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
kakasveta [241]
2 years ago
12

1. What is the molarity of a solution which contains 0.256 mol of a substance dissolved in 143 mL of solution.

Chemistry
1 answer:
LenaWriter [7]2 years ago
4 0

Answer:

The equation for molarity is moles/liter for the first question you would do 0.256/0.143 liters to get 1.790 mol/L

Explanation:

The second problem you would do need to find the moles of NaCl which you would do by doing 4.89 g/58.44g/mol= 0.08367 then do 0.08367/0.600= 0.139 mol/L

The third problem would be the same steps as the second one.

The fourth problem would be (0.460M)(5.50L)= 2.53 moles

You might be interested in
Which is a common unbalanced force acting on objects in motion?
Semmy [17]

Answer:

a. friction

Explanation:

What is a common unbalanced force acting in motion? Common forces that are often unbalanced include the force of gravity and applied forces. When these forces are unbalanced, objects accelerate, change their position and find new configurations for which all forces are again balanced.

Friction is a kind of force.

5 0
2 years ago
Read 2 more answers
The new boiling point is 101.02°C. Suppose that you add another 2.0 mol of sucrose to this solution. What do you predict the new
solniwko [45]

Mad Lad, thanks for the answer :)

7 0
2 years ago
Read 2 more answers
There are seven types of crystals. Which of these is not one of the seven?
Gelneren [198K]
The answer is B. tetraclinic
3 0
2 years ago
Read 2 more answers
The atomic number of polassium and
never [62]

Explanation:

Atomic radius decreases from left to right in a period.

Therefore Calcium would have a smaller atomic size.

6 0
2 years ago
Would aluminum be as useful as food wrapping if it had a much lower melting point? Explain your answer.
Salsk061 [2.6K]

The correct answers are as follows:

1. Aluminium will not be useful as food wrapping if it has a much lower melting point.

Aluminum is a metallic element that is malleable and soft, thus, it is easy to beat it into thin sheet, which are used to package food. The thin sheet is called aluminium foil. Aluminum is useful as a food wrapping because it has high temperature and thus, it does not react with food (the hotness of the packaged food is not capable of melting the metal). If the melting point of aluminium is lower, this implies that little temperature, such as the one from hot food will be able to melt aluminum foil, thus allowing the food to be contaminated with the metal.

2. When bleach react with fabric dye chemical change occur in the fabric.

The major element in bleach is chlorine. When laundry bleach is added to a fabric, the chlorine component of the bleach will react with the fabric dye and cause a colour change in the fabric. This type of change is called chemical change, because the original colour of the fabric can not be recovered.

3. Every substance has specific properties, which can be used to identify it. Two of such specific properties are melting point and boiling point. Melting point refers to a specific temperature at which a solid substance will melt while boiling point refers to a specific temperature at which a liquid substance will boil and turn to steam.

Water for instance has a boiling point of 100 degree Celsius. To find out if an unknown substance is water, one can determine the boiling point of such liquid. A boiling point of 100 degree Celsius will strongly signify that the substance is probably water. The same thing applies to melting point. If the specific boiling and melting point of substances are known, then they can be used to identify them.


4 0
3 years ago
Other questions:
  • In 100 grams of sweet peas there are 14.5 carbohydrates,5.7 grams of sugars,5.1 grams of dietary fiber, 5.4 grams of protein and
    14·1 answer
  • Which cells produce photosynthesis
    6·1 answer
  • Convert this molecular formula into a structure that is consistent with the usual bonding patterns. c3h8
    7·1 answer
  • What would be the scenario of negative acceleration
    11·2 answers
  • Type your response in the box.
    7·1 answer
  • Which chemical equation best represents the Law of Conservation of
    9·1 answer
  • Which of the following is an example of a monopole sound source?
    11·1 answer
  • BRAINLIEST!!
    15·1 answer
  • Gold is a natural resource, because it occurs naturally in the environment and humans use it. Gold cannot be made from other sub
    9·2 answers
  • What effect do ocean and wind currents have on land temperatures?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!