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
Zinaida [17]
3 years ago
14

PLEASEEE I BEGG YOU I WILL LITERALLY SEND YOU MONEY

Chemistry
1 answer:
tankabanditka [31]3 years ago
5 0

Answer:

Q1. 0.82 mol

Q2. 9.20 g

Explanation:

Question 1

Step 1: Given and required data

  • Mass of NaHCO₃ (m): 68.88 g
  • Molar mass of NaHCO₃ (M): 84.01 g/mol

Step 2: Calculate the moles (n) corresponding to 68.88 g of NaHCO₃

We will use the following expression.

n = m/M

n = 68.88 g/(84.01 g/mol) = 0.82 mol

Question 2

Step 1: Given data

  • Moles of NaOH (n): 0.23 mol
  • Molar mass of NaOH (M): 40.00 g/mol

Step 2: Calculate the mass (m) corresponding to 0.23 moles of NaOH

We will use the following expression.

m = n × M

m = 0.23 mol × 40.00 g/mol = 9.20 g

You might be interested in
What do you think the axis of rotation means?
larisa86 [58]

Answer:

it means the earth is rotating-

Explanation:

5 0
3 years ago
A student mixes chemicals A and B together and records the amount of time it takes for a color change to occur. The student repe
k0ka [10]

Answer:

It is mentioned that the student is mixing chemicals A and B and observes the time taken for the color to change. However, in the experiment, it is noticed that the student has repeated the procedure five times and each time he or she is modifying the concentration of chemical B. Thus, it is clear that the concentration of chemical B is the independent variable in the experiment. An independent variable is illustrated as the variable, which is controlled or modified in the experiment.

8 0
3 years ago
URGENT !!!! write a letter to the "city council" PLEASE HELP ILL GIVE THE BRAINIEST AND A BUNCH OF POINT !!What happens to pure
aleksley [76]
Bleach and anytype of cleaner like window cleaner or disinfectant is very dangerous because if you mix those two together it might cause a very deadly fume and can cause lung failure and death within about 5 hours
4 0
3 years ago
Which of the following best describes an ecosystem in a California tide pool?
frosja888 [35]

Answer: i think your answer is<u> The giant green anemones, the ochre sea stars, and the red octopuses</u> because an ecosystem means all the organisms and the physical environment with which they interact. If not then your other option would be <u>A a school of fluffy sculpins.</u>

Hope this helped you!

8 0
2 years ago
Scientists have discovered how to use electricity to power cars. Running cars on electricity could help
Fiesta28 [93]
Running cars on electricity would conserve gasoline because electric cars do not use the same resources.

Hope this helps!
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which difection do most weather systems move in the united states
    12·2 answers
  • What is the symbol of a ion with a 22 protons, 34 neutrons, and 18 electrons
    12·1 answer
  • Why does ocean water near the equator warmer than the ocean water from the equator
    7·1 answer
  • What would happen if you added more than 5ml of H2O2 to the 5ml of yeast
    9·2 answers
  • Identify the spectator ions in this reaction. Check all that apply.
    13·2 answers
  • What force(s)
    11·1 answer
  • Helpp i give brainly-est no links just help please!!
    10·1 answer
  • Compared with the fibers of cotton plants growing today, what is the relative ratio radioactivity in the old material vs the rel
    8·1 answer
  • GUYS I NEED HELP WITH THIS ASSIGNMENT MY LAST ASSIGNMENT FOR THE DAY
    5·1 answer
  • 28. The IUPAC name for OH is
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!