How many moles of silver chloride are produced from 15.0 mol of silver nitrate

Answers

Answer 1

Answer:

Answer: 15.0

Explanation:

1) The chemical formula of silver nitrate is AgNO₃

2) The chemical formula of silver chloride is AgCl

3) Therefore, by mass balance you know that all the atoms of Ag in AgNO₃ will en up at the AgCl. This is a mole ratio 1:1.

4) Since, there are 15.0 moles of Ag atoms in 15.0 moles of AgNO₃, you conclude, using the 1: 1 ratio, that 15.0 moles of AgCl are produced.

Answer 2

Answer: Silver chloride is AgCl, while silver nitrate is AgNO3. There is the same amount of AgNO3, so the silver from a sample of silver nitrate can produce the same amount of silver chloride. Therefore, this produces 15.0 moles of silver chloride.

Related Questions

Consider the following reaction: 2Mg(s)+O2(g)-->2MgO(s) delta H=-1204kJa) Is this reaction exothermic or endothermic? exothermic endothermicb) Calculate the amount of heat transferred when 3.55 g of Mg(s) reacts at constant pressure. delta H = -87.9 kJc) How many grams of MgO are produced during an enthalpy change of -238 kJ ? m = ?gd) How many kilojoules of heat are absorbed when 40.5 g of MgO(s) is decomposed into Mg(s) and O2(g) at constant pressure? delta H =? kJ
In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g/mol). Calculate the number of moles of chlorine present in 140 g of chlorine gas. Express the quantity in moles to three significant figures.
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Who discovered the nucleus by bombarding gold foil with positively charged particles and noting that some particales were widely deflected?

Answers

Rutherford !

The so-called Rutherford experience consisted mainly of launch, against a gold plate, with a beam of particles emitted by a radioactive source. These particles whose electric charge is positive are known as alpha particles.

hope this helps!

Which professional is most likely to suffer damage from lead contamination?A. doctor
B. farmer
C. painter
D. carpenter

Answers

its c because lead comes from paint The use of lead-based paints for homes, children's toys and household furniture has been banned in the United States since 1978. But lead-based paint is still on walls and woodwork in many older homes and apartments. Most lead poisoning in children results from eating lead-based paint chips. hope this helps

Farmer because a farmer needs the soil to grow his crops and if a power plant leaks he will have no more crops

A charged particle made up of several non-metallic atoms joined together is a(n) Select one: a. covalent ion
b. polyatomic ion
c. multivalent ion
d. electron ion

Answers

Answer:

The correct answer is option b, that is, polyatomic ion.

Explanation:

A molecular ion also called polyatomic ion refers to a charged chemical species comprising two or more atoms bonded covalently with each other. The polyatomic ions comprise two or more non-metallic atoms. An example of a polyatomic ion is an ion of nitrate that comprises one atom of nitrogen and three atoms of oxygen. As the atoms in a polyatomic ion are bonded covalently, they are considered to possess a single charged unit.

It would be B. A polyatomic ion. Poly means many, while atomic refers to atoms more specifically the nature or category of these atoms is that they are non metallic ones, or basically nonmetal atoms. All of these nonmetallic atoms are joined together through covalent bonds and altogether they possess a unique charge. An example of a polyatomic ion would be sulphate or (SO4)^-3.

What quantity of magnesium (in grams) is needed to supply the energy required to warm 30 mL of water (density = 1.00 g/mL) from 22°C to 90°C?

Answers

Answer:

0.22 grams of magnesium

This seems too low, so check the calculations/

Explanation:

How is the heat delivered? Is the magnesium hot and added to the water? If so, at what temperature.

Is the heat generated from an exothermic chemical reaction?

=================

I'll assume here that the heat comes from the reaction of magnesium with water. The balanced equation is:

Mg + 2H2O = Mg(OH)2 + H2

It has a heat of reaction of −924.7 kJ/mol.

We need enough Mg to heat 30 ml of water from 22°C to 90°C. The specific heat of water is needed. It is 4.184 J/g-K. It tells us that 4.184 Joules are needed to raise the temperature of water by 1 degree K.

30 ml of water with density 1 gram/ml means we have 30 grams of water. (We'll ignore the water that is added from the chemical reaction.).

Lets calculate the Joules required to raise 30 grams of water from 22°C to 90°C. Note that the specific heat has units of g and Kelvin. Since we need a temperature change, the number value for ΔT is the same for both °C and °K. So the temperature change is +68°K.

We can now calculate the Joules required:

(30 grams H2O)*(4.184 J/g-K)*(+68°K) = 8535.4 Joules or 8.5 kJ to 2 sig figs.

The Mg/H2O heat of reaction of −924.7 kJ/mol. will allow us to calculate the amount of Mg needed to supply 8.5 kJ. The minus sign tells us that the reaction RELEASES energy (the energy leaves the "system" of Mg and H2O).

Calculate the moles of Mg needed to release 8.5 kJ:

(924.7 kJ/mole)*(x moles) = 8.5 kJ

x moles = 0.0092 moles

Whoa. That is only (0.0092 moles)*(24.03 g/mole) = 0.22 grams of magnesium

This seems low to me, so check on the heat of reaction figure I used. And don't let the hydrogen get away.

Calculate the pH of a 0.30 M NaF solution. The Ka value for HF is 7.2*10^-4

Answers

This problem uses the relationship between Kb and the the dissociation constants which is expressed as Kw = KaKb. Calculations are as follows:

Kb = KaKb
1.00 x 10^-14 = 7.2 x 10^-4(x)
x = 1.39 x 10^-11

We now need to calculate the [OH¯] using the Kb expression:

1.39 x 10^-11 = x^2 / (0.30 - x)

The denominator can be neglected. Thus, x is 3.73 x 10^-6.

pOH = -log 3.73 x 10^-6 = 5.43
pH = 14-5.43 = 8.57

Answer:

pH=8.32

Explanation:

The relevant equilibrium for this problem is

F⁻ + H₂O ↔ HF + OH⁻

With a constant Kb of

Kb= $([HF][OH^(-)])/([F^(-)])$

Kb= $(x*x)/(0.30-x)$

To calculate the value of Kb we use the formula Kw=Ka*Kb, where Kw is the ionization constant of water, 1 * 10⁻¹⁴.

1 * 10⁻¹⁴ = 7.2*10⁻⁴ * Kb

Kb = 1.4 * 10⁻¹¹

So now we have

1.4 * 10⁻¹¹= $(x*x)/(0.30-x)$

We make the assumption that x<<<0.30 M, so we can rewrite the equation of Kb as:

1.4 * 10⁻¹¹= $(x*x)/(0.30)$

$4.2*10^(-12)=x^(2) \nx=2.05*10^(-6)$

So [OH⁻]=2.05*10⁻⁶

pOH=5.68

pH = 14 - pOH

pH=8.32

How does a Geiger counter measure radiation levels

Answers

The Geiger counter measure radiation through the means of detecting alpha particles, beta particles and gamma rays. It uses an ionization effect produced by the Geiger-Muller tube as well. This is the most prominent tool used for radiation measurement.

Answer:

D- Radiation knocks electrons out of gas atoms, which allows the gas to conduct an electric current.

Explanation:

Edge 2021

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