General Chemistry Answers

How long would it take to create 1.2 g of Ni(s) at the cathode with a current of 2.20 A?

WHAT IS THE MOLARITY OF A SOLUTION MADE BY DISSOLVING 2.51GRAMS OF SODIUM CARBONATE IN DISTILLED WATER AND MAKING IT UP TO 100ML WITH DISTILLED WATER IN A VOLUMETRIC FLASK

It is desired to neutralize a solution X that contains a mixture of potassium bromide and hydriodic acid. Titration of 10.1 mL X with 0.110 M silver nitrate required 69.0 mL of the latter. The resulting precipitate, containing a mixture of AgBr and AgI, was dried and found to weigh 1.710 g. How much 0.117 M sodium hydroxide should be used to neutralize 10.1 mL solution X? mL

Write a balanced chemical equation (smallest integer coefficients possible) for the reaction between an acid and a base that leads to the production of Ba(ClO4)2(aq). Be sure to specify states such as (aq) or (s). Give the names of the acid, the base, and the salt.

1.pH meter gives an electrical response proportional to the concentration of hydrogen ion. To convert this

response into pH, glass electrode must be calibrated against standard solution of known H+

concentration.

Which of the following standard solution(s) is/are likely to be used?

a) pH 4.0 buffer b) pH 7.0 buffer c) pH 14.0 buffer and d) All of the above

A.   Determine how much vinegar in gal. is required to react with an iron nail to produce 32.5 g of hydrogen. The density of HC₂H₃O₂ is 1.053 g/ml.

You are a chief designer of a condominium. Make an illustration, the several floors as the main energy levels. Each floor will

have a unit and rooms corresponding to the number of orbitals. Your top floor will be 4f orbital. Be creative. Use a separate sheet

for your illustration.

What is the percentage of hydrogen by mass in ethyne C2H2

What is the mass of the solid NH4Cl formed when 73.0 g of NH3 is mixed with an equal mass of HCl? What is the volume of the gas remaining, measured at 14.0°C and 752 mmHg? What gas is it?

Write the electron configuration of the elements and show the orbital diagram using Hund's Rule and Pauli's Principle.

Elements - B5, N7, Cl17, Ti22 , Ni28

Orbital Diagram: Electron Configuration: