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
Rudiy27
3 years ago
14

Suppose you have a solid that looks like gold but you believe it to be fool’s gold. The mass of the solid is 23.5 grams. When th

e solid is lowered into a graduated cylinder the water level rises from 47.5 to 52.2 mL. Is the simple fool’s gold
Chemistry
1 answer:
frutty [35]3 years ago
3 0

Answer:

The sample is fool's gold

Explanation:

Density is defined as the ratio between mass in grams and volume in mililiters.

A sample of pure gold has a density of 19.3g/mL.

Using Archimedes' principle, the volume of the sample is:

52.2mL - 47.5mL = 4.7mL

As the mass of the sample is 23.5g, the density is:

23.5g / 4.7mL = 5g/mL

The denisty of the sample is very different to density of pure gold, that means:

<em>the sample is fool's gold</em>

You might be interested in
An atom that has lost one or more electrons is a(n) _______
kompoz [17]

Answer:

An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.

8 0
3 years ago
Read 2 more answers
Which gas will effuse at the rate closest At a particular pressure and temperature, nitrogen gas effuses at the rate of 79mLs. U
Contact [7]

Answer : The rate of effusion of sulfur dioxide gas is 52 mL/s.

Solution :

According to the Graham's law, the rate of effusion of gas is inversely proportional to the square root of the molar mass of gas.

R\propto \sqrt{\frac{1}{M}}

or,

(\frac{R_1}{R_2})=\sqrt{\frac{M_2}{M_1}}       ..........(1)

where,

R_1 = rate of effusion of nitrogen gas = 79mL/s

R_2 = rate of effusion of sulfur dioxide gas = ?

M_1 = molar mass of nitrogen gas  = 28 g/mole

M_2 = molar mass of sulfur dioxide gas = 64 g/mole

Now put all the given values in the above formula 1, we get:

(\frac{79mL/s}{R_2})=\sqrt{\frac{64g/mole}{28g/mole}}

R_2=52mL/s

Therefore, the rate of effusion of sulfur dioxide gas is 52 mL/s.

4 0
3 years ago
The temperature in mark’s town is 30 degrees Fahrenheit. The temperature in Vikki’s town is 82 degrees Fahrenheit. In both towns
allochka39001 [22]

Answer:

sorry don't know the answer but i really need the points sorry

Explanation:

7 0
3 years ago
Which of the following is NOT an allotrope of carbon? A. graphite B. carbon-13 C. a diamond D. a fullerene
egoroff_w [7]
B. carbon-13 is not an allotrope of Carbon.
Allotropes<span> are elements on the periodic table that have more than one crystalline form. </span>Isotopes<span> are atoms of the same element with the same atomic number but have a different mass number.
C-13 is an isotope of carbon, not an allotrope.</span>
5 0
3 years ago
Any two properties of ethane​
Pavel [41]

Answer:

colorless odorless gas

two carbon atoms

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • The reaction between nitrogen and hydrogen to produce ammonia is described by the equilibrium reaction 3 H 2 + N 2 − ⇀ ↽ − 2 NH
    15·1 answer
  • Choose the words that make each statement true.
    10·1 answer
  • Use the half-reaction method to balance the following equation in acidic solution. It is not necessary to include any phases of
    8·1 answer
  • When a solid is placed in a container and heat is applied, a phase change occurs. Watch the video and identify which of the foll
    10·2 answers
  • Which statement describes the valence electrons in metallic bonds? a)They are shared equally between two atoms. b)They are share
    7·2 answers
  • 50 points guys please help me!!!!!!
    6·1 answer
  • Noz at
    7·1 answer
  • The metal sample suspected of being aluminum is warmed and then submerged into water, which is near room temperature. The final
    14·1 answer
  • I need the answer please
    6·1 answer
  • Atoms of which element can bond to each other to form chains, rings, and networks?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!