How many moles of I2 are in 8.23 moles of NaI ?

Answers

Answer 1

Answer: 4.12

Explanation:

we know that the given mol is 8.23 mol and they are 2NaI and I2 so we will write the equation like this.

8.23mol NaI x 1mol of I2 ÷ 2molNaI = 4.115≅ 4.12 mol of I2

we placed NaI at the bottom to cancel out with the 8.23 mol of NaI


Related Questions

1. If you have 5g of pennies how many dozen pennies do you have?

Answers

Answer:

15.69 dozen

Explanation:

Mass of penny = 5 g

Dozens of penny =..?

Next, we shall convert 5 g to gross. This can be obtained as follow:

3824 g = 1000 gross

Therefore,

5 g = 5 g × 1000 gross / 3824 g

5 g = 1.3075 gross

Thus, 5 g is equivalent to 1.3075 gross.

Finally, we convert 1.3075 gross to dozen. This can be obtained as follow:

1 gross = 12 dozen

Therefore,

1.3075 gross = 1.3075 gross × 12 dozen / 1 gross

1.3075 gross = 15.69 dozen

Thus, 5 g of penny is equivalent to 15.69 dozen

Which date has the longest daylight and the shortest darkness

Answers

The Winter Solstice.

What are the reactants in the following equation; NaOH + HCI --> NaCl + H2O
a)NaOH and HCI
b)HCI and H20
c) NaOH and NaCl
d)HCI and water​

Answers

The reactants are a) NaOh and HCl because they are on the left side of the equation/arrow :)

An atom of an element always contains

Answers

Answer:

An atom of an element always contain three fundamental particles called electrons(e-) , neutron ( n zero) and protons ( p+)

An atom of an element always contains a proton, electron and neutron.

What is an atom ?

Every atom is made up of a nucleus and one or more electrons that are attached to the nucleus. One or more protons and a number of neutrons make up the nucleus. Only the most common type of hydrogen is neutron-free. Every solid, liquid, gas, and plasma is made up of atoms that are either neutral or ionized.

But when it comes to the word atom, we must go back to 400 B.C. Greece. And Democritus, a brilliant philosopher, proposed the Greek word atomos, which means uncuttable.

Every atom is made up of a nucleus and one or more electrons that are attached to the nucleus. One or more protons and a number of neutrons make up the nucleus.

Thus, An atom of an element always contains a proton, electron and neutron.

To learn more about an atom, follow the link;

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If combining cation A with a +3 charge and anion X with a -3 charge, how would we write the compound?
O AX
O A3X3
O 3AX

Answers

Answer: it’s not A3X3

Explanation:

1. AX

For binary ionic compounds (ionic compounds that contain only two types of elements), the compounds are named by writing the name of the cation first followed by the name of the anion.If a cation A carries +3 charge and an anion X carries -3 charge, the compound so formed is AX. Since the charges gets cancelled out.For example: consider aluminum phosphate, aluminum carries +3 charge and phosphate carries -3 charge, the molecular formula for the compound will be AlPO₄.

Learn more:

brainly.com/question/11164440

How many moles of carbon dioxide are produced when 5.12 moles of glucose undergoes a combustion reaction?

Answers

Answer: 30.72 moles of [tex]CO_2[/tex] will be produced from 5.12 moles of glucose.

Explanation:

The balanced chemical equation for combustion of glucose is:

[tex]C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O[/tex]  

According to stoichiometry :

1 moles of glucose produce =  6 moles of [tex]CO_2[/tex]

Thus 5.12 moles of glucose produce =[tex]\frac{6}{1}\times 5.12=30.72moles[/tex]  of [tex]CO_2[/tex]

Thus 30.72 moles of [tex]CO_2[/tex] will be produced from 5.12 moles of glucose.

HELP PLEASE
What does the 2 mean in the formula of calcium nitrate? What does the 3
mean?

Answers

Answer:

Calcium nitrate is an inorganic compound with the chemical formula Ca(NO3)2. ... It is a nitrate salt of Calcium which contains calcium and nitrogen and oxygen. Calcium nitrate is a white or whitish-grey coloured granular solid which absorbs moisture from the air and is usually found as a tetrahydrate compound Ca(NO3)2.

Explanation:

A gas in the form of Bubbles is released is it a chemical change or a physical change

Answers

Answer:

The formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change. Another clue that a chemical change has occurred is the formation of a solid.

