Chemistry, 11.04.2020 03:23 nessuhbae6731

PRE-LAB ASSIGNMENT: Practice Calculations
Use the data provided to complete the following calculations in your lab notebook:
DATAI:
Mass of empty crucible
22.498
Mass of crucible + hydrate 26.70 g
(before heating)
Mass of crucible + anhydrous salt 25.82 g
(after first heating)
Mass of crucible + anhydrous salt 25.81 g
(after second heating)
a. Determine the mass of hydrate used.
Mass of hydrate - (Mass of crucible + hydrate before heating) - (Mass of empty crucible)
b. Determine the mass of anhydrous salt.
Mass of anhydrous salt - (Mass of crucible + anhydrous salt after final heating) - (Mass of empty
crucible)
c. Determine the mass of water.
Mass of water - (Mass of hydrate)- (Mass of anhydrous salt)
d. Determine the percentage of water in the hydrate.
% water - Mass of water x 100
Mass of hydrate

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 06:30

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

Answers: 1

Answer

Chemistry, 22.06.2019 15:30

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe

Answers: 1

Answer

Chemistry, 22.06.2019 17:10

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

Answers: 2

Answer

Chemistry, 23.06.2019 01:20

Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 × 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)

Answers: 1

Answer

You know the right answer?

PRE-LAB ASSIGNMENT: Practice Calculations
Use the data provided to complete the following calc...

Questions