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
AleksAgata [21]
3 years ago
14

A sample of an unknown solid is found to have a volume of 24.3 cm3 and a mass of

Chemistry
1 answer:
Anna71 [15]3 years ago
7 0
<h2>Answer:  8.93 g/cm³</h2>

<h3>Explanation:</h3>

Density = mass ÷ volume

            = 217.0 g ÷ 24.3 cm³

            = 8.93 g/cm³

<h3>∴ the unknown sample of mass 217.0 grams and volume of 24.3 cm³ has a density of 8.93 g/cm³. </h3>

You might be interested in
Does litmus paper indicate if a liquid is a base?
KIM [24]
Yes, I hope this helped
4 0
3 years ago
Read 2 more answers
A concentration cell consists of two Sn/Sn2+ half-cells. The solution in one half-cell A is 0.13 M Sn(NO3)2 and is 0.87 M Sn(NO3
alina1380 [7]
Base on your question where a concentration cell consist of two SN/SN2+half cells. The solution in one half cell A is 0.13M SN(NO3)2 and is 0.87 M Sn(NO3)2 in the other half cell to get the cell potential at 25 degree the answer is 0.059/2 log0.13/0.87
6 0
3 years ago
Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 9.32 g of ethane is
Pie

Answer:

There will remain 8.06 grams of ethane

Explanation:

Step 1: Data given

Mass of ethane = 9.32 grams

Mass of oxygen = 12.0 grams

Molar mass ethane = 30.07 g/mol

Molar mass oxygen = 32.00 g/mol

Step 2: The balanced equation

2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

Step 3: Calculate moles ethane

Moles ethane = mass ethane / molar mass ethane

Moles ethane = 9.32 grams / 30.07 g/mol

Moles ethane = 0.3099 moles

Step 4: Calculate moles oxygen

Moles oxygen = 12.0 grams / 32.0 g/mol

Moles oxygen = 0.375 moles

Step 5: Calculate the limiting reactant

For 2 moles ethane we need 7 moles O2 to produce 4 moles CO2 and 6 moles H2O

O2 is the limiting reactant. It will completely be consumed ( 0.375 moles)

Ethane is in excess. There will react 2/7 * 0.375 = 0.107 moles

There will remain 0.375 - 0.107 = 0.268 moles

Step 6: Calculate mass ethane

Mass ethane = moles ethane * molar mass ethane

Mass ethane = 0.268 moles * 30.07 g/mol

Mass ethane = 8.06 grams

There will remain 8.06 grams of ethane

7 0
3 years ago
2 1.1.4 Quiz: Chemistry of Living Systems
UNO [17]
ITS B. FASHO that’s what I’m think
7 0
3 years ago
A person with a body temperature of 37°C holds an ice cube with a temperature of 0°C in a room where the air temperature is 20.°
Arlecino [84]
The answer is (2). Heat always flows down the temperature gradient, from high temperature to low temperature. Therefore, since the person is the warmest, heat flows from the person to both the ice and the air. Additionally, since the air is warmer than the ice, heat flows from the air to the ice.
8 0
3 years ago
Other questions:
  • If motion starts and stops at the same place is this distance zero ?
    7·1 answer
  • Plant Pigments and Photosynthesis
    12·1 answer
  • Which atmospheric gas has the greatest effect on the weather conditions associated with an air mass? 1. Oxygen 2. Nitrogen 3. Me
    5·1 answer
  • Pls I need
    11·1 answer
  • The chemical equation for zinc in hydrochloric acid is: Zn + HCI = ZnCl2 + H2
    6·1 answer
  • 1. A pure substance contains ONLY one kind of​
    12·1 answer
  • Como se explica o fato de o diamante e o grafite serem formados pelo mesmo elemento, o carbono, e serem materiais completamente
    7·1 answer
  • Who was the old woman that was in the temple during the presentation of Jesus​
    6·1 answer
  • What kind of chemical reaction occurs in a hand-warming product that is worn inside gloves? Explain your answer.
    7·1 answer
  • Which statement best describes a chemical change?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!