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
Gennadij [26K]
2 years ago
14

How many grams are in 4.5 moles of NaF?

Chemistry
1 answer:
Ilia_Sergeevich [38]2 years ago
6 0

Answer:

3139542g

Explanation:

That's because if you talk about

4.5

moles of sodium fluoride, you would get a really absurd number of grams.

You might be interested in
What is the name of the ionic compound AlBr3?
Aleksandr [31]

Answer: Correct name will be is aluminum bromide

Explanation:

In a molecular formula ,AlBr_3

Aluminium atoms present = 1  

Bromine atoms present = 3

Charge on aluminium is +3 and charge on bromine is -1.

While naming:

  • Name of the cation is written first. Simple name of the element is written
  • After name of cation name of an anions written with suffix 'ide' in the end.

So, the name of AlBr_3 will be aluminium bromide.

7 0
3 years ago
Read 2 more answers
As the elements are considered from left to right in period 4 which is the correct sequencing of the elements?
velikii [3]

https://quizlet.com/17797282/periodicity-review-flash-cards/


i took a test like this and i went to this site /\ /\ /\ and the flash cards have the answers

8 0
3 years ago
Which statement is true about the gravity?
REY [17]

Answer:

B.

Explanation:

Gravity acts on all masses equally, even though the effects on both masses.

Hope it helps you! ^^



8 0
3 years ago
What is the maximum amount of water (in grams) that can be removed from 15ml of toluene by the addition?
Nataly [62]

Complete Question

Magnesium sulfate forms a hydrate with the formula MgSO_4. 7H_20. What is the maximum amount of water (in grams) that can be removed from 15 ml of toluene by the addition of 200 mg of anhydrous magnesium sulfate? The molar mass of MgSO_4 is 120.4 g/mol; H20 = 18 g/mol.

Answer:

The value  is  z =  0.2093 \  g of  H_2O

Explanation:

From the question we are told that

   The volume of toluene is  V = 15 mL

    The mass of  anhydrous magnesium sulfate is  m =  200m g  = 200 *10^{-3} \  g

   The formula of the hydrate is   MgSO_4. 7H_20

    The molar mass of   MgSO_4  is  z =120.4 \ g/mol

From the formula given we see that

  1 mole of  Mg SO_4 wil remove  7 moles of H_2O to for the given formula

Hence

  120.4 g (1 mole) will remove  7 moles (7 * 18 g = 126 g  ) of  H_2O to for the given formula

Therefore 1 g of  Mg SO_4  x g  of  H_2O  

So

     x  =  \frac{x]126 *  1}{ 120.4 }

=>     x  =  1.0465 \  g

From our calculation we obtained that

  1 g of Mg SO_4 will remove  x  =  1.0465 \  g  of  H_2O  

Then  

   200 *10^{-3} \  g of Mg SO_4 will remove z g of  x  =  1.0465 \  g  of  H_2O  

So

   z =  200 *10^{-3} *  1.0465

=>z =  200 *10^{-3} *  1.0465

=>z =  0.2093 \  g of  H_2O  

6 0
3 years ago
What is heat of vaporization?
UNO [17]

Answer:

Your answer is D. It is the heat required to change a gram of substance from a liquid to a gas.

8 0
3 years ago
Other questions:
  • Which is a FALSE statement about elements?
    15·2 answers
  • What happens when you drop iodine on a leaf?
    10·1 answer
  • State of water with high energy that's takes the sale and volume of it's container
    8·1 answer
  • Nitrogen gas consists of _____.
    9·2 answers
  • How much pollution is in urban streams ?
    7·1 answer
  • What main criterion determines major divisions in the geologic time scale?
    11·1 answer
  • I have science and i have a question that says : an element is a (valuable, pure , rare) substance that is not chemically combin
    10·1 answer
  • What is the voltage across the first 10-ohm resistor​
    6·1 answer
  • A hiker climbs a hill. How does the potential energy of the hiker change as she climbs higher?
    14·1 answer
  • Which of these best describes the basis on which new scientific ideas are accepted or rejected?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!