2.4×10¯⁵ cm is equivalent to 2.4×10¯⁷ m

Finally, we shall determine the frequency of the radiation by using the following formula as illustrated below:

Wavelength (λ) = 2.4×10¯⁷ m

Velocity (c) = 3×10⁸ m/s

Frequency (v) =?

v = c / λ

v = 3×10⁸ / 2.4×10¯⁷

v = 1.25×10¹⁵ Hz

Thus, the frequency of the radiation is 1.25×10¹⁵ Hz.

8 0
2 years ago
The octet rule pertains to:
Vinil7 [7]
I think the answer to c
4 0
3 years ago
Identify whether this describes heat or temperature.<br> Unit of measurement: Celsius
tresset_1 [31]

Answer:

temperature

Explanation:

Celsius is a unit of temperature. Another example of this would be Kelvin or Fahrenheit.

6 0
3 years ago
Commercial manufacturers produce nitric acid (HNO3) by the Ostwald process. The process requires three steps:
Shkiper50 [21]

Answer:

this doesnt make sence ezxplain the subject

Explanation:

5 0
3 years ago
Which pair of elements would most likely form a covalent bond
denpristay [2]

Answer:

Nonmetals and nonmetals tend to form covalent bonds.

or

P and S

Explanation:

5 0
2 years ago
Other questions:
  • How many grams of o2 are required to produce 7.00 g of co2?
    15·1 answer
  • Describe how the energy of a shear wave relates to the direction of particle motion.
    10·1 answer
  • How many molecules of CO2 will be produced by the decomposition
    14·1 answer
  • What is the h concentration in a solution with a ph of 1.25
    6·2 answers
  • Formula for soda glass
    11·1 answer
  • If starch, glucose and NaCl are soaked in the dialysis tubing , will there be a difference between the beginning and after 15min
    14·1 answer
  • A solution of h2so4(aq) with a molal concentration of 2.24 m has a density of 1.135 g/ml. what is the molar concentration of thi
    10·1 answer
  • What is the atomic mass of an atom equal to?​
    8·2 answers
  • Sam investigates the reactivity of metals in air. His observations are shown below.
    15·2 answers
  • Teniendo en cuenta los siguientes fenómenos: ebullición del agua- movimiento de un cuerpo- disolución de sal en agua- combustión
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!