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
Levart [38]
3 years ago
15

How many molecular does 36.0 grams of water represent?

Chemistry
1 answer:
rewona [7]3 years ago
4 0
Answer: <span>1.20 x 10^24 molecules

Hope this helps!</span>
You might be interested in
Neutrons are found in the nucleus and separate the other particles so that the strong force can hold the nucleus together. Which
Levart [38]

Answer:

Protons

Explanation:

Protons are positively charged and needs to be separated so they don’t repel

5 0
3 years ago
Mg(Oh)2 calculate molar mass
kvv77 [185]

Answer:

From molar mass=total RAM

Mg=24,O=16,H=1

24+(16+1)×2

Therefore Molar mass=58g/mol

4 0
3 years ago
Dumbledore decides to gives a surprise demonstration. He starts with a hydrate of Na2CO3 which has a mass of 4.31 g before heati
vovikov84 [41]

Answer:

Na₂CO₃.2H₂O

Explanation:

For the hydrated compound, let us denote is by Na₂CO₃.xH₂O

The unknown is the value of x which is the amount of water of crystallisation.

Given values:

Starting mass of hydrate i.e Na₂CO₃.xH₂O = 4.31g

Mass after heating (Na₂CO₃) = 3.22g

Mass of the water of crystallisation = (4.31-3.22)g = 1.09g

To determine the integer x, we find the number of moles of the anhydrous Na₂CO₃ and that of the water of crystallisation:

        Number of moles  = \frac{mass }{molar mass }

Molar mass of Na₂CO₃ =[(23x2) + 12 + (16x3)]  = 106gmol⁻¹

Molar mass of H₂O = [(1x2) + (16)] = 18gmol⁻¹

Number of moles of Na₂CO₃ = \frac{3.22}{106} = 0.03mole

Number of moles of H₂O =  \frac{1.09}{18} = 0.06mole

From the obtained number of moles:

                          Na₂CO₃                               H₂O

                           0.03                                    0.06

Simplest

Ratio                  0.03/0.03                         0.03/0.06

                                 1                                      2

Therefore, x = 2    

7 0
4 years ago
Help please!!!!!!!!!!!!
pav-90 [236]

Answer:

0.004953

Explanation:

8 0
3 years ago
A student must use 220 mL of hot water in a lab procedure. Calculate the amount of heat required to raise the temperature of 220
Inessa [10]

Answer:

64,433.6 Joules

Explanation:

<u>We are given</u>;

  • Volume of water as 220 mL
  • Initial temperature as 30°C
  • Final temperature as 100°C
  • Specific heat capacity of water as 4.184 J/g°C

We are required to calculate the amount of heat required to raise the temperature.

  • We know that amount of heat is calculated by;

Q = mcΔT , where m is the mass, c is the specific heat, ΔT is the change in temperature.

Density of water is 1 g/mL

Thus, mass of water is 220 g

ΔT = 100°C - 30°C

    = 70°C

Therefore;

Amount of heat, Q = 220g × 4.184 J/g°C × 70°C

                               = 64,433.6 Joules

Thus, the amount of heat required to raise the temperature of water is 64,433.6 Joules

7 0
3 years ago
Other questions:
  • A wire weighing 0.250 g and containing 94.75% Fe is dissolved in HCl. The iron is completely oxidized to Fe3+ by bromine water.
    11·1 answer
  • Which of the following agencies provide research funding that is not federally financed? A. Department of Energy B. National Ins
    10·1 answer
  • Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition react
    15·2 answers
  • If silicon has a charge of -4, how many electrons does it have
    10·1 answer
  • The metal content of iron in ores can be determined by a redox procedure in which the sample is first oxidized with Br2 to conve
    11·1 answer
  • What is the ph of 0.0080 M HCI
    10·2 answers
  • Help me plzzz !!!!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • The shape of a molecule with no multiple bonds and a central atom with two bonding pairs and too lone pairs of electrons is
    8·1 answer
  • Is a Krypton atom still a Krypton atom if you change the number of neutrons?
    7·1 answer
  • Isotopes are:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!