1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kiruha [24]
3 years ago
12

Calculate the number of molecules in 6.00 moles h2s?.

Chemistry
2 answers:
leonid [27]3 years ago
6 0
Use the equation: Nm = M x Av
                             Nm = Moles x Avogadro constant
                             Nm = 6 x 6.02x10²³
                             Nm = <span>3.612x10</span>²⁴

so in six moles of H2S there are 3.612x10²⁴ molecules

hope that helps  
LenKa [72]3 years ago
5 0
To calculate the number of molecules in <span>6.00 moles of hydrogen sulfide, H2S, the equivalence factor used is Avogadro's number equal to (6.022 x 10^23 molecules/mole). The answer is 6</span>.00 moles of hydrogen sulfide * <span>(6.022 x 10^23 molecules/mole) equal to 3.61 x10^24 molecules.</span>
You might be interested in
What element is added to toothpaste and city water systems to help tooth decay?
siniylev [52]
<span>Fluoride is the element that is added to city water supplies and toothpastes to prevent tooth decay. According to research, fluoride helps to prevent tooth decay as it can reduce cavities by 24% and by boosting the production of saliva. Saliva helps to protect the tooth enamel by providing high levels of calcium and phosphate ions to the surface of the tooth.</span>
8 0
4 years ago
What do you think the sandwich represents, the atom or the molecule?
Gemiola [76]

Answer:

Molecule

Explanation:

Because, the combination of bread and veggies make it more likely to be a molecule.

7 0
3 years ago
Read 2 more answers
Carbon, hydrogen and ethane each burn exothermically in an excess of air. AHⓇ =-393.7 kJ mol. C(s) + O2(g) → CO2(g) H2(g) + % O2
Salsk061 [2.6K]

<u>Answer:</u> The \Delta H^o_{rxn} for the reaction is 51.8 kJ.

<u>Explanation:</u>

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

According to this law, the chemical equation is treated as ordinary algebraic expressions and can be added or subtracted to yield the required equation. This means that the enthalpy change of the overall reaction is equal to the sum of the enthalpy changes of the intermediate reactions.

The chemical equation for the reaction of carbon and water follows:

2C(s)+2H_2(g)\rightarrow C_2H_4(g) \Delta H^o_{rxn}=?

The intermediate balanced chemical reaction are:

(1) C(s)+O_2(g)\rightarrow CO_2(g)    \Delta H_1=-393.7kJ    ( × 2)

(2) H_2+\frac{1}{2}O_2(g)\rightarrow H_2O(l)    \Delta H_2=-285.9kJ     ( × 2)

(3) 2C_2H_4(s)+2O_2(g)\rightarrow 2CO_2(g)+2H_2O(l)    \Delta H_3=-1411kJ

The expression for enthalpy of the reaction follows:

\Delta H^o_{rxn}=[2\times \Delta H_1]+[2\times \Delta H_2]+[1\times (-\Delta H_3)]

Putting values in above equation, we get:

\Delta H^o_{rxn}=[(2\times (-393.7))+(2\times (-285.9))+(1\times -(-1411))]=51.8kJ

Hence, the \Delta H^o_{rxn} for the reaction is 51.8 kJ.

6 0
4 years ago
7)What mass of hydrogen gas is produced when 8.56grams of lithium reacts with water to also produce lithium
Gnom [1K]

i guess this is the answer .

3 0
2 years ago
A cupcake recipe designed to produce 18 cupcakes calls for 260 grams of
Vedmedyk [2.9K]

Answer:

317.7778 g

Explanation:

Given data:

Flour required for 18 cup cakes = 260 g

Flour required for 22 cup cakes = ?

Solution:

We will calculate the flour required for 1 cup cake.

260 g /18   = 14.4444 g

Fluor required for 22 cupcakes,

22× 14.4444 g = 317.7778 g

In short,

22 cupcake/18 cup cake×260 g = 317.7778 g

8 0
3 years ago
Other questions:
  • meteorologist preparing a talk about global warming compiled a list of weekly low temperatures (in degrees Fahrenheit) he observ
    7·1 answer
  • The initial temperature of a bomb calorimeter is 28.50°C. When a chemist carries out a reaction in this calorimeter, its tempera
    12·2 answers
  • A scientist should not let their research and study be influenced by _____. (can be more than one answer) ethnicity gender natio
    12·2 answers
  • I need help solving it. We are using the following formula <br> P1V1 over T1 = P2V2 over T2
    12·1 answer
  • HALPPPPPP MEH YALL<br> THANKSSSSSS
    6·2 answers
  • Please help
    7·1 answer
  • 10.0 gram sample of H20(l) at 23.0°C absorbs. 209 joules of heat. What is the final temperature of H20(l) sample?
    9·1 answer
  • A 151.6-g sample of a metal at 75.3°C is added to 151.6 g at 15.6°C. The temperature of the water rises to 18.9°C. Calculate the
    12·1 answer
  • I need help with this please! and thank you. if you don't know, don't comment please.
    6·1 answer
  • calculate the number of coulombs of positive charge in 250cm 3 of (neutral) water. (hint: a hydrogen atom contains one proton; a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!