If you’re measuring water in a graduated cylinder that’s marked off in mL
and it looks like the water level falls halfway in between the 1 and 2 mL
marks, how would you record the measurement? What if it looks like the
water level were right at the 1 mL mark? How would your measurements
change if your graduated cylinder was marked off by 10 mL instead of 1 mL?
Butane, ch3-ch2-ch2-ch3, is a hydrocarbon fuel used in lighters. how many moles of molecules are there in a 350. gram sample of butane
According to its nutrition label, orange soda contains 49g of sugar per 355 ml serving. if the density of the beverage is 1.043 g/ml, what is the percent sugar concentration in orange soda
The percent sugar concentration of orange soda is calculated by dividing the mass of the sugar by the total mass of the beverage and multiplying by 100. For a 355 mL serving of soda with a density of 1.043 g/mL and sugar content of 49g, the percent sugar concentration is approximately 13.24%.
Explanation:The question asks to calculate the percent sugar concentration in orange soda, given the amount of sugar and the volume and density of the soda. The mass of the beverage can be calculated by multiplying its volume by the density, and the percent concentration is then obtained by dividing the mass of sugar by the total mass of the solution and multiplying by 100.
To find the mass of the soda, we use the formula: mass = volume × density. So, for a 355 mL serving with a density of 1.043 g/mL, the mass of the soda is calculated as follows:
Mass of soda = 355 mL × 1.043 g/mL = 370.265 g
Next, we calculate the percent concentration of sugar:
Percent sugar concentration = (mass of sugar / total mass of the beverage) × 100
Percent sugar concentration = (49g / 370.265g) × 100
Percent sugar concentration ≈ 13.24%
Therefore, the percent sugar concentration of the orange soda is approximately 13.24%.
When a rock falls from outer space all the way to the groung, its called a?
what are the most common student injuries in the chemistry lab and how can they be prevented
A lily plant on a pond is an example of which food chain level
Final answer:
A lily plant on a pond is an example of a primary producer in a food chain.
Explanation:
In a food chain, the organisms are classified into different trophic levels based on their feeding habits. The first trophic level includes the primary producers, which are typically photosynthetic organisms like plants or phytoplankton. The organisms that consume the primary producers are known as primary consumers, and they belong to the second trophic level. The lily plant in a pond would be considered a primary producer, which is part of the first trophic level in the food chain.
A magma cools the first minerals to ____ are rich in iron, calcium and magnesium
I think the answer is form
When iron(III) nitrate dissolves in water, what ion is attracted to the oxygen atom of the water molecule? What ion is attracted to the hydrogen atoms?
A modern penny weighs 2.5 g but contains only 0.063 g of copper (cu). how many copper atoms are present in a modern penny?
Answer:
[tex]5.969\times 10^{20} atoms[/tex] are present in a modern penny.
Explanation:
Mass of copper in modern penny = 0.063 g
Moles of copper : n
[tex]n=\frac{0.063 g}{63.55 g/mol}=0.0009913 mole[/tex]
Number of copper atoms in 0.0009913 mole = n
[tex]N=n\times N_A[/tex]
[tex]N=0.0009913 mol\times 6.022\times 10^{23} mol^{-1}=5.969\times 10^{20} atoms[/tex]
There are 5.97×10²⁰ atoms of copper in the penny.
From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ atoms.
This implies that 1 mole of copper, Cu contains 6.02×10²³ atoms.
Recall:
1 mole of copper = 63.55 g
Thus,
63.55 g of Cu = 6.02×10²³ atomsFinally, we shall determine the number of atoms present in 0.063 g of copper, Cu. This can be obtained as follow:
63.55 g of Cu = 6.02×10²³ atoms
Therefore,
0.063 g of Cu = 0.063 × 6.02×10²³ / 63.55
0.063 g of Cu = 5.97×10²⁰ atomsThus, 0.063 g of Cu contains 5.97×10²⁰ atoms
Therefore, we can conclude that there are 5.97×10²⁰ atoms of copper in the penny.
