Register
Answer has to be in two significant figures
157k views
5 votes
Answer has to be in two significant figures

Answer has to be in two significant figures-example-1
User DanielEli
by
4.3k points

1 Answer

3 votes

Answer: 2.186 m

Step-by-step explanation:

formula for molality: (mol solute)/(kg solvent)

Na2CO3 = solute

510g Na2CO3 * ( 1 mol / 106 g) = 4.811 mol solute

ethylene glycol = solvent

2.2 * 10^3 g * ( 1 kg / 1000 g) = 2.2 kg

(4.811/2.2) = 2.186

User Tyler Egeto
by
4.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.4m questions

5.7m answers

Other Questions

Which of the following aqueous solutions are good buffer systems? . 0.29 M perchloric acid + 0.15 M potassium perchlorate 0.16 M potassium acetate + 0.26 M acetic acid 0.18 M hydrofluoric acid + 0.12 M
Suppose a flask is filled with of , of and of . The following reaction becomes possible: The equilibrium constant for this reaction is at the temperature of the flask. Calculate the equilibrium molarity
What mass of 2-naphthol would have to be ingested by each rat in a sample set of rats in order to kill half the population of rats? Assume each rat weighs 230 g. Show your calculations for full credit.
What color flame did lead nitrate produce? yellow-red blue green purple
TRUE or FALSE: Volcanoes help warm the planet by releasing CO2 (carbon dioxide)
Link Copied!