Answers
Answer:
-I dont have a calculator on me but I can explain to you how to do it and you can put it in your calculator
Explanation:
-First you have to balance the equation because its not balanced
4Na+2H2O —-> 4NaOH
-After you balance it you have to add up the grams of H2 gas,
-The mass of each element is measured in grams
- You find how many grams each element it by looking at the periodic table and looking at the number at the bottom, thats called the mass
- Afterward if the element mass you are looking for has a small number as its subscript, that means there is more than one, so you must add them together to get the correct amount of grams it has
1+1=2grams
-After that, you take that and convert it to moles
2grams x 1mole/(6.02^23)grams = (unknown) moles
-And finally you convert that answer from moles to liters
(Unknown) moles x 22.4 Liters / 1 mole = FINAL ANSWER
I hope this was helpful, I tried to break it down the best I could for you <3
Related Questions
Using a triple beam balance and a graduated cylinder, a student collected data on a sample of an element:Mass of sample = 18.9 gVolume of water = 30.0 mLVolume of water and sample = 35.0 mL..... using SigFig Rules *
Answers
The question is incomplete; the complete question is;
Using a triple beam balance and a graduated cylinder, a student collected data on a sample of an element:
Mass of sample = 18.9 g
Volume of water = 30.0 mL
Volume of water and sample = 35.0 mL
Calculate the density of the sample using sig figs.
Answer:
3.8 g/mL
Explanation:
Mass of sample = 18.9 g
Volume of water = 30.0 mL
Volume of water and sample = 35.0 mL
Volume of the sample = 35.0 mL – 30.0 mL = 5.0 mL
D = m/v
D = 18.9 g / 5.0 mL =3.8 g/mL
C + H2O → CO + H2
What is the starting substance?
Answers
Answer:
Explanation:
Carbon and water = carbon dioxide and hydrogen
What is the mass number of an atom containing 7 protons and 7 neutrons?
Answers
Answer:
14
Explanation:
Neutrons are neutral and if there are no electrons to cancel out the protons you add the neutrons and protons together
Determine the length of the object shown.
5.6 cm
5.60 cm
5.600 cm
6 cm
Answers
Answer: The length of the object is 5.6 cm.
Explanation:
10.What is the name of the smallest atom?
Answers
Answer:
The name of the smallest atom is Hydrogen
Explanation:
It's the first atom in the periodic table, meaning it has the least protons or electrions, I forgot.
Please Help!!
A researcher takes a 10 mL sample of HCl from a bottle and titrates it with NaOH. It was found that 22.4 mL of 0.25 M NaOH were required to reach the equivalence point. What is the concentration of the HCl in original bottle?
Answers
Answer : The concentration of the HCl in original bottle is 0.56 M.
Explanation :
According to neutralization law:
[tex]M_1V_1=M_2V_2[/tex]
where,
[tex]M_1[/tex] = concentration of HCl
[tex]M_2[/tex] = concentration of NaOH
[tex]V_1[/tex] = volume of HCl
[tex]V_2[/tex] = volume of NaOH
Given:
[tex]M_1[/tex] = ?
[tex]M_2[/tex] = 0.25 M
[tex]V_1[/tex] = 10 mL
[tex]V_2[/tex] = 22.4 mL
Now put all the given values in the above formula, we get:
[tex]M_1\times 10mL=0.25M\times 22.4mL[/tex]
[tex]M_1=0.56M[/tex]
Therefore, the concentration of the HCl in original bottle is 0.56 M.
Give reasons for the following:
1-The nuclear fuel that is used in a nuclear reactor should contain 92u235
2-enzymes are very important compounds
Please give a class 11-12 level explanation thank you
Answers
Answer:
kais#+2==€=
so?×¢ ×€✓($8;™+38$-?
What is the most common isotope of Titanium?
Answers
The correct answer would be 48 Ti
What is the first organic compound prepared in laboratory?
Answers
What is the first organic compound prepared in laboratory?
➪ Urea was the first organic compound which was synthesised from inorganic chemicals. Fredrich Wohler is known for the synthesis of Urea. He formed the compound with ammonium cyanate, an inorganic salt.
Answer:
Urea
Explanation:
The credit of invention goes to Fredrick wohler .He synthesized ammonium cyanate to Urea .It drawbacked the theory organic compounds can't be prepared artificially
tttt5566555tggf and I don't
Answers
Answer:
same bud same
Explanation:
tttt5566555tggf and I don't
Draw activation energy diagrams for the following reactions labeling reactants, products,
activation energy, activated complex, and enthalpy change.
a. 4Al + 30, 2A1,O, AH=-30J/mol
b. 24,0 H2H2 + O, AH=30J/mol
Answers
Answer:
i dont no
Explanation:
i need answer please
how many atoms it would take to make up the thickness of a banknote.
Answers
Answer:
Since one banknote has a thickness of about 0.1 millimeters, if all the banknotes produced in a year were stacked up, they would reach a height of approximately 300 kilometers, which is about 80 times the height of Mount Fuji.
what is the structure and function of carbohydrates
Answers
Answer:
Monosaccharides. Carbohydrates are the most abundant biomolecule on Earth. Living organisms use carbohydrates as accessible energy to fuel cellular reactions and for structural support inside cell walls. Cells attach carbohydrate molecules to proteins and lipids, modifying structures to enhance functionality.
