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
svlad2 [7]
3 years ago
9

Question 4 of 15

Chemistry
2 answers:
allochka39001 [22]3 years ago
6 0

Answer:D. 100 j

Explanation:

Anna [14]3 years ago
5 0

Answer:

B.

Explanation:

You might be interested in
Calculate the pressure of the CO₂ (g) in the container at 425 K.
Elanso [62]

The pressure of the CO₂ = 0.995 atm

<h3>Further explanation</h3>

The complete question

<em>A student is doing experiments with CO2(g). Originally, a sample of gas is in a rigid container at 299K and 0.70 atm. The student increases the temperature of the CO2(g) in the container to 425K.</em>

<em>Calculate the pressure of the CO₂ (g) in the container at 425 K.</em>

<em />

<em />

Gay Lussac's Law

When the volume is not changed, the gas pressure is proportional to its absolute temperature

\tt \dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}

P₁=0.7 atm

T₁=299 K

T₂=425 K

\tt P_2=\dfrac{P_1\times T_2}{T_1}\\\\P_2=\dfrac{0.7\times 425}{299}=0.995 `atm

<em />

6 0
3 years ago
Someone help please , I’ll give brain . Question 10 !
Rudik [331]

Answer:it’s c

Explanation:

I just know it is

4 0
3 years ago
What would be the formula for diphosphorus pentoxide ?
aleksley [76]
PbCr04 + P4O10

Hope this helps!
3 0
3 years ago
Read 2 more answers
You are given sodium acetate, 1m hcl, nahco3 and na2co3. Determine which of these four you would need and then show calculations
valentina_108 [34]

solution:

the given compounds are sodium acetate, 1M HCL,NaHCO₃ and Na2CO₃

pH of the buffer solution is 4.7

the value of pKa of sodium bicarbonate is 6.37

the value of pKa of acetic acid is 4.7

calculate concentration of acetic acid by using the following forumula

pH=pKa+lag[salt]/[acid]

substitute the pH and Pka values in the formula.

4.7=4.7+log[salt]/[acid]

log[salt]/[acid]=0

thus, the concentration ratio of the salt and acid should be equal to each other.

Thus, concentration of sodium acetate is 0.05M

Concentration of sodium acetate= concentration of acid

= 0.05M

Volume of the buffer solution is 100mL

The buffer solution can be prepared as 0.05M of 50mL sodium acetate will react with 0.05M of 50mL of 0.05M of HCL.

The chemical equation for neutralization of the weak base with strong can be represented as show as

CH₃COONa+HCL-->CH₃COOH+NaCL


5 0
3 years ago
Which of the following has the greatest influence on the size and force of waves?
svlad2 [7]
Wind speed bc The faster the wind, the longer it blows, or the farther it can blow uninterrupted, the bigger the waves.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Describe how protons determine an element's identity .
    10·1 answer
  • Which of these is NOT a geologic process? A. erosion B. glaciation C. soil formation D. volcanic eruption
    6·2 answers
  • What are the types of radioactive rays that can be produced during a radioactive decay?
    14·1 answer
  • Which of these salts is insoluble in water?
    8·1 answer
  • Coal can be converted to methane gas by a process called coal gasification. The equation for the reaction is the following: 2 C
    12·1 answer
  • For problems 2 &amp; 3, the density of the sample is 0.9977 g/mL and the molar mass of calcium carbonate is 100.0 g/mol. 2. Calc
    12·1 answer
  • Intermolecular distance is the distance between the particles that make up matter. The graph below compares the intermolecular d
    11·2 answers
  • How many grams of oxygen are required to burn 3.01 x 10^23 propane molecules?
    12·1 answer
  • Air is classified as a mixture. What statement must be true about air? (4D)
    9·1 answer
  • All simple metal with acid reactions are ____ displacement reactions.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!