Learn more: https://brainly.com/question/24655338
Does the reaction of a burning candle give off or absorb heat
List 3 sedimentary rock structures, and explain how they record geologic processes
You’ll soon make two pieces of ice with the approximate shapes shown in the image. Both pieces of ice have the same mass and volume. How are the two shapes different from one another?
Which of the following is a nonrenewable resource?
A. Gold
B. Carbon
C. River
D. Tree
In subatomic particles what changes and what remains the same in isotopes
Which particles in the gas phase are attracted with the weakest intermolecular forces? in water?
Answer:
Nitrogen in the gas phase is attracted by weaker inter-molecular forces.
Further details:
Nitrogen has London dispersion forces which have weak inter-molecular interactions.
London dispersion forces:
The London dispersion force is the feeblest inter-molecular force, and is a temporary attractive force that results when the electrons in two adjacent atoms positions that make the atoms form transitory dipoles. This force is sometimes called an induced dipole attraction. London forces are the attractive forces that root non-polar substances to reduce to liquids and to freeze into solids when the temperature is dropped adequately.
London force (fluctuating dipole–induced dipole), which rises due to the non-zero immediate dipole moments of all atoms and molecules is a type of weak inter-molecular interaction. Such polarization can be persuaded either by a polar fragment or by the repulsion of negatively charged electron clouds in non-polar molecules. Thus, London interactions are produced by accidental variations of electron compactness in an electron cloud. An atom with a large number of electrons will have a greater related London force than an atom with fewer electrons. The dispersion (London) force is the most significant constituent because all materials are polarizable, whereas Keesom and Debye forces need permanent dipoles. The London interaction is universal and is present in atom-atom interfaces as well. For numerous causes, London interactions (dispersion) have been deliberated relevant for interactions between macroscopic bodies in reduced systems.
Answer details:
Subject: Chemistry
Level: High school
Keywords:
• Nitrogen
• London dispersion forces
• Weak molecular attraction
Learn more to evaluate:
https://brainly.com/question/4997492
https://brainly.com/question/4010464
https://brainly.com/question/1754173
Will give BRAINLIEST!!!!!
Write an equation for the reaction if one occurs.
(a) Iron (III) with CuSO4 solution
(b) Copper (I) with FeSO4 solution
(c) Tin (IV) with Cu (NO3) 2 solution
An atom contains 3 protons, 4 neutrons, and 3 electrons. what is its mass number
1.50μm2. Convert this to square meters.
The density of iron is about blank times greater than water.
Iron's density is about 7.9 times greater than that of water. This is calculated by dividing the density of iron (7.9 g/cm³) by the density of water (1 g/cm³).
The density of iron is approximately 7.9 g/cm³, while the density of water is 1 g/cm³ under standard conditions. Therefore, to find how many times greater the density of iron is compared to water, you can perform a simple division: 7.9 g/cm³ (density of iron) divided by 1 g/cm³ (density of water).
This calculation reveals that iron is about 7.9 times denser than water.
When working through density problems, it's important to compare densities in the same units. Since the density of water is taken as a baseline of 1 g/cm³, it allows for an easy comparison with other substances.
In the case of iron, this substantial difference in density has practical implications, such as the fact that iron sinks in water and is used for constructions that require strength and weight, like rebar. This density also affects the speed of sound travel, as it moves faster through iron than through air because of iron's higher rigidity and density.
Explain why samples of platinum and copper can have the same extensive properties but not the same intensive properties
What changes occur at the molecular level when ice cream melts and forms a liquid?
Explanation:
It is known that before melting ice cream is present in a solid state so, its molecules are much closer due to which it has retained its shape.
But as its molecules absorb energy from the surroundings the they tend to gain kinetic energy. Due to this there will be increase in collision between its particles and they will move apart from each other. As a result, ice cream will start to melt.
Therefore, when ice cream melts and forms a liquid then molecules move away from each other at the molecular level.
