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
jek_recluse [69]
3 years ago
5

What is the molarity of 5.39 grams of CaCl2 dissolved in 609 mL of water? (molar mass = 110.98 g/mol)

Chemistry
1 answer:
Ivenika [448]3 years ago
3 0
Use google it works well
You might be interested in
Magnesium reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas. Write a balanced chemical equation for t
Alona [7]

Answer:

The balanced chemical equation is Mg + 2HCl ⇒ MgCl2 + H2

The molarity of the hydrochloric acid solution is HCl 0.04 M and the pH = 1.4.

The volume of hydrogen gas produced by the reaction of 0.510 g of Mg will be 0.482 L.

Explanation:

First, for the balanced equation you have to consider the oxidation state of the elements to find subscripts. Then you can find the correct coeficients. Mg= +2, Cl = -1.

Mg + HCL ⇒ MgCl2 + H2

For the molarity of the solution you have to notice tha if 0.510 grams of Mg reacts with 0,5 L of hydroclhoric acid, and from the previous equation 1 mol of Mg reacts with 2 mol HCl.

The atomic mass of Mg = 24.31 grs/mol

24.31 grs------------ 1 mol Mg

0.510 grs------------ x=0.02 mol Mg.

If 1 mol of Mg reacts with 2 mol HCl, then 0.02 mol of Mg will react with

0.04 mol HCl. So, the molarity of the solution is 0.04 M HCl.

Then to calculate the pH we use the formula pH = - log [H+]

⇒ pH = -log [0.04]⇒ pH=1.4.

Finally, from the balanced equation and the findings described, and considering that at 25°C and 1.00 atm 1 mol of gas has volume of 24.1 L.

1 mol H2----------- 24.1 L

0.02 mol H2----- x= 0.482L.

3 0
3 years ago
The reaction for producing glucose in plants, called photosynthesis, is:
Firlakuza [10]

Answer:

41.16 moles of H2O

Explanation:

Ratio for the products-reactants is 1:6, so 1 mol of glucose is produced when plants use 6 moles of water.

Then, let's make a rule of three:

1 mol of glucose is produce by using 6 moles of water

6.86 moles of glucose are produced by the use of (6 . 6.86)/1 = 41.16 moles of H2O

8 0
3 years ago
A
Aleksandr [31]

Answer:

D. Using a battery

3 0
3 years ago
What organisms appeared on Earth First?
dusya [7]
It is B because horn coals are bigger and I read it in a book
5 0
3 years ago
Write the chemical formula for
nataly862011 [7]
Ba2Cl
NaS2
The numbers are in subscript
6 0
3 years ago
Read 2 more answers
Other questions:
  • A 0.150 M sodium chloride solution is referred to as a physiological saline solution because it has the same concentration of sa
    6·1 answer
  • In which molecule the attraction between H and the atom to which it is bonded be the greatest
    13·1 answer
  • Methanol, CH3OH, has been considered as a possible fuel. Consider its oxidation: 2 CH3OH(l) + 3 O2(g) → 2 CO2(g) + 4 H2O(g) ΔG =
    9·1 answer
  • The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temp
    14·2 answers
  • Which of the following cannot be classified as a mixture? *
    8·1 answer
  • An object has a density of 4.5kg/mL and a mass of 3.56kg. What is the volume of the object in ml?
    10·1 answer
  • How is fractional distillation of crude oil related to stoichiometry
    15·1 answer
  • Help me!!! :(<br> Plissss!!!!!
    11·1 answer
  • Lead (II) nitrate and magnesium iodide solutions are mixed
    6·1 answer
  • From the list of substances, identify each as a strong acid, strong base, or neither a strong acid nor a strong base.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!