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
kirill115 [55]
3 years ago
11

2.50 g CuCl2 equals how many moles

Chemistry
2 answers:
Vitek1552 [10]3 years ago
4 0
The molar mass of CuCl2 is 134.45 g/mol; therefore, you divide 2.5 g of CuCl2 by 134.45 g of CuCl2 leaving you with 0.019 moles
Svetlanka [38]3 years ago
3 0

Explanation:

Number of moles is defined as the mass of substance given in grams divided by the molar mass of substance.

It is given that mass of CuCl_{2} is 2.50 g and molar mass of CuCl_{2} is 134.45 g/mol.

Therefore, calculate number of moles as follows.

      Number of moles of CuCl_{2} = \frac{mass}{molar mass}

                                        = \frac{2.50 g}{134.45 g/mol}

                                         = 0.0186 mol

                                         = 0.019 mol (approx)

Thus, we can conclude that 2.50 g CuCl2 equals 0.019 moles (approx).                  

You might be interested in
N₂ + 3H2 → 2NH3
Rainbow [258]

Answer:

187 moles NH₃

Explanation:

To find the amount of ammonia formed, you need to multiply the given value by the mole-to-mole ratio consisting of both relevant molecules. The mole-to-mole ratio is made up of the molecules' coefficients in the balanced equation. The desired unit should be placed in the numerator of the ratio. The final answer should have 3 sig figs to reflect the lowest amount of sig figs among the given values.

1 N₂ + 3 H₂ ----> 2 NH₃
^                         ^

93.5 moles N₂          2 moles NH₃
----------------------  x  -------------------------  =  187 moles NH₃
                                    1 mole N₂

3 0
1 year ago
Read 2 more answers
Write and balance the following equation:
Maru [420]

Answer:

Sulfur reacts with oxygen to form sulfur dioxide. When nonmetals reactwith one another, the product is a molecular compound. Often, the nonmetal reactants can combine in different ratios and produce different products. Sulfur can also combine with oxygen to produce sulfur trioxide.

3 0
3 years ago
A metal sample has a mass of 64.2 g. What is the density of this metal?
brilliants [131]

density= mass/volume

we need the volume of the metal to find the density,  in which case the answer would be 64.2/volume=density

8 0
3 years ago
For each system listed in the first column of the table below, decide (if possible) whether the change described in the second c
cricket20 [7]

Answer:

For each system listed in first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S , or leave S unchanged. If you don?t have enough information to decide, check the not enough information button in the last column

6 0
3 years ago
Why knowing the density of water important?? explain why please so I can understand it don’t copy for the internet I won’t under
Mkey [24]

Answer:

it allows us to determine whether objects will float or sink when placed in a liquid or even a gas.

Explanation:

For example, In an oil spill in the ocean, the oil rises to the top because it is less dense than water, creating an oil slick on the surface of the ocean. A Styrofoam cup is less dense than a ceramic cup, so the Styrofoam cup will float in water and the ceramic cup will sink.

3 0
2 years ago
Other questions:
  • What environmental effect has cotton harvesting had in asia
    8·1 answer
  • The ph of 0.255 m hcn is 4.95. What is the value of ka for hydrocyanic acid?
    13·1 answer
  • I analyze one atom of carbon in a rock and then one atom of carbon from one of my skin cells. Explain the differences I might se
    15·1 answer
  • What chemical is added to natural gas in case of gas leaks?
    11·2 answers
  • 4.5 × 1025 atoms of nickel equal how many moles? A. 27 mol B. 2.7 × 1048 mol C. 0.75 mol D. 75 mol
    11·2 answers
  • Given the chemical equation, predict the ΔS system for this change.
    6·1 answer
  • Are electrons found outside of an atom
    12·1 answer
  • Ammonium carbamate (NH2COONH4) is a salt of carbamic acid that is found in the blood and urine of mammals. At 240°C, Kc = 0.006
    7·1 answer
  • 12.3 moles of sodium is what mass of Na?​
    15·1 answer
  • The density of an object is 7 g/mL and has a volume of 2mL, what is the mass of the object?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!