+1-415-315-9853

info@mywordsolution.com

 Algebra Math Calculus Physics Chemistry Biology Earth Science Physiology History Humanities English Sociology Nursing Science

Find the concentration and pH solution.

1.What is the concentration of Cu2+ in a solution that is 0.10 M Cu(NH3)42+? (Kf = 1.2 x 1012)
A.8.5 x 10-5
B.2.8 x 10-4
C.8.0 x 10-4
D.5.1 x 10-4
E.3.8 x 10-4

2.What is the concentration of Ni2+ in a solution that is 1.0 M Ni(NH3)62+? (Kf = 1.8 x 108)
A.7.2 x 10-4
B.2.1 x 10-4
C.1.4 x 10-2
D.3.2 x 10-4
E.5.8 x 10-4

3. What is the pH of a solution of 0.65 M acid and 0.51 M of its conjugate base if the pKa = 5.30?
A.5.19
B.6.05
C.5.62
D.5.85
E.5.41

• Category:- Chemistry
• Reference No.:- M919042

Have any Question?

## Related Questions in Chemistry

### One method to produce nitrogen in the lab is to react

One method to produce nitrogen in the lab is to react ammonia with copper (II) oxide: NH3(g) + CuO(s) Cu(s) + H2O(l) + N2(g). After using 40.0 grams of NH3, 15.5 grams of N2are produced. What is the percent yield of nitr ...

### A 200 g sample of water with a temperature of 32c is added

A 200 g sample of water with a temperature of 32?C is added to 50 g water at 55?Cin an insulated container. What is the final temperature after thermal equilibrium is reached? The specific heat of water in the liquid sta ...

### Imagine you are performing a calorimetry experiment using a

Imagine you are performing a calorimetry experiment using a constant-pressure calorimeter. First, you calibrate the calorimeter using the reaction of KOH with HCl (enthalpy = -56.2 kJ/mol). Then, you use the calorimeter ...

### 1 what is the mass of 38 molecules of so3nbspin g2 what

1) What is the mass of 38 molecules of SO 3  in g? 2) What volume in L of chlorine at 30 o C and 743 torr is required to react completely with 4.76 g aluminum: 2Al(s) + 3Cl 2 (g) → 2AlCl 3 (s) Calculate the moles chlorin ...

### Explain the geochemical differences between acidic mine

Explain the geochemical differences between acidic mine waters and basic mine waters.

### 1a rolaids tablet has 550 mg of calcium carbonate and 110

1. A Rolaids tablet has 550 mg of calcium carbonate and 110 mg of magnesium hydroxide. a) Write the two neutralization reactions with stomach acid (assume HCl, don't combine reactions) b) If the acid concentration is 4.0 ...

### Crbonic acid h2co3 is a diprotic acid withka1

Carbonic acid (H2CO3) is a diprotic acid withKa1 = 4.2×10-7and Ka2 = 4.8×10-11. Theion product for water is Kw = 1.0 × 10-14. What is the carbonate ion concentration[CO2-3] in a 0.037 M carbonic acid solution?

### Identify the atoms that are oxidized and reduced the change

Identify the atoms that are oxidized and reduced, the change in oxidation state for each, and the oxidizing and reducing agents in each of the following equations: a) Mg(s) + NiCl2(aq) ? MgCl2(aq) + Ni(s) b) PCl3(l) + Cl ...

### The following reaction takes place at a certain elevated

The following reaction takes place at a certain elevated temperature: Fe 2 O 3 (s) + 3CO(g) → 2Fe(l) + 3CO 2 (s) What is the percent yield of iron if 50.1 g Fe 2 O 3 in excess CO produces 19.5 g Fe? The M.W. of Fe 2 O 3 ...

### A 425-m315000 ft3 basin equipped with 10 gas dispersers of

A 425-m 3 (15,000 ft 3 ) basin, equipped with 10 gas dispersers of a new design, is to be installed for stripping hydrogen sulfide, H 2 S, from wastewater. The dispensers, each to use air at a rate of 7:08 × 10 -3  m 3 / ...

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

### Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen