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
Semmy [17]
3 years ago
6

Given the following equation: Cu + 2 AgNO3 ---> Cu(NO3)2 + 2 Ag If 89.5 grams of Ag were produced, how many grams of Cu react

ed?
Chemistry
1 answer:
postnew [5]3 years ago
3 0

Answer:

mass of Cu = 26,34615g

Explanation:

The equation for reaction is

Cu + 2 AgNO3 ---> Cu(NO3)2 + 2 Ag

1mol       2mol            1mol           2mol

mass of Ag that reacted = 89.5g

molar mass of Ag =107.86h/mol

number of moles = mass/molar mass

number of moles of Ag = 89.5/107.86

                    =0.8298moles

from the stoichoimetric relation;

1mol of Cu reacted to produce 2moles of Ag;

hence 0.8298moles of Ag produce would require;  0.8298/2 moles of Cu to react

            =0.4149moles of Cu

mass of Cu = moles of Cu * molar mass of Cu

molar mass(Cu) = 63.5g

mass of Cu = 0.4149 * 63.5

mass of Cu = 26,34615g

You might be interested in
Which of the following describes a reference point?
Vitek1552 [10]

Answer:

A

Explanation:

i think the answer is A

5 0
3 years ago
Answer the following question for this equation: 2H2 + O2 → 2H2O
kondaur [170]

Answer:

B. 1:2

Explanation:

Molar ratio depicts the relationship between the number of moles of two substances. The chemical equation in this question is as follows:

2H2 + O2 → 2H2O

This question is asking to identify the molar ratio of O2 to H2O in the equation. Since 1 mole of oxygen gas (O2) produces 2 moles of water (H2O). Hence, the O2 to H2O molar ratio is 1:2.

6 0
2 years ago
Bromine can be classified as a
sergiy2304 [10]

Answer:

Halogen / salt-former

Explanation:

Bromine is classified as an element in the 'Halogens' section which can be located in group 7 of the Periodic Table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts".

8 0
3 years ago
1.
GarryVolchara [31]

Answer:

The value of the Golden Igloo is $227.4 million.

Explanation:

First, we need to find the inner and the outer volume of the half-spherical shell:

V_{i} = \frac{1}{2}*\frac{4}{3}\pi r_{i}^{3}

V_{o} = \frac{1}{2}*\frac{4}{3}\pi r_{o}^{3}

The total volume is given by:

V_{T} = V_{o} - V_{i}

Where:

V_{i}: is the inner volume

r_{i}: is the inner radius = 1.25/2 = 0.625 m

V_{o}: is the outer volume

r_{o}: is the outer radius = 1.45/2 = 0.725 m

Then, the total volume of the Igloo is:

V_{T} = \frac{2}{3}\pi r_{o}^{3} - \frac{2}{3}\pi r_{i}^{3} = \frac{2}{3}\pi [(0.725 m)^{3} - (0.625 m)^{3}] = 0.29 m^{3}

Now, by using the density we can find the mass of the Igloo:

m = 19.3 \frac{g}{cm^{3}}*0.29 m^{3}*\frac{(100 cm)^{3}}{1 m^{3}} = 5.60 \cdot 10^{6} g

Finally, the value (V) of the antiquity is:

V = \frac{\$ 1263}{oz}*5.60 \cdot 10^{6} g*\frac{1 oz}{31.1034768 g} = \$ 227.4 \cdot 10^{6}  

Therefore, the value of the Golden Igloo is $227.4 million.

I hope it helps you!  

8 0
2 years ago
Which equation is set up correctly to determine the volume of a 3.2 mole sample of oxygen gas at 50°C and 101.325 kPa?
77julia77 [94]
N = 3.2 moles, T = 50 + 273 = 323 K, P = 101.325 kPa,  R = 8.314 L.kPa/K.mol 

PV = nRT

V = nRT / P           substituting.

V = (3.2 mole)(8.314 L.kPa/K.mol )(323 K) / (<span>101.325 kPa)

That is the answer, but it is not among the options you provided. Check your options properly.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Two types of reactions occur when baking soda and vinegar combine. The first is a double replacement reaction. Write a balanced
    13·2 answers
  • The larger the molecules of a substance, the the London forces between them. A larger molecule has more electrons and a greater
    8·1 answer
  • given a density of 350 grams/cm3 and a mass of 25 grams. What is the volume using the equation involving density?​
    14·1 answer
  • What is the mass ethyl alcohol that fill 200.0 ml
    14·1 answer
  • What is unique about the moons that orbit Jupiter? (select all that apply)
    11·2 answers
  • Explain why there would be many more plants in an ecosystem than ape-x consumers. I NEED THIS PLS
    12·2 answers
  • Explain why “advancing water contact angles are more sensitive to the hydrophobic property of a surface whereas receding water c
    7·1 answer
  • I need another help pls
    15·2 answers
  • Can The collision of continental plates can push up a mountain range, after which weathering and erosion begins?
    7·1 answer
  • 73 m is equal to how many dm?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!