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
7nadin3 [17]
3 years ago
5

What is the percentage of water in the hydrate cocl2 • 6h2o

Chemistry
1 answer:
lord [1]3 years ago
8 0

Answer:

52.17%

Explanation:

COCl2.6H20

C=12,O=16,Cl=35.5,H=1

Relative molecular mass of COCl2.6H2O= 12+16+71+6(2+16) = 99 + 108= 207g

Relative molecular mass of 6H2O = 108g

Percentage of water = (108/207 )*100

= 52.17%

You might be interested in
Why is the addition of cold distilled water to the container holding the aspirin you are trying to isolate a necessary step and
Rudik [331]

Answer:

The aspirin is more soluble in ethanol than water - the water helps the crystals separate from solution.

Explanation:

Hope this helps!

3 0
2 years ago
Which of these equations best summarizes photosynthesis?
elena-14-01-66 [18.8K]

Answer: C

Explanation:

                                              Sunlight

6 CO2       +          6 H2O   -------------->            C6H12O6    +        6 O2

                                            Chlorophyll

Carbon(IV)oxide   Water                               Glucose              Oxygen

7 0
3 years ago
The diagram shows three isotopes. What element is represented?
lisov135 [29]

Answer:

Where is the diagram?please put the pictu

3 0
2 years ago
Read 2 more answers
What is the concentration of H3O+ ions in saliva if [OH-] = 4.22 x 10-10 M? Provide the pH and the classification of this sample
OLEGan [10]

pH=4.625

The classification of this sample of saliva : acid

<h3>Further explanation</h3>

The water equilibrium constant (Kw) is the product of concentration

the ions:

Kw = [H₃O⁺] [OH⁻]

Kw value at 25° C = 10⁻¹⁴

It is known [OH-] =  4.22 x 10⁻¹⁰ M

then the concentration of H₃O⁺:

\tt 10^{-14}=4.22\times 10^{-10}\times [H_3O^+]\\\\(H_3O^+]=\dfrac{10^{-14}}{4.22\times 10^{-10}}=2.37\times 10^{-5}

pH=-log[H₃O⁺]\tt pH=5-log~2.37=4.625

Saliva⇒acid(pH<7)

6 0
3 years ago
Which technology was essential for the development of the cell theory?​
vodka [1.7K]

Answer: Microscope

Explanation: This is a kid answering :)

8 0
3 years ago
Other questions:
  • To aid in the prevention of tooth decay, it is recommended that drinking water contains 0.900 ppm fluoride (F-). A) How many g o
    15·1 answer
  • If 39.0 g of C6H6 reacts with excess chlorine and produces 30.0 g of C6H5Cl in the reaction C6H6 + Cl2 → C6H5Cl + HCl , what is
    9·1 answer
  • PLEASE ASAP. CHM help!
    11·1 answer
  • Your science teacher gives you three liquids to pour into a jar. After pouring, the liquids layer as seen here. What property of
    8·2 answers
  • At a constant temperature, 600 mL of an ideal gas is at a pressure of 760 mmHg . If the volume is decreased to 300 mL, the press
    13·1 answer
  • What is each vertical column of elements in the periodic table called?
    6·1 answer
  • Assuming the partial pressure of oxygen in air (0.20 atm) and nitrogen in air (0.80 atm). Calculate the mole fractions of oxygen
    14·1 answer
  • Which statement best explains why an object appears green in sunlight?
    10·1 answer
  • What is the percent enantiomeric excess (ee) of a mixture that has 86% of one enantiomer and 14% of the other
    11·1 answer
  • Plzz help
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!