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
spayn [35]
4 years ago
13

how many moles of barium hydroxide, Ba(OH2), would be required to react with 117 g hydrogen bromide, HBr?

Chemistry
2 answers:
Mariulka [41]4 years ago
7 0

Answer:

0.726

Explanation:

Kisachek [45]4 years ago
4 0
The moles of Ba(OH)2 that is  required  to react  with 117 HBr is calculated as  below

find the moles of HBr used
mass/  molar mass = 117 g/ 80.9 g/mol = 1.446  moles

write the reacting equation

Ba(OH)2 +  2 HBr =  BaBr2 + 2 H2O

by use of mole ratio of Ba(OH)2 : HBr  which is 1:2 the moles of Ba(OH)2 is therefore
= 1.446 moles x1/2 = 0.723  moles  of Ba(OH)2
You might be interested in
Identify the correct mole ratio for each substance. Sodium chloride (NaCl) Na:Cl = 1: Ammonium nitrate (NHNO) H:O = 4:
Norma-Jean [14]

<u>Answer:</u> The mole ratio of H : O in ammonium nitrate is 4 : 3.

<u>Explanation:</u>

We are given a compound named ammonium nitrate having formula NH_4NO_3

There are 3 elements in this compound which are nitrogen, hydrogen and oxygen.

To calculate the mole ratio, we write the ratio of their subscripts. For this compound, it is:

N:H:O::2:4:3

The mole ratio of H and O for this compound is 4 : 3.

4 0
3 years ago
Read 2 more answers
Which is an example of how people use nonrenewable energy resources?
Arturiano [62]

Answer:

i dont think its walking to school because that doesn't use any resources.

Explanation:

i think its driving a car because we use gasoline for that and for sailing we use the wind. hopefully that helps.

7 0
3 years ago
Describe how radioactive isotopes are used to treaat cancer​
stich3 [128]

Answer:

Radioisotope therapy is a procedure in which a liquid form of radiation is administered internally through infusion or injection. RIT's ultimate purpose is to treat cancerous cells with minimal damage to the normal surrounding tissue. These therapies are not normally the first approach used to fight a patient's cancer.

Explanation:

5 0
2 years ago
A reaction has a forward rate constant of 2.3 × 106 s-1 and an equilibrium constant of 4.0 × 108. what is the rate constant for
avanturin [10]
Answer is: 5,75·10⁻¹.
Kf = 2,3·10⁶ 1/s.
K = 4,0·10⁸ 1/s.
Kr = ?
Kf - <span>forward rate constant.
K - </span><span>equilibrium constant.
Kr - </span><span>reverse rate constant.
</span>Since both Kf and Kr are constants at a given temperature, their ratio is also a constant that is equal to the equilibrium constant K.<span>
K = Kf/Kr.
Kr = Kf/K = </span>2,3·10⁶ 1/s ÷ 4,0·10⁸ 1/s = 5,75·10⁻¹.

5 0
3 years ago
What is the chemical formula for a molecule of salt?
BARSIC [14]

Answer:

Su fórmula molecular es Na Cl y es el producto de la base hidróxido sódico (NaOH) y ácido clorhídrico, H Cl. En general, las sales son compuestos iónicos que forman cristales. Son generalmente solubles en agua, donde se separan los dos iones. Las sales típicas tienen un punto de fusión alto, baja dureza, y baja compresibilidad.

Explanation:

5 0
3 years ago
Other questions:
  • Which of the following types of energy equals the total energy of motion and position
    9·1 answer
  • You’re probably familiar with the sour taste of acidic lemon juice and the slippery feel of alkaline (basic) soap. In fact, thes
    15·1 answer
  • All substances are made from some 100 different types of atoms which combine with each other in various ways true or false
    10·1 answer
  • Which of the following describes a Brønsted-Lowry base?
    10·2 answers
  • A calorimeter contains 35.0 mLmL of water at 15.0 ∘C∘C . When 2.20 gg of XX (a substance with a molar mass of 56.0 g/molg/mol )
    9·1 answer
  • Shield volcanoes form from _______-viscosity lava; composite volcanoes form from _______-viscosity lava.
    10·1 answer
  • 7. Which statement correctly describes the density of Earth's mantle compared to the density of Earth's
    11·1 answer
  • Who is the intended audience?​
    6·2 answers
  • A piece of metal is cooled in a water calorimeter. This process increases the water temperature by 7.0°C. How much energy is los
    8·1 answer
  • Identify and describe the different forms of precipitation shown in the images.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!