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
BaLLatris [955]
4 years ago
15

How many grams of NaCl are in 0.78 moles of NaCl? *

Chemistry
1 answer:
melomori [17]4 years ago
4 0

The molar mass of NaCl is 23 + 35.5 = 58.5 g/mol, so the mass of the sample ia 0.78 × 58.5 = 45.63 g.

You might be interested in
Question 3 (1 point)
pentagon [3]

Full question:

The IUPAC name for  CH3CH2C≡CCH3 is:

Answer:

2-pentyne

Explanation:

To name hydrocarbons, you first you have to identify the longest carbon chain.  There are 5 carbons in this chain, so we know the name is "pent".

You then have to identify the presence of any double or triple bonds. If double bonds, it is an alkene, if triple bonds, it is an alkyne. In this case there is a triple bond, so we know the hydrocarbon is pentyne.

You then number the chain to give the lowest number to the triple bond. It could either be 4 (countnig carbons from left to right) or 2 (from right to left). Therefore, the answer is 2-pentyne.

5 0
4 years ago
What would happen to the sup- ply of ATP in your cells if you did not eat enough carbohydrates? How would this affect your cells
harina [27]

Answer:

ATP supply will reduced or decrease drastically

Explanation:

ATP will reduced because carbohydrates are energy given food. Chemical energy are in carbohydrates, therefore when the undergo digestion i.e breakdown of larger pieces into smaller pieces, it is broken down into glucose i.e energy is released. Therefore, if there is now carbohydrates, ATP supply will reduced and there won't be energy needed for different cellular metabolic activities. The breakdown of carbohydrate supply energy.

3 0
3 years ago
An aqueous solution is 40.0 % by mass hydrochloric acid, HCl, and has a density of 1.20 g/mL. The mole fraction of hydrochloric
vivado [14]

Answer:

The molar concentration of HCl in the aqueous solution is 0.0131 mol/dm3

Explanation:

To get the molar concentration of a solution we will use the formula:

<em>Molar concentration = mass of HCl/ molar mass of HCl</em>

<em></em>

Mass of HCl in the aqueous solution will be 40% of the total mass of the solution.

We can extract the mass of the solution from its density which is 1.2g/mL

We will further perform our analysis by considering only 1 ml of this aqueous solution.

The mass of the substance present in this solution is 1.2g.

<em>The mass of HCl Present is 40% of 1.2 = 0.48 g.</em>

The molar mass of HCl can be obtained from standard tables or by adding the masses of Hydrogen (1 g) and Chlorine (35.46 g) = 36.46g/mol

Therefore, the molar concentration of HCl in the aqueous solution is 0.48/36.46 = 0.0131 mol/dm3

7 0
3 years ago
Which statement describes both homogeneous mixtures and heterogeneous mixtures?
Mamont248 [21]
I believe the answer is D
4 0
3 years ago
Write the scientific term .<br><br>the metallic oxides which desolve in water (...............)
Pavel [41]
Magnesium oxide is the metallic oxide which dissolve in water
3 0
3 years ago
Other questions:
  • Which of the following pairs are opposing terms? Superior/posterior Superior/inferior Anterior/inferior Superior/anterior
    11·1 answer
  • Suppose the filament in a super-powerful flashlight is heated up to 3600 K. What type of light would be given off by this filame
    13·2 answers
  • What volume will water vapor form when 40 liters of hydrogen completely reacts with 25 liters of oxygen? Assume the temperature
    8·1 answer
  • Hydrogen can be obtained economically as a byproduct in the electrolysis of
    6·1 answer
  • If you want to produce 75,000 bottles of 200 mg vitamin C pills, and there are 100 pills per bottle, how many kg of vitamin C do
    10·1 answer
  • Identify the major ions present in an aqueous lioh solution
    5·2 answers
  • A student wants to examine a substance by altering the bonds within its molecules. Which of the following properties of the subs
    9·1 answer
  • Part A. Two containers, one at 305 K and the other at 295 K, are placed in contact with each other. 1. 1 J of heat flows from th
    14·1 answer
  • Angiosperms produce brightly colored blooms and sweet-smelling flowers. Why have angiosperms developed these adaptations? A. to
    10·1 answer
  • Write a story of your life when you were hurted by someone whom you trusted blindly...​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!