Explanation:

the answer is a chemical change!!

please help! Will give Brainliest!

Answers

the answer is c, hope you did good on whatever this is

Answer: the answer is c

Explanation:

also, is that canvas? sajdasds

similarities of ancient and modern philosophy​

Answers

A big difference is that for the Greeks philosophy was almost a fresh start. For us, doing philosophy cannot avoid taking into consideration what the great thinkers of the past have thought (or how they have thought).

Think of the of the body that we need in order to do things like walk, run etc. What systems are these? How do they work together so you can do these activities?

Answers

Answer:

I dont get this

Explanation:

A balloon occupies 175 cm at 25.0 C. What volume will it occupy at 42.5 °C?

Answers

175 cm³ instead of 175 cm.

Answer:

297.5 cm³

Explanation:

From the question;

Initial volume; V1 = 175 cm³

Initial temperature; T1 = 25°C

Final temperature; T2 = 42.5°C

From Charles law we can find the volume V2 from the equation;

V1/T1 = V2/T2

Making V2 the subject gives;

V2 = V1 × T2/T1

V2 = (175 × 42.5)/25

V2 = 297.5 cm³

PLEASE HELP MEEE THIS IS FOR a gradE AND IF I FAIL I FaIL THIS CLASs HELP ME

Answers

Answer:

stream

Explanation:

because a stream goes into a lake

Answer:

D) Stream

Explanation:

how many molecules of NaCl are in 32.5 G​

Answers

Answer  :32,5 g NaCl equal 0,556 moles.

Explanation:

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Give the products of this neutralisation reaction: Sulfuric acid + magnesium hydroxide

Answers

Magnesium combined with sulfuric acid produces magnesium sulfate and hydrogen gas.

Please help me with dis

Answers

Answer:

c

Explanation:

What is the percent composition of each element in the compound below:
CrPO4

Answers

Chromium phosphate pentahydrate

Can anyone help me with this algebraic expression

(4a+3b)² (3a-4b)²​

Answers

Answer:

=144a⁴−168a³b−239a²b²+168ab³+144b⁴

Explanation:

=144a⁴−168a³b−239a²b²+168ab³+144b⁴

Answer:

[tex](4a + 3b)(4a + 3b)(3a - 4b)(3a - 4b) \\ {16a}^{2} + 12ab + {9b}^{2} + 12ab + {9a}^{2} + 12ab + 12ab + {16b}^{2} \\ {16a}^{2} + {9a}^{2} + {9b}^{2} + {16b}^{2} + 12ab + 12ab + 12ab + 12ab \\ {25a}^{2} + {25b}^{2} + 48ab[/tex]

Can you bond 2 silicon atoms (Si) together to form a complete (real) molecule? Explain your reasoning

Answers

Answer: no

Explanation: because silicon cannot share over 3 bonds


Rubidium (Rb) has two isotopes. Using the data in the table below,
calculate the relative atomic mass of Rb. Give your answer to 3 significant
figures.

Answers

Answer:

85.6

Explanation:

(72 x 85) + (28 x 87)

-----------------------------

        100

= 85.56

= 85.6 (3 s.f.)

How are chemical reactions classified from an energy point of view?​

Answers

Answer:

normanie tykohoukdh    kjdj jj jjd

Explanation:

Name the following cycloalkane:

CH2CH2CH2CH3
A. butylcyclohexane
B. butylcyclopentane
C. propylcyclohexane

Answers

Answer:

The answer for this question is A. butylcyclohexane

Explanation:

Choose letter A

You welcome have a nice day.

Name of the given compound is butyl cyclohexane.

What are cyclo alkanes?

Cyclo alkanes are those organic compounds in which alkanes are present in the cyclic form.

In the nomenclature of cyclo alkane, name of the substitute is put before the name of the main ring. In the given structure number of carbons in ring is 6 so that given cycloalkane is cyclohexane and butyl group is attached as substitute. So name of the given compound is butyl cyclohexane.

Butyl cyclopentane is wrong because 6 carbons are present in ring.Propylcyclohexane is also wrong because 4 carbons are attached in the ring.

Hence name of the compound is butyl cyclohexane.

To know more about cycloalkanes, visit the below link:
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what is the meaning of flourish?

Answers

*Answer* : (of a person, animal, or other living organism) grow or develop in a healthy or vigorous way, especially as the result of a particularly favorable environment.

