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
Soloha48 [4]
3 years ago
6

How many milliliters of a 1.25 molar HCL solution would be needed to react completely with 60 g of calcium metal

Chemistry
1 answer:
Svet_ta [14]3 years ago
3 0
Ca + 2HCl = CaCl₂ + H₂

m(Ca)=60 g
c=1.25 mol/l
M(Ca)=40g/mol
v-?

m(Ca)/M(Ca)=m(HCl)/[2M(HCl)]=n(HCl)/2

n(HCl)=2m(Ca)/M(Ca)

n(HCl)=cv

cv=2m(Ca)/M(Ca)

v=2m(Ca)/{cM(Ca)}

v=2·60g/mol/{1.25mol/l·40g/mol}=2.4 l = 2400 ml

2400 milliliters of a 1.25 molar HCl solution would be needed

You might be interested in
God, cure my stupidity.
Cloud [144]
The answer is the third one
4 0
3 years ago
Read 2 more answers
Solve fasttt<br><br> C7H17+O2=CO2+H2O<br><br> Balancing Equations
sertanlavr [38]

Answer:

The answer to your question is

                                        4C₇H₁₇  + 45 O₂    ⇒   28 CO₂   +  34H₂O  

Explanation:

Write the equation

                                        C₇H₁₇  +    O₂    ⇒    CO₂   +    H₂O  

Process

1.- Check if the equation is balanced

                                 Reactants            Element              Products

                                        7                          C                           1

                                       17                          H                          2

                                        2                          O                          3

As the number of reactants and products is different, we conclude that the reaction is unbalanced.

2.- Write a coefficient "7" to CO₂   and a coefficient of 17/2 to H₂O

                                      C₇H₁₇  +    O₂    ⇒   7CO₂   +  \frac{17}{2}H₂O  

                                 Reactants            Element              Products

                                        7                          C                           7

                                       17                          H                          17

                                        2                          O                          51/2

3.- Write a coefficient of 45/2 to the O₂, and multiply all the equation by 2.

                         4C₇H₁₇  + 45 O₂    ⇒   28 CO₂   +  34H₂O  

                  Reactants            Element              Products

                        28                          C                        28

                        68                          H                        68

                        90                          O                        90

5 0
3 years ago
What is one way a pathogen can enter the body?
Ipatiy [6.2K]
I’m pretty sure it’s Nose
8 0
3 years ago
Read 2 more answers
Someone please help me !!
Bezzdna [24]

Answer:

3

Explanation:

6 0
3 years ago
Describe the three types of system: a.open: b.closed: c. Isolated:
Mnenie [13.5K]

An open system is when there is a transfer of energy and matter with its surroundings.

A closed system is where there is a transfer of energy, may it be heat or work, but not matter with its surroundings.

An isolated system is where there is no transfer of energy or matter with its surroundings.

4 0
2 years ago
Other questions:
  • 3. Give three examples of how microorganisms might demonstrate the characteristics of life
    12·2 answers
  • What characteristic must be true of a good hypothesis
    8·1 answer
  • Who wasthe first person who suggested that matter was made up of atoms ​
    15·2 answers
  • In the box below draw the tetrahedral representation of the s enantiomer of the amino acid valine, ch3ch(ch3)ch(nh2)co2h.
    13·1 answer
  • Which is a derived unit?<br><br> joule<br><br> millimeter<br><br> kilogram<br><br> micrometer
    12·2 answers
  • _______ waves occur when the motion of the medium is parallel to the direction of the wave.
    11·1 answer
  • Which anthropogenic pollutants are implicated in the formation of most acidic precipitation? 1. carbon oxides 2. ozone and carbo
    5·1 answer
  • In which way does electricity flow in a DC circuit? *
    14·1 answer
  • My labmate discovered a new compound and wanted to try to determine what it could be. We noticed that when mixed with an acid, i
    8·1 answer
  • Please help....thank you
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!