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
BlackZzzverrR [31]
3 years ago
12

How much heat is required to change the temperature of 100 grams of water from 25 to 55oc?

Chemistry
1 answer:
marysya [2.9K]3 years ago
5 0
Hthe heat required  to change the temperfature  of 100 grams of water  from 25 to 55 c is calculated as below

Q(heat) = M(mass) x C(specific heat capacity) x delta T(change  in temperature)

M= 100 grams
C= 4.18 j/g/c
delta T= 55-25 =30c

Q=100 g x4.814 j/g/c x  30c = 12552  joules
You might be interested in
A sample is decomposed in the laboratory and found that it contains 52.2% carbon (C), 13.0% hydrogen (H), and 34.8% oxygen (O).
Andrej [43]
The empirical formula would be C2H6O
7 0
4 years ago
How many types of alkanol do we have
oksano4ka [1.4K]
I think you mean alcohol ? if so there are a few basic types including ethanol
6 0
3 years ago
How many grams of water are produced from reacting 25 grams of oxygen gas with hydrogen gas to produce water?
Serhud [2]

Answer:

take these as notes ig:)

Explanation:

reaction equations to make connections between the reactants and products in reactions. ... pathway: mol of O2 → mol of H2O → grams of H2O. 3.5 mol ... 25 g KClO3 ... How many grams of hydrogen gas are produced from the reaction of 221.

6 0
3 years ago
Draw the major organic substitution product(s) for (2R,3S)-2-bromo-3-methylpentane reacting with the given nucleophile. Indicate
Andrew [12]

Answer:

(2R,3S)-2-ethoxy-3-methylpentane

and

(2S,3S)-2-ethoxy-3-methylpentane

Explanation:

For this case, we will have  CH_3CH_2O^- as nucleophile. Also, this compound is also in excess. So, we will have as solvent CH_3CH_2OH a protic solvent. Therefore the Sn1 reaction would be favored.

The first step would be the carbocation formation followed by the attack of the nucleophile. In this case both isomers would be produced: R and S (see figure).

7 0
3 years ago
What is the reactivity trend of halogens?
RSB [31]
Reactivity trends of halogen:

1) Melting point and boiling points increased down the
group

2) Colour becomes darker.
E.g. Fluorine (pale yellow)
Chlorine (yellowish-green)
Bromine (reddish-brown)
Iodine (purplish-black)
Astatine (black)

3) The reactivity decreases down the group.
Reactivity:
F > Cl > Br > I > At
3 0
3 years ago
Other questions:
  • The thermite reaction, in which powdered aluminum reacts with iron oxide, is highly exothermic: 2Al(s) + F e2O3 (s)→A l2O 3 (s) 
    8·1 answer
  • Through the process of photosynthesis, _ energy is transformed into _ energy
    10·2 answers
  • how emissions, such as sulfur dioxide, nitrogen oxides or carbon dioxide from power plants contribute to the making of ozone?
    13·1 answer
  • The number of electrons in outer ring for cesium
    13·1 answer
  • Example. A Student wants to increase the maximum if sugar that can dissolve in water..She crushes the sugar and then stirs it in
    13·2 answers
  • Which force acts an an object to move it from rest or a constant, straight-line motion?
    6·1 answer
  • 3)<br> _C2H4O2 + _ 02 → _ CO2 + _ H2O
    12·1 answer
  • What is the formula of nitrous acid?<br> Α. ΗΝ<br> Β. ΗΝΟΣ<br> C. HNO3<br> D. HΝΟ,
    15·1 answer
  • Hurry please need fast
    10·1 answer
  • Identify the correct equilibrium constant expression for this equation:
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!