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
mylen [45]
3 years ago
7

Please answer this time without just getting points D.​

Chemistry
1 answer:
xz_007 [3.2K]3 years ago
4 0
D is the answer here look

You might be interested in
It takes 330 j of energy to raise the temperature of 14.6 g of benzene from 21.0 °c to 28.7 °c at constant pressure. What is the
Akimi4 [234]

The mathematical expression for heat capacity at constant pressure is given as:

Q=n\times C_{p}\times \Delta T   (1)

where, Q = heat capacity

C_{p} =  molar heat capacity at constant pressure

\Delta T = change in temperature

n = number of moles

Therefore, \Delta T = 28.7^{o}C-21^{o}C

= 7.7 ^{o}C

Number of moles  =\frac{given mass in g}{molar mass}

= \frac{14.6 g }{78.11 g/mol}

= 0.186 mole

Put the values in formula (1)

330 J=0.186 mole\times C_{p}\times (7.7 ^{o}C+ 273) (conversion of degree Celsius into kelvin)

C_{p} = \frac{330 J}{0.186 mole\times 280.7 K}

= \frac{330 J}{52.2102 mole K}

= 6.32 J /mol K

Hence, molar heat capacity of benzene at constant pressure  = 6.32 Jmol^{-1} K^{-1}

6 0
4 years ago
Consider the following generic chemical equation: A + B → C + D Reactant A contains 85.1 J of chemical energy. Reactant B contai
irakobra [83]

Answer:

Product D contains 30 J

Explanation:

We know energy does not destroy or create, it only transforms. So, at the right side of the equation we have the energy of the reactant A and the energy of the reactant B, as a sum, and, as a result we have to get the same energy plus the energy absorbed by the reaction.

So, we have,

Ea+Eb = Eabsorbed+Ec+Ed

Ed = Ea+Eb-Eabsorbed-Ec

Ed = 85.1 J + 87.9 J - 104.3 J - 38.7 J

Ed = 30 J

3 0
4 years ago
Read 2 more answers
NEED HELP <br> WILL MARK DOWN BRAINLIEST
Komok [63]
1. In 1687 following 18 months of intense and effectively nonstop work
2.Hooke
3.Halley
4. Halley urged newton to write Principia mathematica and when the Royal society declined to pay the cost of publishing Halley paid for it out of his own pocket
5.Through using a telescope Galileo Galilei was able to prove the theories of sciences Isaac newton
6. He believe that the speed of an object motion is proportional to the force being applied and inversely proportional to the density of the medium he reason that the object moving in a void would move in definitely fast and thus any and all objects
7. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force
8.gottfried wilhelm von leibniz

6 0
3 years ago
What is the mass in grams of 5.25 x 1024 molecules of NaOH?
Colt1911 [192]

Answer: The mass is 348.8g

Explanation:

We begin by using Avogadro's number to convert the number of molecules of  Sodium Hydroxide to moles.

6.02 x 10∧23 molecules of NaOH -------> 1 mole of NaOH

∴ 5.25 x 10∧24 molecules of NaOH -------> 1/ 6.02 x 10∧23 x 5.25 x 10∧24 =

                                                                    8.72moles.

Having found the number of moles, we then move from moles to gram by using the molar mass of NaOH (i.e the mass of 1 mole of NaOH).

1 mole of NaOH is equivalent to 40g (Molar Mass)

8.72 moles of NaOH would be equivalent to; 40/ 1  x 8.72 = 348.8g

The mass in 5.25 x 10∧24molecules of NaOH is 348.8g

4 0
3 years ago
If a solution conducts electricity, it is positive evidence that
BlackZzzverrR [31]

Answer:

If a solution conducts electricity, it is positive evidence that solute dissolved in solvent is electrolyte.

3 0
3 years ago
Other questions:
  • Which property of table salt is also a property of other ionic compounds
    5·2 answers
  • Drag each label to the correct location.
    12·1 answer
  • Which cells carry nutrients from food to the rest of the cells in the body?​
    6·2 answers
  • What's the branch of science for pollution
    7·1 answer
  • A 10g piece of metal absorbs 150 Joules of heat energy, and its temperature changes from 15° C to 130° C. Calculate the specific
    15·1 answer
  • Plss help ill give 30 points
    12·1 answer
  • What are (at least) six common pollutants that are measured to determine an AQI score?
    6·1 answer
  • Hi can someone help me
    10·1 answer
  • Plz helpp...10pointtss
    6·1 answer
  • How many grams are in 1.53 moles of HCl
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!