answer.
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]
2 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]2 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
in the early studies of chemistry, scientists used properties and changed to help identify compounds. this is still done today.
Kaylis [27]
The salt water is a mixture because the salt and the water can be separated from each other. The dissolution of salt inside water is a physical change.  At the same time, the salt water is an electrolyte, because it conducts electricity. The electricity that was pass through the water led to the decomposition of the water; those bubbles that form inside the water represent oxygen gas which is a product of decomposition of water, therefore the electricity that was passed through the salt water has caused chemical change to occur inside the salt water.<span />
6 0
2 years ago
What do a banana and a human have in common?
Dmitry [639]

Answer:

DNA between a human and a banana is 41 percent similar.

Explanation:

3 0
2 years ago
Read 2 more answers
The volume of a single strontium atom is 4.15×10-23 cm3. What is the volume of a strontium atom in microliters
Ivenika [448]

Answer:-  4.15*10^-^2^0\mu L

Solution:- It is a volume unit conversion problem where we are asked to convert the volume from cm^3 to microliters.

We know that:

1cm^3 = 1 mL

1mL=10^-^3L

and, 1L=10^6\mu L

Let's use these conversions factors for the desired conversion using dimensional as:

4.15*10^-^2^3cm^3(\frac{1mL}{1cm^3})(\frac{10^-^3L}{1mL})(\frac{10^6\mu L}{1L})

= 4.15*10^-^2^0\mu L

So, the answer is  4.15*10^-^2^0\mu L .

7 0
2 years ago
Morant Bay is 33 km south of Port Antonio a pigeon can fly at a speed of 1.2 m s what is the displacement of morant bay from Por
valkas [14]

Answer:

33km due south

Explanation:

Morant Bay is 33km south of Port Antonio;

  Problem: displacement of Morant bay from Port Antonio;

Displacement is a vector quantity. It is the length of path between two position and the direction inclusive.

So, it has magnitude and must be specified with a direction.

  • Therefore, the displacement of Morant Bay from Port Antonio is 33km due south.
4 0
2 years ago
How many acidic protons are there in 0.6137 g of KHP?
andreyandreev [35.5K]

0.6137 g of KHP contains 1.086 × 10^21 acidic protons.

Number of moles of KHP = mass of KHP/molar mass of KHP

Molar mass of KHP = 204.22 g/mol

Mass of KHP = 0.6137 g

Number of moles of KHP = 0.6137 g/204.22 g/mol = 0.003 moles of KHP

Now,  1 each molecule of KHP contains 1 acidic proton.

For 0.003 moles of KHP there are; 0.003 × 1 × NA

Where NA is Avogadro's number.

So;  0.003 moles of KHP contains 0.003 × 1 × 6.02 × 10^23

= 1.086 × 10^21 acidic protons.

Learn more: brainly.com/question/16672114

7 0
2 years ago
Other questions:
  • How many ions are there in 0.187 mol of Na+ ions
    6·2 answers
  • Match the correct properties and characteristics of each type of rock?
    11·2 answers
  • What is the maximum number of grams of ammonia, nh3, which can be obtained from the reaction of 10.0 g of h2 and 80.0 g of n2? n
    8·1 answer
  • A sample of gas has a volume of 215 cm3 at 23.5 degrees Celsius and 84.6kPa what volume will the gas occupy at stp
    13·2 answers
  • The ________ orbital is degenerate with 5py in a many-electron atom.
    14·1 answer
  • The first step in the Ostwald process for producing nitric acid is 4NH3(g) + 5O2(g) --&gt; 4NO(g) + 6H2O(g). If the reaction of
    9·2 answers
  • the air pressure was 101.3 kPa, but the weatherman said it was 1001.3 kPa. What is the percentage error​
    15·1 answer
  • A 0.050 M solution of AlCl3 had an observed osmotic pressure of 3.85 atm at 20 ∘C . Calculate the van't Hoff factor i for AlCl3.
    10·1 answer
  • A student obtained a clean flask. She weighed the flask and stopper on an analytical balance and found the total mass to be 34.2
    14·1 answer
  • Determine whether each phrase describes carboxylic acids or esters.a. Do not form hydrogen bonds amongst themselves and have hig
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!