« previous next »

Author Question: How many moles of HCl are present in 35.5 mL of a 0.200 M solution? A) 0.236 mol B) 0.178 mol ... (Read 76 times)

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
on: Aug 27, 2018
How many moles of HCl are present in 35.5 mL of a 0.200 M solution?
 
  A) 0.236 mol
  B) 0.178 mol
  C) 0.974 mol
  D) 0.00710 mol
  E) 0.195 mol

Question 2

A 12.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity of 5.65 kJ/C. Using the information below, determine the final temperature of the calorimeter if the initial temperature is 25.0C.
 
  The molar mass of ethanol is 46.07 g/mol.
 
   C2H5OH(l) + 3 O2(g)  2 CO2(g) + 3 H2O(g) Hrxn = -1235 kJ
 
  A) 53.4C
  B) 28.1C
  C) 111C
  D) 85.7C
  E) 74.2C

Question 3

What precipitate is most likely formed from a solution containing Ba+2, Na+1, OH-1, and CO3-2.
 
  A) NaOH
  B) BaCO3
  C) Na2CO3
  D) Ba(OH)2

Question 4

Is 25 kilometers per liter good gas mileage for a VW Rabbit diesel? Hint: How do we measure mileage in the English system?
 
  What will be an ideal response?


234sdffa

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

D

Answer to Question 3

B

Answer to Question 4

It's good: 59 miles/gal.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Preparing solution of known Molarity Preparing solution of known Molarity
Solution Solution
The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ... The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ...
What is the pH of an aqueous solution if the [H+] = 0.000 000 075 M? What is the pH of an aqueous solution if the [H+] = 0.000 000 075 M?
How many gold atoms are contained in 3.75 moles of gold? How many gold atoms are contained in 3.75 moles of gold?
What is the concentration, in mg/ml, of a solution containing 2mEq/ml of potassium chloride? What is the concentration, in mg/ml, of a solution containing 2mEq/ml of potassium chloride?
Video: Interpreting a cladogram Animation

For a complete list of videos, visit our video library