2KI + Pb(NO3)2 → 2KNO3 + PbI2 Determine how many grams of KI are required to produce 1.2g of PbI2.

Answers

Answer 1
Answer: Molar mass KI = 166.0028 g/mol   and Pbl₂ = 461.0089 g/mol

2 Kl + Pb(NO₃)₂ ------> 2 KNO₃ + Pbl₂

2 x 166.0028 g ---------> 461.0089 g
           ? g KI -------------> 1.2 g

Mass KI = 1.2 x 2 x 166.0028 / 461.0089

Mass KI = 398.40672 / 461.0089

Mass KI = 0.86 g

hope this helps!



Related Questions

When rocks break down because of chemical reactions it is called
Count the total number of atoms in sio2:
Which sample is a homogeneous mixture?A) NaCI(s) B) NaCl(aq)C) NaCl(g)D) NaCl(ℓ)
What is the chemical name of the compound Cu2CO3?
The amount of carbon in the atmosphere is about _____ of the total amount of carbon on Earth.a. 0.01% b. 0.1% c. 1% d. 10%

What is a chemical bond? A. The attraction of two atoms that holds the atoms together
B. A substance that's composed of atoms
C. A representation of chemical properties
D. The force that holds together the elements in a compound

Answers

A., I believe. It's either an ionic, covalent, or hydrogen bond

Chemical bond is the attraction of two atoms that holds the atoms together.

The freezing point of bromine is
(1) 539°C (3) 7°C(2) –539°C (4) –7°C

Answers

The freezing point of bromine is –7°C. Therefore, the correct option is option D among all the given options.

What is bromine?

Bromine (Br) is a chemical substance, a deep red toxic liquid, and a member of Group 17 (Group VII) of both the periodic chart. At room temperature, free bromine seems to be a reddish brown fluid with such a significant vapour pressure.

Bromine vapour has an amber color. Bromine has a strong odor and can irritate the skin, eyes, especially respiratory system. Even brief exposure to intense bromine vapour can be lethal. The freezing point of bromine is –7°C.

Therefore, the correct option is option D.

To learn more about bromine, here:

brainly.com/question/1952132

#SPJ2

The freezing point of bromine is (4) -7 degrees Celsius.
Hope this helps~

What is a substance made of identical atoms called?

Answers

The answer is Element
It is called an element.

What term is being defined below? the total amount of greenhouse gases produced by individuals or other entities in a given time perioda. global warming
b. ozone depletion
c. carbon footprint
d. reef destruction

Answers

The correct answer is C. Carbon footprint is the total amount of greenhouse gases produced by individuals or other entities in a given period of time. It is usually expressed in equivalent tons of carbon dioxide. Greenhouse gases can be emitted through transport, production and consumption of food, fuel, etc.

A pH of 2 indicates a(n) _____.

Answers

A pH of 2 indicates a acid

A compound is formed when 171.2 g of carbon reacts with 28.8 g of hydrogen. What is the mass percent of hydrogen in the compound

Answers

Following the law of conservation of mass, the mass percent of hydrogen in the resulting compound is 14.4%(wt/wt). This is assuming that all of the carbon reacts with all of the hydrogen. The solution is as follows:

mass % = mass hydrogen*100/total mass = 28.8*100/(28.8+171.2) = 14.4%

Answer:

For Edmentum/Plato users, the correct answer is A. 14.4%