1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dennis_Churaev [7]
3 years ago
13

A hygroscopic compound readily absorbs water from the air. This water can be removed by gently heating the compound. 5.24 g of a

hygroscopic compound was heated to remove the absorbed water. After heating the dry compound had a mass of 4.16 g. What was the mass percent of water in the original compound?
Chemistry
1 answer:
olchik [2.2K]3 years ago
4 0

Answer:

This means 20.6% of the original hygrocopic compound is water

Explanation:

<u>Step 1:</u> Given data

A hygroscopic compound weighs 5.24 grams

To remove the absorbed water the compound is heated.

After the heating process, the compound weighs 4.16 grams

<u>Step 2:</u> Calculate the mass of the water

The total mass of the hygroscopic compound = mass of water + mass of dry compound

The mass of water = The total mass of the hygroscopic compound - mass of dry compound

The mass of water = 5.24 grams - 4.16 grams = 1.08 grams

<u>Step 3: </u>Calculate the mass percent of water in the original compound

1.08g / 5.24g *100% = 20.6%

<u>Step 4: </u>To control this we can calculate the mass percent of the dry compound

4.16g / 5.24g *100 % = 79.4%

20.6% + 79.4% = 100%

This means 20.6% of the original hygrocopic compound is water

You might be interested in
Marvin records scientific data about Lake Superior. For which property has Marvin forgotten to use an SI unit of measurement?
Illusion [34]

Answer: low temperature

Explanation:-

S.I or M.K.S is a system for defining physical units as meter, kilogram, second, ampere, kelvin or celcius, candela, and mole together with a set of prefixes to indicate multiplication or division by a power of ten for measuring length, mass, time , current, temperature and amount of substance respectively.

Given :

lake length = 563 kilometers = 563\times 10^3m

High temperature =76.5^0F

Low temperature =-6.3^0C

annual precipitation =762 mm= 762\times 10^{-3}m

Thus low temperature in units of Fahrenheit is not an S.I unit of measurement.

8 0
3 years ago
Read 2 more answers
Calcium + zinc nitrate -------&gt;
Snezhnost [94]

Answer:

c

Explanation:

there will be displacement reaction taking place

8 0
3 years ago
Read 2 more answers
3. A cylinder of compressed gas has a pressure of 4.882 atm on one day. The next
Debora [2.8K]

Answer:

PART A

Explanation:

3. A cylinder of compressed gas has a pressure of 4.882 atm on one day. The next

day, the same cylinder of gas has a pressure of 4.690 atm, and its temperature is

8°C. What was the temperature on the previous day in °C? Ans: 20°C.

7 0
3 years ago
Which compound contains a triple bond?
Masteriza [31]

Answer: C2H2

Explanation: Because each of the lines represent one bond, and because there are three lines (bonds) between the carbons, it means that they are bonded by three bonds, also known as a triple bond.

5 0
3 years ago
Read 2 more answers
HELP I WILL GIVE YOU BRAINLEST!
vaieri [72.5K]

Answer:

it is blury

Explanation:

3 0
3 years ago
Other questions:
  • Why does your reflection in a mirror look different from your reflection in wood
    8·1 answer
  • A current of 0.15 A is passed through an aqueous solution of K2PtCl4. How long will it take to deposit 1.00 g Pt(s) (M = 195.1)?
    9·1 answer
  • Consider this equilibrium: I2(s) + H2O(l) H + (aq) + I-(aq) + HOI(aq). What is the Keq expression for this equilibrium?
    14·1 answer
  • BRAINIEST TO THE ONE WHO ANSWER THIS
    8·2 answers
  • A botanist is measuring plants to determine amount of growth after fertilizer was used. A ruler was used for the measurements. W
    14·1 answer
  • Is water wet? If so explain if not also explain please!
    7·2 answers
  • Something made of all one material
    5·1 answer
  • 1.6x10^23 lead atoms. Find the weight in grams
    9·1 answer
  • Does a negative exponent mean that the number is less than 1 yes or no​
    12·1 answer
  • Given the reaction:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!