The diameter of a human red blood cell is 0.000006m write this number using scientific notation a10b
A beaker contains a clear, colorless liquid. part a if it is water, how could you determine whether it contained dissolved table salt? do not taste it!
To determine if a beaker of clear, colorless liquid has dissolved salt, you can perform several tests such as a conductivity test, density comparison (float an egg), evaporation to observe residue, or a silver nitrate test to check for the presence of chloride ions.
Explanation:To determine whether a clear, colorless liquid in a beaker has dissolved table salt, one can't rely on sight, taste, or smell as salt solution is clear, odorless, and we want to avoid tasting it. However, one can utilize certain properties of salt when it's in a solution.
One such property is that a salt solution conducts electricity. This is due to the presence of ions in the solution formed when the salt, sodium chloride (NaCl), dissolves into sodium ions (Na+) and chloride ions (Cl-). You can perform a simple conductivity test. If the solution conducts electricity, it could signify the presence of table salt in the water.
Another method can be based on the principle of density. Salt water has a higher density than pure water. One way to use this difference is to float an egg in the solution. If an egg floats, there is a good chance the water contains salt because the salt increases the water's density, allowing the egg to float.
Evaporation is another method. By carefully evaporating the water, one would be left with any soluble substances that were present. If there are white, crystalline residues (which are characteristic of table salt), it indicates that the liquid contained dissolved table salt.
Lastly, a silver nitrate test could also be done. If you add a few drops of silver nitrate solution to the sample, and a white precipitate forms, this indicates the presence of chloride ions and hence, salt in the solution.
Learn more about Dissolved Salt Detection here:https://brainly.com/question/25269562
#SPJ12
Round 0.0952 km to 2 significant figures:
A: 0.09
B: 0.095
C: 0.1
Answer :
The correct answer is option B.
Explanation :
Significant figures : The figures in a number which express the value of magnitude of a quantity to a specific degree of accuracy is known as significant digits.
Given value = 0.0952
[tex]0.0952 km\approx 0.095 km[/tex]
'Zeros' before and after decimal point are insignificant. But when 'zeros' is coming between two numerals then it is count as significant.
What are the elements with atomic numbers from 58 to 71 in the periodic table called?
An automobile can travel 40.0 miles on one gallon of gasoline how many kilometers per liter is this
Answer: 17.04 km/L
Explanation:
Given: An automobile can travel 40.0 miles on one gallon of gasoline
That is 40 miles/ gallon
Now using the conversion factor :
1 mile = 1.61 km
Thus 40 miles =[tex]\frac{1.61}{1}\times 40=64.4km[/tex]
Alsousing the conversion factor
1 gallon = 3.78 L
Thus [tex]40miles/gallon[/tex] will be [tex]\frac{64.4km}{3.78L}=17.04km/L[/tex]
Thus the answer is 17.04 km/L.
Write a complete set of quantum numbers for the fifth electron added to a hydrogen ion (i.e., the fifth electron in any electron configuration).
Answer:
Explanation:
In atoms, there are a total of four quantum numbers: the principal quantum number (n), the orbital angular momentum quantum number (l), the magnetic quantum number (ml), and the electron spin quantum number (ms).
The Hydrogen ion has no electron to begin with, so upon adding five electrons, it's electronic configuration becomes;
Is2 2s2 2p1
The principal quantum number (n) = 2 (Second energy level)
The value of l is dependent on the principal quantum number n. Unlike n, the value of l can be zero. It can also be a positive integer, but it cannot be larger than one less than the principal quantum number (n-1):
Hence, l = 2-1 = 1
The magnetic quantum number ml determines the number of orbitals and their orientation within a subshell. Since ml must range from –l to +l, then ml can be: --1, 0, or 1.
Unlike n, l, and ml, the electron spin quantum number ms does not depend on another quantum number. It designates the direction of the electron spin and may have a spin of +1/2, represented by↑, or –1/2, represented by ↓
What happens when you put the wrong chemicals together.?
What is the group that does not receive the experimental treatment in an experiment?
When an atom combines chemically with another atom it either gains loses or shares?