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
Hatshy [7]
3 years ago
9

How many calories are required to raise the temperature of 105 g of water from 30.0°C to 70.0°C?

Chemistry
1 answer:
BartSMP [9]3 years ago
5 0
There  number of   calories that are  required to  raise  the  temperature  of  105 g  of  water  from  30.0  c  to 70.0  c  is calculated as  follows

Q(heat)=  mass(m) x  specific heat  capacity  of   water ( 1 cal/g/c)  x  delta T ( change  in  temperature

delta T = 70.0-  30.0=   40.0 c

Q=   105 g x 1 cal/g/c  x  40 c = 4200 calories   is  needed to  raise  temperature  of  water from 30 c   to  70 c
You might be interested in
Help PLEASE PLEASE PLEASEEEEE I will really appreciate it thank you!! Will mark brainly Calculate the total energy in 1.5 x 10^1
hoa [83]

Answer:

.hshshsh

Explanation:

hzhhzhzhhzjks

7 0
3 years ago
How do you explain reaction of stiochiometry
Mama L [17]

Answer:

Chemical reactions are balanced by adding coefficients so that the number of atoms of each element is the same on both sides. Stoichiometry describes the relationship between the amounts of reactants and products in a reaction.

Explanation:

3 0
3 years ago
Сгорело 6 г угля С. Вычислите массу образовавшегося оксида углерода (IV)<br>просто скажите ответ
skad [1K]
English<span>Сгорело 6 г угля С. Вычислите массу образовавшегося оксида углерода (IV)
просто скажите ответ</span>
7 0
3 years ago
A glucose solution that is prepared for a patient should have a concentration of 180 g/L. A nurse has 18 g of glucose. How many
Anuta_ua [19.1K]
You start by using proportions to find the number of liters of solution:

180 g of glucose / 1 liter of solution = 18 g of glucose / x liter of solution


=> x = 18 g of glucose * 1 liter of solution / 180 g of glucose = 0.1 liter of solution.


If you assume that the 18 grams of glucose does not apport volume to the solution but that the volume of the solution is the same volumen of water added (which is the best assumption you can do given that you do not know the how much the 18 g of glucose affect the volume of the solution) then you should add 0.1 liter of water.

Answer: 0.1 liter of water.

 
6 0
3 years ago
Read 2 more answers
1.5 moles are present in 60.0 grams of calcium.
Andrew [12]

Answer:

True.

Explanation:

To know which option is correct, let us calculate the number of mole present in 60g of calcium. This is illustrated below:

Mass of Ca = 60g

Molar Mass of Ca = 40g/mol

Number of mole Ca =....?

Number of mole = Mass/Molar Mass

Number of mole of Ca = 60/40

Number of mole Ca = 1.5 moles.

From the calculations made above, we can see that 1.5 moles are present in 60.0 grams of calcium

3 0
3 years ago
Other questions:
  • Consider the following balanced reaction between hydrogen and nitrogen to form ammonia:
    14·1 answer
  • What volume of gold would be equal in mass to a piece of copper with a volume of 141 ml? the density of gold is 19.3 g/ml; the d
    14·1 answer
  • _______ is the application of scientific knowledge to solve problems or create new products.
    15·2 answers
  • Which of the following laboratory procedures best illustrates the law of conservation of mass?
    15·2 answers
  • Do you think that scientists should continue to try to create super-heavy elements and expand the periodic table? Explain why or
    11·2 answers
  • State the Periodic Law. Why is it so important in the study of chemistry?
    10·1 answer
  • The number of valence electrons in each atom of an element affects the element’s
    13·1 answer
  • Which statement best describes what happens during a chemical reaction?
    9·1 answer
  • If a compound has two atoms of aluminum (AI) and three atoms of oxygen (O) what would its chemical formula look like?
    5·1 answer
  • A metal atom and a non-metal atom bond together. What type of bond do they form?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!