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
SpyIntel [72]
3 years ago
10

Calculate the relative molecular mass of Zn (NO3)2

Chemistry
2 answers:
Sphinxa [80]3 years ago
8 0

Answer:

Okyu

Explanation:

Mass of Zn = 65

(NO3)2 = 124

65 + (14 + 16 \times 2) \times 2 \\ 65 + 124 \\  = 184g mol

aleksley [76]3 years ago
8 0

Explanation:

Mass of Zn = 65

(NO3)2 = 124

\begin{gathered}65 + (14 + 16 \times 2) \times 2 \\ 65 + 124 \\ = 184g mol\end{gathered}

65+(14+16×2)×2

65+124

=184gmol

You might be interested in
2. Write a balanced chemical equation from the following descriptions.
Kitty [74]

Answer:

AgNO3 + NaCl ---> AgCl + NaNO3

4 0
4 years ago
When substances react chemically to create a new substance, will that new substance have the same physical and chemical properti
skad [1K]

Answer:

No it will not have the same chemical properties as the initial substance.

Explanation:

In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants

4 0
3 years ago
10 ejemplos de disoluciones identificando el soluto y el solvente y el tipo de disolucion que corresponde
Keith_Richards [23]

Answer:

hije51k 5jk45679349fjvokhffgpv9ü

4 0
3 years ago
The hydrogen gas produced is collected over water at 25.0 oC. The volume of the gas is 7.80 L, and the total pressure in the gas
Eva8 [605]

Answer:

20.4 grams Zn

Explanation:

To find the mass, you first need to find the moles. This can be found using the Ideal Gas Law equation:

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas Constant (0.08206 atm*L/mol*K)

-----> T = temperature (K)

Before you can plug the values into the equation, you need to convert Celsius to Kelvin.

P = 0.980 atm                   R = 0.08206 atm*L/mol*K

V = 7.80 L                          T = 25.0 °C + 273.15 = 298.15 K

n = ? moles

PV = nRT

(0.980 atm)(7.80 L) = n(0.08206 atm*L/mol*K)(298.15 K)

7.644 = n(24.466)

0.312 moles = n

Now that you have the number of moles, you can convert it to grams using the atomic mass of zinc. The final answer should have 3 sig figs to match the sig figs in the given values.

Atomic Mass (Zn): 65.380 g/mol

0.312 moles Zn           65.380 grams
-------------------------  x  -------------------------  =  20.4 grams Zn
                                         1 mole

5 0
1 year ago
What is electron configuration of oxygen in its excited state​
timofeeve [1]

Answer:

1 {s}^{2} 2 {s}^{2} 2 {p}^{4}

OR

2 : 6

3 0
3 years ago
Read 2 more answers
Other questions:
  • Anouk does 150 J of work using a hammer to pull a nail out of a piece of wood, and the hammer does 105 J of work on the nail. Wh
    10·2 answers
  • If the complete conversion of 1.383g of XI2 results in the formation of 0.564g of XCl2,what is the atomic mass of the element X
    9·1 answer
  • What is the boiling point of a solution that contains 3 moles of KBr in 2000 g of water? (Kb = 0.512 C/m)
    6·1 answer
  • Which of the following reactions Shows a chemical change producing a gas? APEX
    14·2 answers
  • Which of the following measurements is expressed to three significant figures?
    15·2 answers
  • Calculate ΔH∘f (in kilojoules per mole) for benzene, C6H6, from the following data: 2C6H6(l) + 15O2(g)→12CO2(g)+6H2O(l) ΔH∘=−653
    10·1 answer
  • T(K) means the temperature in the unit Kelvin. T(C) means the temperature in Celsius. If T(K) = T(C) + 273, and the current temp
    12·1 answer
  • Calculate the molar solubility of Cd(OH)2 when buffered at a pH = 12.30. The Ksp for Cd(OH)2 is 2.5 x 10-14. Calculate the molar
    10·1 answer
  • Which two properties apply to most elements that conducts heat: malleable, brittle, highly combustible, has free electrons
    8·1 answer
  • What type of chemical bond holds the sulphur and fluorine atoms together in sulphur hexafluoride molecules?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!