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
Ghella [55]
2 years ago
10

Mercury (Hg) is present in trace amounts in coal, ranging from 50.0 to 200.0 ppb. A typical power plant burns 2.39 million tons

of coal
per year. Calculate tons of mercury in the coal based on the lower (50.0 ppb) and higher (200.0 ppb) concentrations.

Mercury at 50.0 ppb= __ tons Hg
Mercury at 200.0 ppb= __ tons Hg
Chemistry
1 answer:
mariarad [96]2 years ago
3 0

Answer:

uuuu

Explanation:

You might be interested in
While driving your rental car on your trip to Europe, you find that you are getting 9.7 kilometers per liter of gasoline. What d
zloy xaker [14]
<span>While driving your rental car on your trip to Europe, you find that you are getting 9.7 kilometers per liter of gasoline. We know that 1 mile is equal to 1.609 kilometers. So divide 9.7 kilometers by 1.609 kilometrs/mile and you will get 6.03 miles per gasoline</span>
5 0
3 years ago
Read 2 more answers
Which expression is a measurement of density? 20 g/cm 2 5.2 cm 3 0.71 mg 5.13 kg/L
algol [13]

Answer:

5.13 kg/l

Explanation:

brainly.com/question/6123981

3 0
2 years ago
Read 2 more answers
How do you predict a reaction outcome for Ni(s) + H2O(L)?
ElenaW [278]

Answer:

Ni(s) + H₂O(l) -------------> [Ni(H₂O)₆]²⁺

Explanation:

Data Given:

Reactants:

Ni(s) + H₂O(l)

Product = ?

Solution:

Names of the Reactants

Ni = Nickel

H₂O = water

Reaction:

Normally nickel directly does not react with water under normal condition. But indirectly in acidic or neutral condition it form complex ion.

For this it first dissolve slowly in dilute acid, in this reaction it liberate Ni²⁺ ions these nickel ions form light green complex ions in aqueous solution.

              Ni(s) + H₂SO₄(aq) -------> Ni²⁺(aq) + SO₄²⁻(aq) + H₂

This is a type of complex formation in which Nickel react with water and produced a light green color new complex ion or product.

Complete reaction is as under

                  Ni(s) + H₂O(l) -------------> [Ni(H₂O)₆]²⁺

Balance Reaction:

                   Ni(s) + 6 H₂O(l) -------------> [Ni(H₂O)₆]²⁺

So.

by this reaction one product is formed that is [Ni(H₂O)₆]²⁺ named as hexaqua nickel ion

7 0
3 years ago
27. Write balanced equations that describe the following reactions.
Katyanochek1 [597]

#a

  • HClO_4(aq)+H2O(l)—»H3O+(aq)+ClO_4

#b

  • CH3CH2COOH + H2O ==> CH3COO^- +H3O

#c

This is reversible reaction

  • H2O + NH_3 ⇄ OH^- + NH4^+
5 0
2 years ago
A 3.00-l flask is filled with gaseous ammonia, nh3. the gas pressure measured at 15.0 ∘c is 2.15 atm . assuming ideal gas behavi
Leokris [45]
We can find the mass of ammonia using the ideal gas law equation,
PV = nRT
where 
P - pressure - 2.15 atm x 101 325 = 2.18 x 10⁵
V - volume - 3.00 x 10⁻³ m³
n - number of moles 
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature in kelvin - 15.0 °C + 273 = 288 K
substituting these values in the equation 
2.18 x 10⁵ Pa x 3.00 x 10⁻³ m³ = n x 8.314 Jmol⁻¹K⁻¹ x 288 K
n = 0.273 mol 
number of moles of NH₃ is 0.273 mol 
molar mass of NH₃ - 17.0 g/mol 
mass pf ammonia present - 0.273 mol x 17.0 g/mol = 4.64 g
mass of NH₃ present is 4.64 g
8 0
3 years ago
Other questions:
  • What are some physical properties in a water hat?
    13·2 answers
  • Explain the units and how to solve the following metric conversion then solve the metric conversion by filling in the blank 12KM
    6·1 answer
  • I want to know the steps.
    14·1 answer
  • Do you think the reflected waves would ever return to the airplane that transmitted them? explain
    6·2 answers
  • explain why hydrogen chloride does not conduct electricity, but a solution of hydrogen chloride and water conduct electricity
    10·1 answer
  • Bacteria can be heterotrophs or autotrophs<br> true or false?
    10·1 answer
  • How much force in needed to accelerate 66 kg skier at 2 m/sec?
    6·2 answers
  • In a 4th period battle, the girls were able to overcome the in Tug-of-War. Ten boys each pulled with a force of 30 N. Six girls
    11·1 answer
  • How many amino acids can compose a protein molecule?
    14·1 answer
  • discuss how variations in electronegativity result in the unequal sharing of electrons in polar molecules.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!