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
Alik [6]
3 years ago
14

A calorimeter made from a can is used to measure the calories in a peanut. During the experiment, the

Chemistry
1 answer:
kari74 [83]3 years ago
3 0

Answer:

The heat generated per gram of sample in calories is 0.87 g

Explanation:

Given that,

A calorimeter made from a can is used to measure the calories in a peanut.

During the experiment, the  measured calories were 35% of the true/accepted value given by references

Suppose, the mass of peanut is 0.4 g and find the

We need to calculate the heat generated per gram of sample in calories

Using formula of heat generated

q=\dfrac{q_{penut\ calorimeter}}{m_{peanut}}

Put the value into the formula

q=\dfrac{0.35}{0.4}

q=0.87\ g

Hence, The heat generated per gram of sample in calories is 0.87 g

You might be interested in
3. Why is timber considered a renewable
sergejj [24]

Answer:

B

Explanation:

4 0
2 years ago
If you are given an unknown liquid that is 1.0 L and has the mass of 500 grams which of the substance would it be. Distilled Wat
kodGreya [7K]
........................................................................
8 0
3 years ago
16. The concentration of a solution of potassium hydroxide is determined by titration with nitric
____ [38]

Answer:

M_{base}=0.709M

Explanation:

Hello,

In this case, since the reaction between potassium hydroxide and nitric acid is:

KOH+HNO_3\rightarrow KNO_3+H_2O

We can see a 1:1 mole ratio between the acid and base, therefore, for the titration analysis, we find the following equality at the equivalence point:

n_{acid}=n_{base}

That in terms of molarities and volumes is:

M_{acid}V_{acid}=M_{base}V_{base}

Thus, solving the molarity of the base (KOH), we obtain:

M_{base}=\frac{M_{acid}V_{acid}}{V_{base}} =\frac{0.498M*42.7mL}{30.0mL}\\ \\M_{base}=0.709M

Regards.

3 0
3 years ago
2. What does the text list and describe?
Mariana [72]

Answer:

C. ways radiation is transferred into and through Earth's atmosphere

Explanation:

6 0
2 years ago
Show with dot and cross diagram of the formation of ions in the reaction of Fluorine with sodium ions.
Kipish [7]

Answer:

Electron dot diagram is attached below

Explanation:

Sodium is alkali metal and present in group one. It has one valence electron. All alkali metal form salt when react with halogens.

Sodium loses its one electron to get stable.  While all halogens have seven valence electrons they need only one electron to get stable electronic configuration.

When alkali metals such as sodium react with halogen fluorine it loses its one valence electron which is accepted by fluorine and ionic bond is formed. The compound formed is called sodium fluoride.

Na + F   →   NaF

In cross and dot diagram electrons of one atom are shown as dots while other atom shown as cross to distinguish.

Electron dot diagram is attached below.

Download pdf
3 0
3 years ago
Other questions:
  • What is the equation of the line that passes through point (4,12) and has a y-intercept of -2?
    8·1 answer
  • The maximum water vapor that air can hold at 30°C is about 30 grams/cubic meter. If the humidity of the air is currently 6 grams
    8·2 answers
  • I bet half these people are kids from lhs rite now lol
    9·2 answers
  • Change 0.00765 kL into mL
    6·2 answers
  • Calculate the density of a sample of metal that has a mass of 1668 g and takes up a volume of 186.2 cm
    14·1 answer
  • An electron is in a region outside the nucleus. An electron
    8·1 answer
  • What is homologous series. write the example. ​
    14·1 answer
  • Are we the only person in the universe?
    12·1 answer
  • Sigh.....................................
    15·2 answers
  • Which will not appear in the equilibrium constant expression for the reaction below?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!