Recent questions in Chemistry

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A solution of 8.00 M formic acid (HCHO2) is 0.47% ionized in water. Calculate the Ka value for formic acid.

Grendizer asked Dec 11, 2024

by Grendizer

8.2k points

1 answer

1 vote

29.7k views

The rate constant at 325 °C for the decomposition reaction C4H8⟶2C2H4is 6.1×10−8s−1, and the activation energy is 261 kJ per mole of C4H8. Determine the frequency factor for the reaction. a) 2.50×10 12s−1

Sinsuren asked Dec 11, 2024

by Sinsuren

9.1k points

2 answers

4 votes

235k views

Using the quantity of CO₂ produced in part d and the kilometer distance traveled from part b, calculate the grams of CO₂ generated by my Prius for every kilometer that I drive it?

KJF asked Dec 11, 2024

by KJF

9.1k points

1 answer

5 votes

66.9k views

The oxidation of NH4+ to NO3– in acid solution (pH = 5.600) is described by the following equation: NH+4(aq)+2O2(g)=NO−3(aq)+2H+(aq)+H2O(l) The overall reaction for the oxidation has an E°cell = –0.

Nicolas De Loof asked Dec 11, 2024

by Nicolas De Loof

7.8k points

2 answers

3 votes

22.3k views

Why are bonding theories important? a) To study weather patterns b) To understand atomic structure c) To predict chemical properties and behaviors d) To analyze historical events in science

Jobrad asked Dec 11, 2024

by Jobrad

7.6k points

1 answer

0 votes

115k views

Water can be decomposed into hydrogen gas and oxygen gas by a process called elecrolysis. If 64.0 grams of water decomposes and 7.2 g or hydrogen gas forms, how many grams of oxygen gas forms?

Serguzest asked Dec 11, 2024

by Serguzest

8.2k points

1 answer

5 votes

137k views

In the second period of the periodic table, it is possible to exceed 8 electrons in the valence shell, but an atom may not have less than 8. a. True b. False

Apires asked Dec 11, 2024

by Apires

8.5k points

2 answers

3 votes

118k views

What are the implications of gi

Mauro Rocco asked Dec 11, 2024

by Mauro Rocco

7.5k points

1 answer

5 votes

112k views

Given that this substance has a mass of 133 g and a volume of 0.457 L, please convert the volume to milliliters (mL) and then calculate its density.

Ashane Alvis asked Dec 11, 2024

by Ashane Alvis

8.1k points

1 answer

3 votes

70.1k views

A certain amount of charcoal (12C) was burnt to produce CO2. Unfortunately, 10% of the carbon was converted to CO which was unexpected. Find the average molecular weight of the exit gas stream if the required

Mehran Mastcheshmi asked Dec 11, 2024

by Mehran Mastcheshmi

8.3k points

1 answer

5 votes

5.5k views

Which is an example of a homogeneous mixture? A. Saltwater B. Muddy water C. Chocolate chip cookies D. Pure gold

GordonBGood asked Dec 11, 2024

by GordonBGood

7.6k points

2 answers

0 votes

171k views

Write Balance the half-reaction for reduction: 5Cl₂+2Mn₂⁺ + 16OH⁻→10Cl−+2MnO₄−+8H₂O

Eduardo Freitas asked Dec 11, 2024

by Eduardo Freitas

7.4k points

1 answer

5 votes

113k views

WHAT IS THE OXIDATION NUMBER OF SULFUR IN THE S2O8 ION?

Praveesh asked Dec 11, 2024

by Praveesh

8.0k points

1 answer

4 votes

173k views

4. With good reasons state why hydrogen is not a member of any of the groups of the Periodic Table.

Torek asked Dec 11, 2024

by Torek

8.4k points

1 answer

5 votes

15.5k views

I am looking to calculate the percentage acidity of different drinks for the purposes of devising cocktail recipes. According to Liquid Intelligence by David Arnold, the optimum acidity level is 0.7-0.

Vikrant Rana asked Dec 11, 2024

by Vikrant Rana

8.8k points

1 answer

5 votes

204k views

Which quantum number is primarily associated with the screening (shielding) effect of electrons in an atom? a) Principal quantum number (n) b) Angular momentum quantum number (l) c) Magnetic quantum number

Patel Dhaval R asked Dec 11, 2024

by Patel Dhaval R

8.4k points

1 answer

0 votes

52.9k views

Given the following information: 8.81 g Carbon 91.2 g Chlorine Molar Mass: 1362.5 g/mol Find the empirical formula and the molecular formula. A. Empirical formula: CCl3, Molecular formula: C6Cl18 B. Empirical

Colas asked Dec 11, 2024

by Colas

8.1k points

1 answer

2 votes

50.9k views

What is the cost of 1000 ml of glycerin, specific gravity 1.25, bought at $54.25 per pound? a) $12.38 b) $54.25 c) $68.75 d) $270.62

Anton Bielousov asked Dec 11, 2024

by Anton Bielousov

8.2k points

1 answer

0 votes

181k views

Amino acids and simple sugars derived from proteins and carbs are what?

Jcfaracco asked Dec 11, 2024

by Jcfaracco

7.3k points

1 answer

0 votes

225k views

Select the most active metal in terms of dis- placement reactions. 1. Cu 2. Zn 3. Ca 4. Al

Joshua Berry asked Dec 11, 2024

by Joshua Berry

8.7k points

1 answer

1 vote

137k views

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