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
Lesechka [4]
3 years ago
9

Ca(OH)2 + 2HNO3 -> Ca(NO3)2+ 2H2O How many moles nitric acid is needed to make 22.8 g of water?

Chemistry
2 answers:
inna [77]3 years ago
4 0

Hey there!:

Molar mass:

HNO3 = 63.01 g/mol

H2O = 18.01 g/mol

By the stoichiometry of the reaction:

Ca(OH)2 + 2HNO3 -> Ca(NO3)2+ 2H2O

( 2 * 63.01 ) g HNO3 ---------------  ( 2 * 18.01  ) g H2O

mass of HNO3 ---------------------- 22.8 g H2O

mass of HNO3 =  ( 22.8 * 2 * 63.01 ) / (2 * 18.01 )

mass of HNO3 = 2873.256 / 36.02

mass of HNO3 = 79.768 g

Therefore:

1 mole HNO3 ------------------ 63.01 g

moles HNO3 ------------------ 79.768 g

moles HNO3 = ( 79.768 * 1 ) /  ( 63.01 )

moles HNO3 =  79.768 / 63.01

=> 1.265 moles of HNO3

Hope that helps!

spayn [35]3 years ago
3 0

Answer:

1.27 mol HNO₃

Explanation:

We know we will need a balanced chemical equation with masses, moles, and molar masses.

1. Gather all the information in one place:

M_r:                                                           18.02

          Ca(OH)₂ + 2HNO₃ ⟶ Ca(NO₃)₂ + 2H₂O

m/g:                                                             22.8  

2. Calculate the moles of H₂O

Moles of H₂O = 22.8 g H₂O × (1 mol H₂O/18.02 g H₂O)

                      = 1.265 mol H₂O

3. Calculate the moles of HNO₃

The molar ratio is 2 mol HNO₃/2 mol H₂O.

Moles of HNO₃ = 1.265 mol H₂O × (2 mol HNO₃/2 mol H₂O)

                         = 1.27 mol HNO₃

You might be interested in
What is the total number of strontium and phosphate ions you have added to your solution after two or three shakes? why are ther
Brrunno [24]

<span>Assuming that there are 36 strontium and 24 phosphate, there aren’t any equal cations and anoins because in theory only one ionic bond is formed by a strontium with each phosphate ion. To the point that a cation will eventually have an excess.</span>

4 0
3 years ago
What is maximum mass of carbohydrate in a 6-oz serving of diet soda that contains less than 1 Calorie per can if the average num
masya89 [10]

Answer:

0.24 g

Explanation:

Given that:

The average number of the calories for the carbohydrates = 4.1 calorie / g

Also,

6 - oz serving of the diet soda contains less than 1 calorie per can

So,

Maximum mass of carbohydrate = Maximum calorie / Average number of the calories for the carbohydrates

The maximum of the calorie can be 1 calorie per can

So,

<u>Maximum mass of carbohydrate = 1 calorie / 4.1 calorie / g = 0.24 g</u>

3 0
3 years ago
Question 24 (1 point)
aleksley [76]

Answer:

Explanation:

Idk

4 0
3 years ago
What two positions would the moon be when we have the lowest tidal range?
Shkiper50 [21]

Answer:

Quarter and half moons

Explanation:

7 0
2 years ago
HELP ME PLEASE!
ale4655 [162]
1) 180 days. 24 hours in a day. 60 minutes in an hour. 24X60=1440. Then, take that by the days: 180. 180X1440=259,200 minutes in 180 days.

2) One English ton is 2,240 pounds. There are approximately 453.6 grams in one pound. 1.8X10^-4= .00018(2240)=.4032 TONS. To convert to pounds: .4032(2240)=903.168. To convert that to grams, multiply by the number of grams in a pound. 453.6(903.168)=409,677 grams. I apologize if I misunderstood your question (your 1.80X10-4 Tons was confusing)

3)First of all, figure out how many years 62 months is. The closest divisible is 60, which would be 5 years. So, first let's take care of the 5 years. Multiply it by the number of minutes in a year to start. 525,600(5)=2,628,000 minutes. Then multiply by 60 to get seconds: 2,628,000(60)= 157,680,000. Now, DON'T FORGET the other two months! Assuming that they are normal months (not February), they would equal 61 days (one 31 days, the other 30). The seconds in a day are 24x60x60=8,400. Multiply that by your number of days. 8,400(61)=5,270,400. DON'T FORGET TO ADD THEM TOGETHER!!! Add your two months and your 5 years: 157,680,000+5,270,400= 162,950,400 seconds!
5 0
2 years ago
Other questions:
  • Ice is less dense than water because of which type of bond? metallic nonpolar covalent ionic hydrogen
    14·2 answers
  • Which of the following statements is true?
    10·1 answer
  • What is the chemical formula for the ionic compound calcium chloride?
    13·2 answers
  • PLEASE HELP 30 POINTS
    6·1 answer
  • If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? (205)
    14·1 answer
  • Jumping on a cemented floor is more pain full than a sandy flour,why​
    15·1 answer
  • The Great Plains are also referred to as____.
    13·2 answers
  • Solve the following problem and select the correct answer: (4.5 x103)(3.5 x102)
    7·1 answer
  • 2-81) When a hydrocarbon fuel is burned, almost all of the carbon in the fuel burns completely to form CO2 (carbon dioxide), whi
    12·1 answer
  • What measurement is the radius of the atom?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!