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
GREYUIT [131]
2 years ago
10

If I add 2.75 g of CaO to 155 mL of distilled water, what will be the concentration of the solution be?

Chemistry
1 answer:
IRINA_888 [86]2 years ago
7 0
M = m/L
moles of CaO = 2.75g / molar mass
2.75g/ 56.08g = 0.049moles CaO
155mL / 1000 = 0.155 L
M= 0.049moles/0.155L
M=0.316
You might be interested in
The density of lead is 11.3g/cm^3 and the density of chromium is 7.14g/cm^3. If we have one gram of each metal, what is the rati
Lady bird [3.3K]

The ratio of the volume of lead to the volume of chromium is 22 : 35

Density is simply defined as the mass of a substance per unit volume of the substance.

<h3>Density = mass / volume </h3>

To solve the question given above, we'll begin by calculating the volume of lead and chromium. This can be obtained as follow:

<h3>For Lead:</h3>

Mass of lead = 1 g

Density of lead = 11.3 g/cm³

<h3>Volume of lead =? </h3>

Density = mass /volume

11.3 = 1 / Volume

Cross multiply

11.3 × Volume = 1

Divide both side by 11.3

Volume = 1 / 11.3

<h3>Volume of lead = 0.088 cm³</h3>

<h3>For Chromium:</h3>

Mass of chromium = 1 g

Density of chromium = 7.14 g/cm³

<h3>Volume of chromium =? </h3>

Density = mass /volume

7.14 = 1 / Volume

Cross multiply

7.14 × Volume = 1

Divide both side by 7.14

Volume = 1 / 7.14

<h3>Volume of chromium = 0.14 cm³</h3>

Finally, we shall determine the ratio of the volume of lead to the volume chromium. This can be obtained as follow:

Volume of lead = 0.088 cm³

Volume of chromium = 0.14 cm³

<h3>Ratio of the volume of lead to chromium =? </h3>

Ratio = Volume of lead / Volume of chromium

Ratio = 0.088 / 0.14

Ratio = 22 / 35

<h3>Ratio = 22 : 35</h3>

Therefore, the ratio of the volume of lead to the volume chromium is 22 : 35

Learn more: brainly.com/question/17262276

5 0
3 years ago
Plants can provide the materials that animals use in cellular respiration, and animals can provide some of the materials that pl
IrinaK [193]

Answer:

it produce atp

Explanation:

.............

6 0
2 years ago
What is Br mass number?
Fofino [41]

Name Bromine

Symbol Br

Atomic Number 35

Atomic Mass 79.904 atomic mass units

Number of Protons 35

Number of Neutrons 45

Number of Electrons 35

Melting Point -7.2° C

Boiling Point 58.78° C

Density 3.119 grams per cubic centimeter

Normal Phase Gas

Family Halogens

Period 4

Cost $4.90 per 100 grams

3 0
3 years ago
An acetic acid buffer solution is required to have a pH of 5.27. You have a solution that contains 0.01 mol of acetic acid. What
Kipish [7]

Answer:

the molarity of sodium acetate is 53

7 0
3 years ago
When heat is removed from a substance, explain how molecules are affected
sweet [91]
Molecules are cooler so they bocme more dense.. move very slow, have less kinetic energy and are not in random motion.
4 0
3 years ago
Read 2 more answers
Other questions:
  • When a reaction takes place in a SEALED FLASK,<br> the TOTAL MASS of the system...
    11·1 answer
  • How do plants and animals use mitosis?
    15·1 answer
  • Which could make up a solution?
    9·1 answer
  • Which of the following is NOT a characteristic of liquids?
    10·1 answer
  • _____ determines the type of element an atom is. The number of neutrons The number of electrons The number of protons The number
    12·2 answers
  • Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following process: Hydrogen cyanide is used t
    10·1 answer
  • If the density of nitrogen gas at a certain pressure and temperature is 1.20 g/l, how many moles of nitrogen gas are in 15.0 l
    8·1 answer
  • In general, ionic compounds are hard solids at ambient temperatures but they shatter fairly easily. How do these two properties
    8·1 answer
  • Cuánto es aproximadamente 29, 029 pies en millas
    14·1 answer
  • During action potential, positively charged ________ ions move inside the cell.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!