Coug

This page lists questions and answers that were posted by visitors named Coug.

Questions

The following questions were asked by visitors named Coug.

What gas is produced when hydrochloric acid is reacted with ammonium carbonate?
15 years ago
what type of reaction occures when a hydrochloric acid solution is mixed with a sodium bicarbonate solution? I chose gas evolution, but am wondering if it is acid-base neutralization instead.
15 years ago
you just answered a question for me, but the following are my answers to choose from. it was the 2nd question that I posted. about hydrocloric acid solution mixing with sodium bicarbonate. So, my answers to choose from are gas evolution, precipitation, ac...
15 years ago
Given that the solubility of sodium chloride is 36 grams per 100 grams of water. Which of the following solutions would be considered supersaturated? A. dissolve 5.8 moles of NaCl in 1 L of water B. dissolve 1.85 moles of NaCl in 300 ml of water C. dissol...
15 years ago
What is the final concentration (M) of a solution prepared by diluting 50.0 mL of a 6.00 M KCl solution to a volume of 0.500 L? A. 1.67 B. 0.600 C. 0.0167 D. 3.0 E. none of these My initial thought was to take the 6.00 M KCl/0.500 L, for an answer of 12....
15 years ago
Solve the equation. (the 6s are supposed to be sub-scripted, but I can't type subscripts) Problem: log6 7 - log6 x = 4 Choose one answer. a. 7/24 b. 7/1296 c. 7/4 d. 1296/7 I am so lost, can you please help me understand this? I need to know how to do thi...
15 years ago
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions. 8 ln x -(1/3) ln y Choose one answer. a. ln x^8 y^3 b. ln x^8 /3"sqrt...
15 years ago
A photo width is 2 in. more than it's length. A borderof 1 in is placed around the photo, and the area covered by the photo and it's border is 120 sq. inches. Find the dimensions of the photo itself.
15 years ago
In a lab, .0092 moles of Cu were reacted with .0046 miles of S. What would happen to the mole Cu/mole S ratio if some of the copper was unreacted (increase, decrease, stay the same)? Also, what will happen to the mole Cu/ Mole S ratio if unreacted sulfur...
15 years ago
What is the molecular weight of a gas if a 15.0g sample has a pressure of 836 mm Hg at 25.0 degrees C in a 2.00 L flask? a)167 b)1.35 c)176 d)11.1 e)none of the above Please explain... I need to understand how to do this. Thanks.
15 years ago
what is the initial temperature (in degrees C) of a system that has the pressure decreased by 10 times while the volume increased by 5 times with a final temperature of 150 K? a)27 b)75 c)300 d)-198 e) none of the above Please explain--I need to know how...
15 years ago
A sample of helium gas initially at 37.0 degrees C, 785 torr and 2.00 L was heated to 58.0 degrees C while the volume expanded to 3.24 L. What is the final pressure in atm? a)1.79 b)3.21 c)0.681 d).517 e)none of the above please explain--I need to know ho...
15 years ago
What type of reaction occurs when potassiumbromide solution is mixed. With lead(II) acetate solution? Gas evolution, oxidation reduction, precipitation, acid-base neutralization, or no reaction
15 years ago

Answers

The following answers were posted by visitors named Coug.