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
suter [353]
3 years ago
15

A 5.0 g sample of aluminum with a specific heat of 0.90 J/(g °C) was heated from 22.1°C to 32.1°C. How much heat, to the nearest

joule, did the aluminum gain?
Chemistry
1 answer:
mina [271]3 years ago
7 0
Heat gained in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:

Heat = mC(T2-T1)
Heat = 5(0.90)(32.1 - 22.1)
Heat = 45 J energy gained
You might be interested in
Which explanation is least likely to be evidence for geological processes changing Earth's surface?
juin [17]
D pollution isn’t a geologic process
7 0
3 years ago
Read 2 more answers
Why is it important to keep high acid food away from zinc coated tub
denis23 [38]
The reactions that will take place will generate Zinc salts that will taint the food. Excessive levels of these salts can cause sickness, so it is very important to ensure food hygiene standards are met by keeping acidic foods away from damaging materials like zinc that will erode and get into the food.
3 0
3 years ago
Assignment<br>Explain why it is not advisable to wear<br>black silky cloth in the sun​
Crazy boy [7]

Answer:

It is not water absorbant and also the colour black, due to it's dark nature makes the person wearing the cloth feel hot. Unlike cotton, silk is not at all water absorbant as it does not absord any sweat produced in the wearers body

3 0
3 years ago
A 25.0-mL sample containing Cu2+ gave an instrument signal of 25.2 units (corrected for a blank). When exactly 0.500 mL of 0.027
irga5000 [103]

Answer:

The molar concentration of Cu²⁺ in the initial solution is 6.964x10⁻⁴ M.

Explanation:

The first step to solving this problem is calculating the number of moles of Cu(NO₃)₂ added to the solution:

C = \frac{n}{V} \\0.0275 = \frac{n}{0.0005} \\

n = 1.375x10⁻⁵ mol

The second step is relating the number of moles to the signal. We know the the n calculated before is equivalent to a signal increase of 19.9 units (45.1-25.2):

1.375x10⁻⁵ mol _________ 19.9 units

        x              _________  25.2 units

x = 1.741x10⁻⁵mol

Finally, we can calculate the Cu²⁺ concentration :

C = 1.741x10⁻⁵mol / 0.025 L

C = 6.964x10⁻⁴ M

7 0
3 years ago
Which process is an example of a chemical change?
Ivanshal [37]
A metal rail rusting in damp weather.
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the equality in this reaction K+H2O-&gt;KHO+H2<br><br> Pls help me
    13·1 answer
  • When a strong acid reacts complete with a strong base (a neutralization reaction), what compounds are always formed?
    13·2 answers
  • BF3 type of compound
    15·1 answer
  • Isotopes of elements have different:
    14·1 answer
  • A solid that form from liquid in a chemical reaction is called
    11·1 answer
  • the relationship between the heated air particles inside a hot air balloon and the cooler air outside the balloon?
    10·2 answers
  • State two methods to increase the rate of the chemical reaction and explain
    13·1 answer
  • Wait is there a difference between number of mol and number of moles? Or do they mean the same thing lol
    14·1 answer
  • Why is the sun colder in winter?
    10·1 answer
  • BRAINLIEST TO FIRST RIGHT ANSWER
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!