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
sveticcg [70]
3 years ago
8

6. A piece of solid gold was heated from 274K to 314K. 35.73 of energy was needed to raise the temperature.

Chemistry
1 answer:
ivanzaharov [21]3 years ago
5 0

From Q = mcΔT, we can rearrange the equation to solve for mass, m = Q/cΔT. The specific heat capacity, c, of solid gold is 0.129 J/g °C. I'm assuming that the energy is given in joules, as it's not specified in the question as written.

m = Q/cΔT = (35.73 J)/(0.129 J/g °C)(40.85 °C - 0.85°C)

m = 6.92 g of gold was present  

You might be interested in
The density of a metal is 10.5 g/cm3. If the mass of themetal
vitfil [10]

Answer:

11.7 mL

Explanation:

Density of a substance is given by the mass of the substance divided by the volume of the substance .

Hence , d = m / V

V = volume

m = mass ,  

d = density ,

From the question ,

The density of the metal = 10.5 g/cm³

The mass of the metal = 5.25 g

Hence , the volume can be calculated from the above formula , i.e. ,

d = m / V  

V = m / d

V = 5.25 g / 10.5 g/cm³

V = 0.5 cm³

Since , The unit 1 mL = 1 cm³

V = 0.5 mL

The vessel has 11.2 mL of water ,

The new volume becomes ,

11.2 mL +  0.5 mL = 11.7 mL

4 0
3 years ago
Giải thích tại sao chén sấy (hoặc chén nung) dùng chứa tủa phải xử lý cùng với điều kiện xử lý tủa? Thời gian sấy (hoặc nung) bắ
nevsk [136]
Hi how are you doing today Jasmine Jasmine
3 0
2 years ago
Please write balanced equations for these reactions! WILL GIVE BRAINLIEST! 50 POINTS
Romashka [77]

Answer:

(NH4)2S(aq) + Pb(NO3)2(aq) --> 2NH4NO3 (aq) + PbS (s)

3 0
3 years ago
Heart, 5 stars, Brainiest, and 40 coins if right! Answer needed ASAP
kicyunya [14]

Answer:

His kinetic energy is converted into potential energy.

Explanation:

6 0
2 years ago
Anybody know chemistry Grahams law ?
sukhopar [10]
There is two different types but i’ll just do both meanings just incase.

Graham's Law of Diffusion: the rate of diffusion of one gas through another is inversely proportional to the square root of the density of the gas.

Graham's Law of Effusion: the rate of effusion of a gas is inversely proportional to the square root of the density of the gas.

hopes this helps..!
7 0
3 years ago
Other questions:
  • Write the number of atoms of each element found in one unit of the compound:
    8·2 answers
  • Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many liters of hydrogen gas ar
    11·1 answer
  • HELLPPPPPPPPPPPPP<br> :((((((((
    13·2 answers
  • Describe an example of deposition
    14·1 answer
  • 3. Two or more substances that are not
    6·1 answer
  • Carbon tetrachloride, once widely used in fire extinguishers andas a dry cleaning fluid, has been found to cause liver damage to
    15·1 answer
  • Weight measures (2 points) how dense an object is. how large an object is. the amount of mass in an object. the effect of gravit
    10·1 answer
  • What is the effect of day lenght in plant growth? dependent and independent
    8·1 answer
  • The wolf gets enegry from____
    6·1 answer
  • How many grams of NaNO3 can be dissolved in 200mL of water at 40 degrees Celsius?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!