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
Bingel [31]
3 years ago
7

4.93x10^25/(6.02 x 10^23)

Chemistry
1 answer:
yuradex [85]3 years ago
8 0

Answer:

2.96786x10^49

Explanation:

multiply using law of indices

You might be interested in
2L of hydrogen has an initial pressure of 750 mmHg, what is the final pressure in mmHg if the volume increases to 20 L with a co
Verdich [7]

Answer: The final pressure is 75 mm Hg.

Explanation:

According to Boyle's law, at constant temperature the pressure of a gas in inversely proportional to volume.

Since, it is given that the temperature is constant. Hence, formula used is as follows.

P_{1}V_{1} = P_{2}V_{2}

Substitute the values into above formula as follows.

P_{1}V_{1} = P_{2}V_{2}\\750 mm Hg \times 2 L = P_{2} \times 20 L\\P_{2} = \frac{750 mm Hg \times 2 L}{20 L}\\= 75 mm Hg

Thus, we can conclude that the final pressure is 75 mm Hg.

3 0
3 years ago
Calculate the pH of a 0.0150 M HNO3 solution. Assume HNO3
stellarik [79]

Answer: 1.824

Explanation: facts

4 0
3 years ago
What mass of mgf2 is contained in 80.85 g of a 22.4% by mass solution of mgf2 in water?
Aleks [24]
Formula: % by mass = (mass of solute / mass of solution] *100

Data:

mass of solution = 80.85 g

% by mass = 22.4%

Unknown = mass of solute

Solution

% by mass = (mass of solute / mass of solution] *100 = >

mass of solute = % by mass * mass of solution / 100

mass of solute = 22.4 * 80.85 / 100 = 18.11 g

Answer: 18.11 g
4 0
3 years ago
Read 2 more answers
Which of the following describes a compound?
Gemiola [76]

A compound is two or more chemically combined elements. Fore example NaCl, CO2, H2O

8 0
3 years ago
How does waer evapourate? one question brainlyist
Ratling [72]

Answer:

water evaportaes from heat it then turns into a gas then can go into a solid one day and repeat the cycle

Explanation:

4 0
3 years ago
Other questions:
  • Determine the concentration of an aqueous solution that has an osmotic pressure of 3.9 atm at 37°C if the solute is sodium chlor
    9·1 answer
  • Solid solution of a metal or nonmetal dissolved in a metal
    6·1 answer
  • HELP!!!! Please choose the correct label for this diagram A. Fossil Correlation B. Uniformitarianism C. Faunal Succession D. Fos
    7·2 answers
  • The protein catalase catalyzes the reaction The Malcolm Baldrige National Quality Award aims to:
    8·1 answer
  • Part a use valence bond theory to devise a hybridization and bonding scheme for co2. match the words in the left column to the a
    15·1 answer
  • Discuss the function of cobalt in action of vitamin B12 and its derivatives and how cobaloximes serve as models for the biologic
    11·1 answer
  • What is accretion?????
    9·2 answers
  • HELP FASTTT
    6·1 answer
  • One of many cells in the retina of the eye that responds to low light. VOCABULARY
    11·2 answers
  • Alan wants to identify an unknown solid compound. Which statement correctly describes a method he could use to identify the comp
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!