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
sashaice [31]
4 years ago
5

You can practice converting between the mass of a solution and mass of solute when the mass percent concentration of a solution

is known. The concentration of the KCN solution given in Part A corresponds to a mass percent of 0.180 %. What mass of a 0.180 % KCN solution contains 768 mg of KCN?
Chemistry
1 answer:
LUCKY_DIMON [66]4 years ago
8 0

<u>Answer:</u> The mass of solution having 768 mg of KCN is 426.66 grams.

<u>Explanation:</u>

We are given:

0.180 mass % of KCN solution.

0.180 %(m/m) KCN solution means that 0.180 grams of KCN is present in 100 gram of solution.

To calculate the mass of solution having 768 mg of KCN or 0.786 g of KCN   (Conversion factor:  1 g = 1000 mg)

Using unitary method:

If 0.180 grams of KCN is present in 100 g of solution.

So, 0.768 grams of KCN will be present in = \frac{100g}{0.180g}\times 0.768=426.66g of solution.

Hence, the mass of solution having 768 mg of KCN is 426.66 grams.

You might be interested in
Match each of the following forms of sugar to its best description?
prohojiy [21]

Sucrose, a sweet, white crystalline substance, C12 H22 O11, OBTAINED CHIEFLY FROM THE JUICE OF THE SUGAR CANE AND SUGAR BEET, BUT ALSO PRESENT IN SORGHUM, THE sugar maple, some palms, and various other plants, and having extensive nutritional, pharmaceutical, and industrial uses; any of the class of carbohydrates to which this substance belongs, as glucose,  levulose, and lactose.
5 0
3 years ago
Can you check this for me?
Aliun [14]
Hi, your answer is correct.
3 0
3 years ago
Multiple covalent bonds may occur in atoms that contain carbon,nitrogen, or
Arisa [49]

Answer: Multiple covalent bonds may occur in atoms that contain carbon,nitrogen, or  <u><em>oxygen</em></u>.

8 0
3 years ago
What happens if you are in a swimming<br> pool and you push a beach ball down<br> with your hands?
Aleksandr-060686 [28]

Answer:

it will float back up because it's not dense enough to go down

7 0
3 years ago
How many grams is 3.35 moles of hcl
lions [1.4K]
Do this

3.35mol HCl | 34.46g HCl
------------------------------------
          1          | 1mol HCl
Multiply all the numbers on top by all the numbers on bottom.

7 0
3 years ago
Other questions:
  • (CH3)2N2H2 + N2O4 → N2 + H2O + CO2 + heat [balance?]​
    14·1 answer
  • Gaseous methylamine, CH3NH2, can be classified as __________.(a) a Lewis base only(b) Arrhenius and Brønsted-Lowry bases(c) a Br
    10·1 answer
  • Write one scientific question about the organism in the photo
    12·2 answers
  • What is a substrate?
    11·2 answers
  • A flask containing helium gas is connected to an open-ended mercury manometer. The open end is exposed to the atmosphere, where
    7·1 answer
  • What function do a brain cell and liver cell have in common?
    15·2 answers
  • which type of bonding involves sharing valence electrons, but the valence electrons aren't confined to a specific region between
    11·1 answer
  • Sahil watched a demonstration in which a scientist combined two substances in a sealed container and analyzed the results. The e
    13·1 answer
  • Sphalerite contains about 30% zinc. Calculate the maximum amount of zinc that could be obtained from 1000kg sphalerite.
    9·1 answer
  • Which of the following is a gaseous substance that is liquid or solid at room
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!