Chemistry College


A student in lab needs to make a solution that is 8.00% by mass NaCl. If 145 g of NaCl is available, what mass of solution can
be prepared?

Answers

Answer 1

According to the given statement 1812.5 g mass of solution can be prepared.

How is solution formed?

When one substance dissolves, or separates into the other, a solution is created. A solute is the name for the material that dissolves to create a solution. A solvents is the material that a solution will dissolve in. Sugar is the solute while water is the solvent in a sugar syrup.

Briefing:

8.0% by mass NaCl means 8 g NaCl in a total of 145 g solution. (note it is g of total solution)

Use dimensional analysis:

145 g NaCl x 100 g solution/8 g NaCl

= 1812.5 g solution

To know more about Solution visit:

https://brainly.com/question/1616939

#SPJ9

Related Questions

For the reaction of calcium chloride and sodium oxalate, write: a chemical equation that represents the reaction including all appropriate phase labels (e.g. (s), (l), (aq)).​

Answers

The chemical equation that represents the reaction is NaCl(s) ⇒Na+(aq) + Cl-(aq).

A mixture of sodium sulfate and calcium chloride produces four crystals sodium sulfate calcium chloride sodium chloride and calcium sulfate. Calcium chloride dissolved in water dissociates into ions according to the formula This is an example of a precipitation reaction. This occurs when two aqueous solutions combine to form a precipitate and by-products. It is also usually water-based.

A balanced equation is an equation of a chemical reaction in which the number of atoms and the total charge of each element in the reaction is the same for both reactants and products. In other words, mass and charge are balanced on both sides of the reaction. Widely used as an acid laundry detergent, oxalic acid effectively removes rust and ink stains because it converts most insoluble iron compounds to soluble complex ions.

Learn more about chemical reaction here:-https://brainly.com/question/11231920

#SPJ1

The charge on an electrically neutral atom of hydrogen is __.


A +1


B 0


C -1

Answers

Answer:

B. 0

Explanation:

The charge on any electrically neutral atom is alway zero.

an example of a element would be A. Chlorine gas B. salt C. tap water D. vegetable soup

Answers

An example of a element would be chlorine gas

An element is a substance whose atoms all have the same number of protons another way of saying this is that all atoms of a given element have the same number of protons and elements are the simplest chemical forms and thus can not be broken down through chemical reactions and chlorine is a yellow-green gas at room temperature and chlorine has a pungent, irritating odor similar to bleach that is detectable at low concentrations and the density of chlorine gas is approximately 2.5 times greater than air and in the given option only chlorine gas is the element

Know more about element

https://brainly.com/question/24154390

#SPJ1

How many grams of Br are in 115 g CaBr₂?

Answers

Answer: 95.7 g Br

Explanation: Molecular weight of Ca = 40.78

Molecular weight of Br is 79.9.

Molecular weight of CaBr2 is 192g/mol

115g CaBr2 x 1 mol CaBr/192g  = 0.6  x 2 mol Br/1mol CaBr2 = 1.2 mol Br

1.2 mol Br x  79.9g Br/mol Br =  95.7g Br

A chemistry student needs 65.0 g of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of pentane is 1.10 g-cm^- 3. Calculate the volume of pentane the student should pour out. Be sure your answer has the correct number of significant digits.

Answers

The volume of the pentane the student should pour out, given that he needed 65.0 g of it is 59 cm³

How to determine the volume

From the definition of density, we can obtain an expression to calculate volume. This is illustrated below:

Density = mass / volume

Cross multiply

Density × volume = mass

Divide both sides by density

Volume = mass / density

With the above formula, we can obtain the volume of the pentane as follow:

Mass of pentane = 65 gramsDensity of pentane = 1.10 g/cm³ Volume of pentane = ?

Volume = mass / density

Volume = 65 / 1.10

Volume = 59 cm³

Thus, the volume of the pentane is 59 cm³

Learn more about density:

https://brainly.com/question/952755

#SPJ1

Calculate the number of grams that would be needed to make 2.50 x 10? mL of 0.754 M KOH. Enter your answer in the provided box.

