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
miskamm [114]
4 years ago
11

How many grams of nano3 are needed to prepare 100 grams of a 15.0 % by mass nano3 solution? will give brainliest

Chemistry
1 answer:
Greeley [361]4 years ago
5 0

Answer:

Calculate the mass percent of a potassium nitrate solution when 15.0 g KNO3 is dissolved in 250 g

of water.

2. Calculate the mass percent of a sodium nitrate solution when 150.0 g NaNO3 is dissolved in 500 mL

of water. Hint: 1 mL water = 1 g water

3. Calculate the weight of table salt needed to make 670 grams of a 4.00% solution.

4. How many grams of solute are in 2,200 grams of a 7.00% solution?

5. How many grams of sodium chloride are needed to prepare 6,000 grams of a 20% solution?

Mass Percent = Grams of Solute

Grams of Solution X 100%

100%

Grams of Solute = Grams of Solution X Mass Percent

= 26.8 grams NaCl

= 670 grams X 4.00%

100%

100%

Grams of Solute = Grams of Solution X Mass Percent

= 154 grams solute

= 2,200 grams X 7.00%

100%

100%

Grams of Solute = Grams of Solution X Mass Percent

= 1,200 grams NaCl

= 6,000 grams X 20.0%

100%

Explanation:

You might be interested in
So de fanga gu se si gage humang we sapa shata phoni we heo sang pai​
PilotLPTM [1.2K]

Answer:

Which language is this???

5 0
3 years ago
One atomic model describes electrons moving in clouds around the nucleus.
bixtya [17]

Answer: D.  It is the currently accepted atomic model.

Explanation:

It is the mordern atomic model, also known as the Electron Cloud Model. Indicating that the nucleus of an atom is surrounded by a cloud of electrons.

8 0
3 years ago
Help me on a and b pls
marusya05 [52]

Answer:

yes, it is increased by atomic mass

Explanation:

5 0
3 years ago
What two molecules were condensed in an aldol condensation to produce (ch3)3cch=chcoch3?
inessss [21]
The given compound is being synthesized by condensing Acetone and Pivaldehyde (Trimethylacetaldehyde).

First Acetone is treated with Base, the base abstracts the mildly acidic proton present at alpha position to carbonyl group. The resulting specie called enolate act as a nucleophile and attacks on highly reactive aldehyde which upon dehydration yields the Aldol Product. The Reaction is as follow,

5 0
3 years ago
Carbon has an atomic number of 6. How many electrons are in a carbon atom’s second energy level?
matrenka [14]
Carbon is an atom so electrons=protons 
<span>First shell has 2 electrons and the next 8 so with 6 electrons the first shell fills and 4 are left to go into the 2th shell.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • How is the chemical composition of carbon monoxide,CO,similar to that of carbon dioxide,CO2?how is it different?
    10·1 answer
  • The molar solubility of manganese(ii) carbonate is 4.2 × 10–6m. what is kspfor this compound?
    11·1 answer
  • When wind drops its load of sand,it can form a hill called
    11·1 answer
  • Which of the following questions can be answered by science? (5 points)
    10·1 answer
  • Find out how many atoms will fit in one apple . Adius of an apple is about 3.5 cm and the radius of an atom is 1.5 angstrom
    10·1 answer
  • Need some help with this Chem Question :)
    13·1 answer
  • What is the correct formula for the compound formed between magnesium and the phosphate ion?​
    15·1 answer
  • Which are characteristics of scientific questions? Check all that apply.
    15·2 answers
  • Why would a scientist method of data collection change based on where they conduct their experiment?
    6·1 answer
  • PLEASE HELP!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!