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
s344n2d4d5 [400]
1 year ago
12

Calculate the percentage by mass of nitrogen in magnesium nitrate. You will need the information below. Give your answer to the

nearest whole percentage (e.g. 34%).

Chemistry
1 answer:
lianna [129]1 year ago
7 0

From the calculations, the percentage by mass of the nitrogen is 18.9 %..

<h3>What is the percentage by mass?</h3>

The term percentage by mass refers to the mass of an atom that is contained in a compound.

Hence, the compound magnesium nitrate has the formula Mg(NO3)2. The molar mass of the compound is 24 + 2(14 + 3(16)) = 148 g/mol.

The percentage by mass of nitrogen is; 28/ 148  * 100/1 = 18.9 %.

Learn more about percentage by mass:brainly.com/question/16885872

#SPJ1

You might be interested in
Oxygen gas is collected over water. The total pressure (the O2 pressure the water vapor pressure) is 736 torr. The temperature o
tigry1 [53]

Answer:

The value of the partial pressure of the oxygen  P_{O_{2} } =  690 torr

Explanation:

Total pressure of the mixture of gases = 736 torr

The partial pressure of water vapor = 46 torr

From the law of pressure we know that

Total pressure = The partial pressure of water vapor + The partial pressure of oxygen O_{2}

Put the values of pressures in above equation we get,

⇒ 736 = 46 + P_{O_{2} }

⇒ P_{O_{2} } = 736 - 46

⇒ P_{O_{2} } =  690 torr

This is the value of the partial pressure of the oxygen.

3 0
3 years ago
I HAVE ANSWER
Agata [3.3K]
<span>11.2G is the answer to this problem.
</span>
7 0
3 years ago
Read 2 more answers
2. Which of the following is NOT a function of the saliva?
WITCHER [35]

Explanation:

c . produces bile is not the function of slaiva

6 0
2 years ago
Read 2 more answers
Use the following equation to answer the questions below.
sertanlavr [38]

Answer:

Explanation:

Here is ur answer what you wanna do first is calculate the first and second numbers and letters this should be ur answer = -394 + 2 x (-242) - (-75) + 2 x 0 = -803 kJ/mol

4 0
2 years ago
What are some examples of homogeneous mixtures
Ivanshal [37]

Answer:

Milk

Glue

Pudding

Paper

Plastic

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • How do particles move when they are changing phases?
    8·1 answer
  • Adding a neutron to an atom changes what property of the atom?
    8·2 answers
  • In atoms, electrons surround the nucleus in
    13·1 answer
  • When heated a sample consisting of only CaCO3 and MgCO3 yields a mixture of CaO and Mgo. If the weight of the combined oxides is
    11·1 answer
  • How many atoms are in FeS₂?
    9·1 answer
  • Balance the equation
    13·1 answer
  • The Groups 1 and 2 on the periodic table contain what atom type?
    14·2 answers
  • a gas has a volume of 55mL and a pressure of 130 atm. what is the pressure of the gas if the volume changes to 100ml?
    15·2 answers
  • 1 Srcl (aq) + 1 H,60,(aq) → 2 HCl(aq) + 1 Srso (s)
    9·1 answer
  • If the concentration of products is increased the equilibrium is shifted from * left to right/ to the left/ right to left /down
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!