Explanation:
A sample of 8.5 g NH3 on oxidation produces 4.5 g of NO. Calculate the percent yield.
Reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
Answers
Answer:
The answer is 30%
Uh yah I’ll give you the crown thingy! And extra points:)
Answers
has many layers
formed from material that was eroded
includes fine particles of sand
The enthalpy of solution (∆H) of NaNO₃ is 20.4 kJ/mol. If 6.10 g NaNO₃ is dissolved in enough water to make a 100.0 mL solution, what is the change in temperature (°C) of the solution? (The specific heat capacity of the solution is 4.184 J/g･°C and the density of the solution is 1.02 g/mL)
Answers
The enthalpy of solution is the heat evolved or absorbed in solution. From the calculations performed, the enthalpy of solution is 3.2°C.
What is is heat of solution?The term heat of solution refers to the heat evolved or absorbed when a substance is dissolved in water.
Number of moles of NaNO3 = 6.10 g/85 g/mol = 0.07 moles
Heat absorbed = 20.4 kJ/mol * 0.07 moles = 1.43 kJ
Mass of solution = 1.02 g/mL * 100 mL = 102 g
Mass of system = 102 g + 6.10 g = 108.1 g
Heat capacity of solution = 4.184 J/g･°C
From;
H = mcdT
1.43 * 10^3 J = 108.1 g * 4.184 J/g･°C * dT
dT = 1.43 * 10^3 J/108.1 g * 4.184 J/g･°C
dT = 3.2°C
Learn more about enthalpy of solution: https://brainly.com/question/4768494?
K2S and NaOH are soluble in water or not? Explain.
Answers
Answer:
Explanation:
Is k2s a soluble in water?
Potassium Sulfide is a moderately water and acid soluble Potassium source for uses compatible with sulfates.
odium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na⁺ and hydroxide anions OH⁻ .
A 6.2-L balloon at 55˚C and 615mm Hg is taken to the top of Mt. Everest (-35˚C and 400- mmHg). What is the size of the balloon?
Answers
Explanation:
wish I could help but I'm lost
Answer: 6.788
Explanation: Water expands 9% when frozen and if the baloon is filled with all 6.2-L then its just 9% of 6.2 which is 0.588 then add it toghether unless your asking something else becuase im not smart and I can't even divided. :p
Sodium 24 has a half life of 15 hours , how many hours is three half lives
Answers
Answer:
Explanation:
So, Total amount of time = 3 × ( Half - life of Sodium - 24 ) = (3 × 15 h) (3 × 15 h) = 45 h. So, 45 h is three half - lives .
Listed in the Item Bank are some key terms and expressions associated with the categories seen in the Venn Diagram. To find out more information about items, some have more details available when you click on them. Drag and drop each item onto the proper area of the diagram. If an item describes more than one category, be sure to place it in the overlapping space.
Answers
A Venn Diagram is a graphical tool that provides information about the relationship between things.
What is Venn Diagram?A Venn Diagram is a graphical illustration using circles to show the relationship between two or more things.
In a Venn Diagram, the items that two things share in common are represented by a region in which the two things intersect.
The items that are exclusive to each thing is shown in regions where the circles are separate.
Thus, a Venn Diagram provides information about the relationship between things.
Learn more about Venn Diagram at: https://brainly.com/question/1024798
3.2.2 Discuss TWO ways n which it can raise awareness
Answers
[tex]\huge\frak\red{Answer}[/tex]
[tex]\small\mathbb\green{they \: are \: two \: types \: of \: raise \: awareness}[/tex]
1) Throw an Event
2) Amp up Social Media
_____________________________________________
[tex]\small\mathbb\orange{hope \: it's \: helpful \: to \: you}[/tex]
Which type of stem supports trees and lives for several years?
leafy
herbaceous
woody
flowerin
Answers
Answer:
I am thinking it is woody based off of what I've seen and read.
Who is a army ( Stream dynamite)
Answers
STREAM DYNAMITEEE
Answer:
Me!!!
Explanation:
Family number in science
Answers
compare and contrast elements and compunds
Answers
Answer:
The similarity is that Elements and Compunds exist in stable form because of the bonds formed between their atoms. The difference is that an element is a material that consists of a single type of atom and a compound consists of two or more types of elements held together by covalent or ionic bonds.
Explanation: Google
Which is a redox reaction
Answers
Answer:
D
Explanation:
Which severe weather event is most likely to occur when glaciers melt at a faster than usual rate?
A. Floods
B. Hurricane
C. lighting
D. winter weather
Answers
Answer:
A -floods
Explanation:
When the Glaciers melt it causes water
Which object would likely have the least amount of wasted energy?
a hairdryer
a solar cell
a car engine
a hydroelectric dam
Answers
Answer:
The answer is solar cell.
Explanation:
It’s the smallest of the 4 choices, the smaller it is the less it wastes.
Answer:
Explanation:
solar cell
What is the number 0.0513 expressed in scientific notation?
Answers
Answer:
5.13x10>-2
Explanation:
Why is it important to always be yourself and not try to be like someone else?
Answers
Answer:
You Just Have To Be Yourself To Succeed
Your difference is a strength that you will have to learn to exploit to your advantage. Thus, you should not compare yourself to others because it is a behavior that can only slow you down in your progress. Indeed, everyone progresses at their own pace in life. Your unique and beautiful just the way you are, you don't have to change yourself because of people are judging you. You just have to be yourself!
Explanation: