How many moles of chromium(iii) nitrate are produced when chromium reacts with 0.85 moles of lead(iv) nitrate to produce chromium(iii) nitrate and lead?

Answers

Answer 1

Answer: The moles of chromium (iii) nitrate produced is calculated as follows

write the equation for reaction

3 Pb(NO3)2 + 2 Cr = 2 Cr(NO3)3 + 3 Pb

by use of mole ratio between Pb(NO3)2 to Cr(NO3)3 which is 3 : 2 the moles of Cr(NO3)3 is therefore
= 0.85 x2 /3 = 0.57 moles

Related Questions

ammonia gas is used as refrigerant 0.474 atm. Pressure is required to change 2000 cm3 sample of ammonia initially at 1.0 atm to 4.22 dm3 at constant temperature. Show this data in boyles law
Which planet's orbit around the sun is most nearly circular?
Give an advantage and disadvantage of nuclear energy
Which element has the electron configuration [Xe] 6s2 4f14 5d10 6p2?
Objects 1 and 2 float as shown in the beaker below. Object 1 barely floats while 2 floats above surface. The density of the liquid in the beaker is 3.2 g/cc. Which of the densities given below are possible values for the densities of the two objects?

What is the best description of the Bohr model of the atom?A.)The atom consists of a positively charged material with negatively charged electrons embedded within it.
B.)The atom consists of a nucleus with electrons orbiting randomly around it.
C.)The atom consists of a nucleus with electrons orbiting at specific energy levels. Absorbed photons cause electrons to jump between energy levels.
D.)The atom consists of a nucleus surrounded by a region containing electrons. Electrons cannot be located exactly within this region, but the probability that they will be found in an area can be stated.

Answers

The best description of the Bohr model of the atom is that the atom consists of a nucleus with electrons orbiting at specific energy levels. Absorbed photons cause electrons to jump between energy levels. The answer is letter C.

What would be the mass of Iron(II) chloride obtained when 450g of Sodium Chloride is added to Iron(II) oxide?

Answers

Answer:

FeO(s)+2NaCL(aq)>FeCL2(aq)+Na2O(s)

2 moles of sodium chloride react with 1 mole of iron (II) oxide to give 1 mole of iron (II) chlorine

mole ratio NaCl :FeCl=2:1

mass of FeCl=0.5×450=225g

Explanation:

(

Which of the answer choices accurately describes a trend that occurs when moving left to right across periods?(Select all that apply.)

reactivity increases
atomic radius increases
atomic mass increases
valence electrons decrease

Answers

atomic radius is the correct answer

How many moles of water will be generated during the combustion of 0.38 moles of methyl alcohol (CH3OH)? 2CH3OH + 3O2 2CO2 + 4H2O

Answers

You already got the balanced equation. So the ratio of mole number is the ratio of the coefficient. Then the ratio of methyl alcohol and water is 2:4=1:2. The water generated is 0.38*2=0.76 mol.

Answer:

0.76 moles

Explanation:

Which event must always occur for a chemical reaction to take place?(1) formation of a precipitate(2) formation of a gas(3) effective collisions between reacting particles(4) addition of a catalyst to the reaction system

Answers

3 - Effective collisions between reacting particles

For a chemical reaction to occur, reacting particles must collide - however, not all collisions result in a reaction. They must have enough energy in the collision to react (that is, be above the activation energy). The rate of reaction is determined by the rate of successful collisions, that is to say, the more successful collisions there are in a unit time, the faster the reaction rate.

(3) effective collisions between reacting particles is your answer. Without these collisions, the reacting particles cannot trade particles or react with each other to create a chemical reaction.

Which of the following compounds is a gas at room temperature? A : CH3CH2OH B : CH3CH2CH2CH2CH2CH2CH3 C : CH3CH2CH3 D : HOCH2CH2OH

Answers

Answer:

C. $CH_3CH_2CH_3$

Explanation:

Molecules with the stronger intermolecular forces are pulled tightly together to form solid at higher temperatures and that's why the freezing point is higher.

Also, molecules with the stronger intermolecular force have greater interaction between the molecules and thus on heating do not boil easily and have high boiling point also.

Thus, melting point and boiling point increases with increase in number of carbon atoms and also increase in intermolecular forces (like hydrogen bonding, if present).

Thus, the compound which is gas at room temperature is $CH_3CH_2CH_3$ because it has least number of carbon atoms and absence of hydrogen bonding.

Final answer:

Among the choices, only CH3CH2CH3 (propane) is a gas at room temperature. The other compounds, CH3CH2OH (ethanol), CH3CH2CH2CH2CH2CH2CH3 (hexane), and HOCH2CH2OH (ethylene glycol) are all liquids.

Explanation:

Among the four compounds given, compound C, which is CH3CH2CH3 (also known as propane), is a gas at room temperature. Compound A (CH3CH2OH, or ethanol), compound B (CH3CH2CH2CH2CH2CH2CH3, or hexane), and compound D (HOCH2CH2OH, or ethylene glycol) are all liquids at room temperature.

The state of a compound at room temperature depends on factors like molecular mass and intermolecular forces. Propane has a smaller molecular mass and weaker intermolecular forces than the others, making it a gas at room temperature.

Learn more about States of Compounds here:

brainly.com/question/33057290

#SPJ6

Other Questions

Hydrogen, when combined with oxygen in a chemical reaction, forms water. This is an example of which type of chemical reaction? I think its single displacement but I am not sure.

What is kinetic energy? A. the energy an object has due to its motion B. the energy derived from chemical reactions C. the energy an object has due to its position D. the energy an object releases as heat

chlorine has 7 outer energy level electrons and argon has 8. what is the difference in the reactivity of these two elements?

A vineyard has 145 acres of Chardonnay grapes. A particular soil supplement requires 5.50 g for every square meter of vineyard. How many kilograms of the soil supplement are required for the entire vineyard? (Recall that 1 km2 = 247 acres.) Express your answer in kilograms to three significant figures.