This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What volume of 50 NaOH is needed to prepare 25 mL of 2.0 NaOH? ... (Read 146 times)

plus1

  • Hero Member
  • *****
  • Posts: 676
on: Aug 23, 2018

What volume of 50 NaOH is needed to prepare 25 mL of 2.0 NaOH?
 
 



Question 2

You need 45 mL of a 5 aqueous solution of NaHCO3.
  (a) What weight of NaHCO3 is required?
  (b) How much water will you add?
 
 



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ashely1112

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Aug 23, 2018
Answer to Question 1

(a) 25 mL x (2.0 g/100 mL) = 0.50 g
X mL x (50 g/100 mL) = 0.50 g, X = 1 mL



Answer to Question 2

(a) 45 mL (5 g/100 mL) = 2.25 g
(b) enough to make the final volume 45 mL



plus1

  • Member
  • Posts: 676
Reply 2 on: Aug 23, 2018
Wow, this really help

sailorcrescent

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

The nurse uses a noninvasive bladder ultrasound to measure the client’s bladder volume. The nurse uses a noninvasive bladder ultrasound to measure the client’s bladder volume.
Fluidization - Concentration NaOH Chart Fluidization - Concentration NaOH Chart
Prepare knee for cold application. Undrape the leg. Check tissues visually and through palpation, ... Prepare knee for cold application. Undrape the leg. Check tissues visually and through palpation, ...
Equipment and supplies needed for manual exfoliation using natural substances. Equipment and supplies needed for manual exfoliation using natural substances.
An unknown gas occupies a volume of 1.50 L at 21 °C and 0.950 atm. If the mass i An unknown gas occupies a volume of 1.50 L at 21 °C and 0.950 atm. If the mass i
What volume of a 0.831 M solution of CaCl2 contains 1.28 g of solute? What volume of a 0.831 M solution of CaCl2 contains 1.28 g of solute?
Video: Bond types - Atomic structure and basis of bonds

For a complete list of videos, visit our video library