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natita [175]
3 years ago
14

Read the text

Chemistry
1 answer:
Citrus2011 [14]3 years ago
3 0

Answer:

1. EXPOSE TWO GROUPS TO THE AROMA OF CHOCOLATE CHIP COOKIES BAKING

2.HAVE ONE GROUP EAT ONLY CHOCOLATE CHIPS COOKIES, AND HAVE THE OTHER GROUP EAT ONLY RADISHES

3.

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If a solution contains 20g of glycerol and 5g of coeine, what is the codeine percentage strength of the solution?
Strike441 [17]

20%

The codeine percentage strength of the solution is 20%

  • The term "percent strength" describes the proportion of a material that has dissolved in a given volume of liquid.
  • Knowing how parts relate to wholes is the secret of % strength: A percent is equal to x parts out of 100 overall.

<h3>Meaning of percentage strength</h3>
  • The amount of a liquid is often measured, and the % strength tells you how many parts by volume of the active ingredient are present.
  • 100 parts by volume are included in the total volume of the solution or liquid preparation.

<h3>How do you determine a solution's strength?</h3>

Mass of solute times strength of solution(g) Amount of the solution(L)

  • The amount of solute dissolved in grams per liter of the solution is used to determine the solution's strength.
  • It stands for the solution's potency or concentration.
  • It uses grams per liter to express.

To learn more about percentage strength visit:

brainly.com/question/14661341

#SPJ4

5 0
2 years ago
A toothpaste contains sodium fluoride (NaF) What percentage of Fluoride is present.(4cs)
MariettaO [177]

Answer:

45.2%

Explanation:

To calculate the percent of an element in a compound we divide the molar mass of the element by the compound and multiply that by 100

First lets find the molar mass of Fluoride

Looking at the periodic table Fluoride has a molecular mass of 18.998 g

Now we need to find the molecular mass of NaF

Looking at a periodic table, Sodium (Na) has a molecular mass of 22.990g and Fluoride has a molecular mass of 18.998 so NaF has a molecular mass of 22.990(1) + 18.998(1) = 41.988g

Now we divide the mass of fluoride by the mass of sodium fluoride and multiply that by 100 to find the percentage of fluoride that is present in NaF

Mass of Fluoride = 18.998g

Mass of Sodium Fluoride = 41.988g

Percentage of fluoride present in NaF = (18.998g / 41.988g) * 100 = 45.2%

7 0
3 years ago
99<br> 96<br> 040Zr<br> +<br> 42He<br> ----&gt;<br> + "42Mo
Ahat [919]

he mass defect of the helium nucleus ⁴He₂ is 0.030377 u

Further explanation

Mass defect means the difference between the mass of particles forming an atom with an atomic mass.

Δm = mass defect ( u )

mp = mass of proton ( u )

me = mass of electron ( u )

mn = mass of neutron ( u )

M = atomic mass ( u )

A = mass number

Z = atomic number

Let us now tackle the problem !

Given :

Unknown :

Δm = ?

Solution :

Learn more

Rutherford’s major achievements : brainly.com/question/1552732

Unit of radius of an atom : brainly.com/question/1968819

Fusion : brainly.com/question/11395223

Answer details

Grade: College

Subject: Physics

Chapter: Nuclear Physics

Keywords: Mass , Defect , Nucleon , Number , Atomic , Proton , Electron , Neutron

4 0
3 years ago
A metal cylinder is placed in a graduated cylinder which has been filled with water to the 70.0 mL mark. The water level rises t
OLga [1]
V= New mL displaced water - original old water that was already in the grad. cylinder basically 8.0 mL
3 0
3 years ago
Read 2 more answers
You are on an alien planet where the names for substances and the units of measures are very unfamiliar. Nonetheless, you obtain
____ [38]

6.9 Sleps 1. (8)(13) = 15 2. 104/15 = 15/15 3. 6.93333333 4. 6.9 Sleps

6 0
3 years ago
Read 2 more answers
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