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
Tcecarenko [31]
3 years ago
12

1. If a student needed to calculate the density of irregularly shaped metal beads give a brief explanation of the best way to do

so with a graduated cylinder, water and a balance.2. Using the method described above, calculate the density of a quantity of copper beads. The initial volume of the graduated cylinder with water was 35 ml, the volume of the water plus the beads 40.7 ml and the mass of the beads 50.217 g. What is the density of the beads and what is the percent error.
Chemistry
1 answer:
umka2103 [35]3 years ago
8 0

Answer:

See explanation

Explanation:

The density of an irregular object can be determined using a graduated cylinder, water and a balance as follows.

The irregularly shaped object is weighed in a balance and its mass is recorded. The graduated cylinder is then filled with a given volume of water. This volume of water is also recorded. The irregularly shaped object is then introduced into the graduated cylinder containing the water and the change in volume of the water is recorded.

Volume of the object= change in volume of the water

Density= mass/volume

b)

If the beads weigh 50.217 g

Volume of beads = change in volume of water= 40.7 ml - 35.0ml = 5.7 ml

Density= mass/volume = 50.217 g/5.7 ml = 8.81 g/ml

Accepted value of the density of copper in g/ml = 8.94 g/ml

% error in density = |8.81-8.94|/8.94 ×100

% error in density = 1.45%

You might be interested in
What kinds of intermolecular forces are present in a mixture of ethanol (ch3ch2oh) and water?
Svetllana [295]
<h3><u>Answer;</u></h3>

Dipole-dipole and hydrogen bonding

<h3><u>Explanation;</u></h3>
  • <em><u>A solution of water and ethanol contains the dipole-dipole forces and hydrogen bonds as the intermolecular forces between molecules.</u></em>
  • <em><u>Hydrogen bonding is a type of interactions between molecules that occurs when a partially negative atom such as oxygen end of one of the molecules is attracted to a partially positive hydrogen end of another molecule.</u></em>
  • <em><u>Dipole-dipole forces</u></em> results from the unsymmetrical distribution of electrons, thus the polarity does not balance, thus resulting to a dipole attraction between molecules.
5 0
3 years ago
Read 2 more answers
How many grams are 1.20 x 1025 molecules of calcium iodide?
jeka57 [31]

Answer:

1230

Explanation:

1.20×1025=1230 is your answer

5 0
2 years ago
Which of the following is a combustion reaction?
azamat

Answer:

A.NaOH+HCI+NaCI+H2O

Explanation:

It's a Acid-base

5 0
3 years ago
Which substance can be broken down by a chemical change
ELEN [110]
Lots of substances. Rocks, metals, minerals, you name it.
5 0
2 years ago
Read 2 more answers
__________ is designed to protect you from injuries to your head, face, eyes, ears, hands, feet, respiratory tract, and body. A.
Nadusha1986 [10]
_________ is designed to protect you from injuries to your head, face, eyes, ears, hands, feet, respiratory tract, and body
the answer to this question, is B personal protective equipment
hope this helps :D
3 0
3 years ago
Read 2 more answers
Other questions:
  • 3. How does this difference in language relate to our propensity to save?
    15·1 answer
  • When K2SO4 is separated into its ions, how is it written?
    15·2 answers
  • CHEMISTRY. PLEASE HELP!!
    5·2 answers
  • A molecule contains 12.17g carbon (C), 32.53 g sulfur (S), and 72.19 g chlorine
    15·1 answer
  • What is equivalent to a drink made with 3 ounces of 80 proof vodka?
    11·1 answer
  • Gold(ill) hydroxide is used in medicine, porcelain making, and gold plating. It is quite insoluble in aqueous solution. Which of
    6·1 answer
  • What are the three types of scientific investigations?
    11·2 answers
  • Which formulas could represent the empirical formula and the molecular formula of a given compound?
    6·1 answer
  • Which three statements giving brainluiest
    5·2 answers
  • What is pH - discuss the pH scale
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!