*For Example* :
"wild plants flourish on the banks of the lake"

the indicated gene codes for a protein made up of the amino acid

Answers

Answer:

N/A

Explanation:

Is this a true or false answer or.....?

Which of these forces does not act over a distance?
A. Friction
B. Electric
C. Magnetic
D. Gravitational

Answers

A. Friction is the answer

Measurements show that unknown compound X has the following composition:
element mass %
carbon 74.8%
hydrogen 25.1%
Write the empirical chemical formula of X. please help

Answers

X is carbon and Jess

the empirical chemical formula of X is CH4

Explanation:Step 1: Imagine you have a sample of compound weighing exactly . Multiply the mass of this sample by the mass percents to find the mass of each element in the sample

Step 2: Divide the mass of each element by the element's molar mass to find the moles of each element in the sample. Remember to round your answers to the correct number of significant digits.  

Step 3: Divide the moles of each element by the the smallest number of moles of any element to find the mole ratio of elements in the sample.  

Step 4: Multiply the mole ratio by the smallest whole number that changes it into a whole number ratio to find the atom ratio of elements in the sample.

Note that the result of each multiplication must equal a whole number only within measurement uncertainty.  

The measurement uncertainty in this calculation comes from the measurement uncertainty of the mass percents given in the question. The mass percents each have significant digits. That means each mass percent has some measurement uncertainty in the third significant digit, and only the first two significant digits can be considered completely reliable.  

In Step 1 you multiplied each mass percent by something with zero uncertainty (the exactly you assumed your sample weighed), in Step 2 you divided by a measurement with more than significant digits (the molar mass of the elements), and in Step 3 you divided by a measurement with the same number of significant digits (the least number of moles of any element in the compound). None of these steps added to the measurement uncertainty of your calculation.  

Therefore, the measurement uncertainty in the final result of all your calculations is determined by the measurement uncertainty in the original mass percents and will be in the third significant digit. That means the result of each of the final multiplication steps must equal a whole number only to within the first two significant digits.  

The whole numbers in the last column of the table are and .  

The chemical equation, Cr + Fe(NO3)2 → Fe + Cr(NO3)3, is an example of which type of reaction?

Answers

Answer:

Redox type

Explanation:

The reaction is:

2Cr +  3Fe(NO₃)₂ → 2Fe + 2Cr(NO₃)₃

2 moles of chromium can react to 3 moles of iron (II) nitrate in order to produce 2 moles of iron and 2 moles of chromium nitrate.

If we see oxidation state, we see that chromium changes from 0 to +3

Iron changed the oxidation state from +2 to 0

Remember that elements at ground state has 0, as oxidation state.

Iron is being reduced while chromium is oxidized. Then, the half reactions are:

Fe²⁺  +  2e⁻ ⇄  Fe    (Reduction)

Cr ⇄ Cr³⁺  +  3e⁻    (Oxidation)

When an element is being  reduced, while another is being oxidized, we are in prescence of a redox reaction.

A 2.00 g sample of ammonia (NH3) reacts with 4.00 g of oxygen (O2) according to the equation 4NH3+5O2→4NO+6H2O. How much excess reactant remains after the reaction has stopped ( knowing that NH3 is the excess reactant )?

Answers

Answer:

0.017 moles of ammonia remains after the reaction is stopped.

Explanation:

The reaction is:

4NH₃  +  5O₂  →  4NO  +  6H₂O

The first step is to convert the mass to moles, of each reactant:

2 g .  1mol/ 17g = 0.117 moles of NH₃

4 g . 1mol /32g = 0.125 moles of O₂

Ammonia, states the question, is the excess reactant so we can confirm it,

5 moles of oxygen need 4 moles of ammonia to react (by stoichiometry)

Then, 0.125 moles of oxygen may react to (0.125 . 4) / 5 = 0.1 moles

As we have 0.117 moles of ammonia and we need 0.1 moles.

(0.117 - 0.1) = 0.017 moles remains after the reaction is completed.

If we convert the moles to mass we have:

0.017 mol . 17 g /1mol = 0.289 g

What are the charges on ions of Group 1A, Group 3A (aluminum), and Group 5A?

Answers

Answer:

Group 1A: 1+

Group 3A: 3+

Group 5A: 3+ or 5+

Explanation:

If I had 50 graham cracker squares, 15 marshmallows, and 100 little
chocolate pieces, how many total s'mores could I make before I ran out of
ingredients?

Answers

The answer the the question is 22
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