Otakumetalhead666 Otakumetalhead666

22-11-2020
Chemistry

contestada

How many grams of KOH are required to prepare 500. mL of 0.450 KOH solution?

Respuesta :

britrr198174 britrr198174

22-11-2020

Answer:

KOH molar mass = 39 + 16 + 1 = 56g

To make 1 L of 1M soln needs 56g KOH

To make 500mL 1M needs 56/2 = 28g

To make 500mL 0.2M needs 28 x 0.2gn:

Answer Link

Otras preguntas

"Identify the volume of a regular triangular pyramid with base edge length 9 ft and height 12 ft. Round to the nearest tenth, if necessary." I keep on getting 1

Which type of monster would best fit into the time period before Mary Shelley's Frankenstein? A. A mutant bear that was damaged by environmental waste and no

(Antigone) Creon says that Antigone is "of all the people in this city, only she/Has had contempt for my laws and broken it." Why is this not true? A. Antigone

Which of these statements best compares the Roman Republic with ancient Greece's direct democracy?

Subtract. (Models confuse me) (-2x+6)-(13x-16) A. 11x-10 B. 11x+22 C. -15x-10 D. -15x+22

suppose you deal 3 cards from a regular 52 card deck what is the probability that they will be all jacks?

Japanese music uses a _______ scale; instead of having seven notes, typically the scales have only five. a. double-exposition b. rondo c. gapped d. cadenza

The bright-line spectrum of an element in the gaseous phase is produced as (1) protons move from lower energy states to higher energy states (2) protons move fr

Jamerra received a $3,000 car loan. She plans on paying off the loan in 2 years. At the end of 2 years, Jamerra will have paid $450 in interest. What is the sim

A company made $4 million in the second quarter. This is 1/3 more than it made in the first quarter and 4/5 of what it made in the third quarter. How much did t