Answers

Concentration
=
Moles of solute
Volume of solution
, and get approx.
2.5
⋅
g

K
O
H
.
Explanation:
And so (i) we calculate the molar quantity.....
Moles of KOH
=
concentration
×
volume
=
0.179
⋅
m
o
l
⋅
L
−
1
×
250.0
⋅
m
L
×
10
−
3
⋅
L
⋅
m
L
−
1
=
4.475
×
10
−
2
⋅
m
o
l
.
And then (ii) we multiply this molar quantity by the formula mass of
K
O
H
, .....
4.475
×
10
−
2
⋅
m
o
l
×
56.11
⋅
g
⋅
m
o
l
−
1
=
?
?
⋅
g
Other Questions
solve for x. round to the nearrest hundredth if necessary What was the impact of the "discovery" of the new world on Native Americans? What is an example of positive feedback?A) A computer screen dimming when the battery gets low. B) A herd of buffalo running away after one of them spots a lion.C) A pressure cooker valve opening to reduce the high pressure inside.D) A thermostat switching on an air conditioner when the temperature gets too hot. Suppose that 20% of the residents of Illinois have the flu and that 75% of the patients going to a doctor for testing have the flu. If a practioneer in Illinois uses a test that is 60% accurate...a. What is the probability that a patient receives a false-negative result?b. What is the probability that a patient receives a true-negative result?c. What is the probability of a false-negative result given that the result is negative? EASY POINTS WILL GIVE BRAINLIST TO BEST ANSWERDetermine if the sequence is arithmetic. If it is, find the common difference, the 21st term, the explicit rule, the recursive rule, and the three terms in the sequence after the last one given.33, 35, 37, 39 What president in the US began theconservation efforts to preserve land?A. John F. KennedyB. Abraham LincolnC. George WashingtonD. Theodore Roosevelt What is the difference between Tara and her mom ? find the unit rate if suzie reads 45 books in 15 days what is 2 1 4 + (1 3 4 ) Suppose you apply a flame and heat one liter of water, raising its temperature 10 degrees celsius. If you transfer the same heat energy to two liters, how much will the temperature rise? According to the reading (p. 142), why did the "classical cultural tradition emerge when it did?Select one:a.It was a time of law and order, which enabled rulers to attempt to formulate new theories on leadership.b.It was a time of political chaos and uncertainty, which led people to seek answers to the question of how to bring about a stable society.c.It was a time of great prosperity, which allowed time for people to be more philosophical.d.It was a tranquil time, which helped to provide the backdrop for philosophies that focused on contemplation and peace. write an algebraic expression that represent the purchase. Baseball= $7, Sweat socks = $6, Soccer ball = $30. Mr. Mishra bought x number of soccer balls and 5 baseballs. Write an expression for the cost of Mr. Mishra's purchase. Write an equation in point-slope form of the line that passes through the given points, then write the equation in slope-intercept form.(-9,7) (9,1)What is the point-slope form of the equation of the line? what is a global network of organizations and activities that supply a firm with goods and services? part 2 a. supply tree b. supply chain c. vendor tree d. vendor network e. provider network Kate and Sam are using a scanning electron microscope to study photosynthesis in algae. Which is the benefit of this type of microscope compared to a light microscope? Read each statement below. If the statement is true, write the word true in the space provided. If the statement isfalse, write the word false in the space provided.1. Circadian rhythms in plants and animals are based on Earth's rotation of about 24 hours.Tive2. The lithosphere is made up of the solid part of the upper mantle and the crust.3. Studies of seismic waves suggest that the lithosphere is probably more rigid than theasthenosphere.4. P-waves travel faster through liquids than through solids.5. According to Newton's law of gravitation, the force of attraction between any two objectsdepends on the weight and temperatures of the objects.6. Rays of the Sun that strike the Earth at near 90 produce the greatest amount of heat.7. When the Southern Hemisphere experiences summer, the Northern Hemisphereexperiences winter.8. In a standard time zone, the Sun is highest over the center of the zone at Noon.9. A satellite in polar orbit passes over a different portion of the Earth's surface with each orbit.10. The orbits of communication satellites are geosynchronous orbits. A food handler removes a pan of prepared cold sandwiches from refrigeration and places them on the prep table in the kitchen area then leaves to receive an order of supplies. What is the potential problem with this situation? franco, m.c.p., christofalo, d.m.j., sawaya, a.l., ajzen, s.a., sesso, r., 2006. effects of low birth weight in 8- to 13-year-old children. hypertension (dallas, tex. : 1979) 48, 4550. question 3. a full ternary tree is a tree whose internal nodes each have exactly three children. (a) write a recursive definition for a full ternary tree. (b) write a recursive definition for the number of internal nodes i(t) in a full ternary tree. (c) write a recursive definition for the number of external nodes e(t) in a full ternary tree. (d) write a recursive definition for the total number of nodes n(t) in a full ternary tree. PLEASEEEEE HELP IDEK WHAT TO DO