How many grams are in 3.80 mol of sodium chloride (NaCl)?
Express your answer numerically in grams.
Windvailable Hintis

Answer:

It is the solution of a mixture of a weak base and a salt of this weak base with a strong acid.

Explanation:

Answer:

Which organelle is found in both plant and animal cells? Cell wall.

Explanation:

So option D) Cell wall is your answer.

Answer:

B Energy

Explanation:

it's not an object it is some type of radiation

Answer:

This statement is true

Answer:

C

Explanation:

Since they all are 2 mols worth, all you have to do is count the number of atoms in each molecule

H2SO4 contains 2 hydrogen 1 sulfur 4 oxygen                = 7 atoms

H2S      contains 2 hydrogen and 1 sulfur                          = 3 atoms

H3PO4 contains 3 hydrogens 1 phosphorus  4 oxygens = 8 atoms

HNO3   contains 1 hydrogen 1 nitrogen and 3 oxygens   = 5 atoms

You have the right answer.

Answer:

0.383 mole [tex]Cl_{2}[/tex]

Explanation:

Using dimensional analysis, we can find the number of moles of [tex]Cl_{2}[/tex] needed to react with 1.1 moles of [tex]F_{2}[/tex].

Answer:

2+2 kaszkqkq

Explanation:

Answer:

As a result of human activities, plastic impacts the envionment in negative way that leads to serious environmental danger.

Explanation:

When we don't throw away plastic materials correctly, it causes littering. Well, this can also lead to piles of that, meaning that it is spreading toxins. Littering may also lead to blockages in flowing streams, lakes, river, ground water, big bodies of water, and small bodies of water. This also can contribute to global warming because plastic are made from chemicals that come from the production of fuels like oil, gas, coal and possible more.

Answer:

1.79 L

Explanation:

Step 1: Given data

Step 2: Convert T₁ to Kelvin

We will use the following expression.

K = °C + 273.15

K = 25.0 °C + 273.15 = 298.2 K

Step 3: Calculate the final volume of the gas

We will use the combined gas law.

P₁ × V₁ / T₁ = P₂ × V₂ / T₂

V₂ = P₁ × V₁ × T₂ / T₁ × P₂

V₂ = 745.0 mmHg × 2.00 L × 273 K / 298.2 K × 760.0 mmHg = 1.79 L

0.130 moles NH₃

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[Given] 7.85 × 10²² molecules NH₃

[Solve] moles NH₃

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

0.130355 moles NH₃ ≈ 0.130 moles NH₃

Answer:

Liquid Solids are rigid due to strong glass of attraction between the particles.

Explanation:

Answer:

Lead

Explanation:

Answer:

They have a definite shape and volume. The particles are very close and compacted together.

Explanation:

Answer:

At pH 4.85 , 76% of [tex]Mg^2^+[/tex]will be precipitated as the hydroxide salt.

Explanation:

When 76% of [tex]Mg^{2}^{+}[/tex] has precipitated out , 24% remains out.

Given= Ksp for [tex]Mg(OH_2) = 8.9\times10^-^1^2[/tex]

(Here , ksp is the molar solubility )

Now ,

   [tex][Mg^{2}^{+}] =\frac{24}{100}\times 0.052[/tex]

             = [tex]1.248\times10^-^2[/tex]

   [tex]Mg(OH)_2<=> Mg^2^+ + 2OH^-[/tex]

We , know the formula to find out the ksp ,

Given formula is -

     [tex]Ksp = [Mg^2^+][OH^-][/tex]

Now , putting the given values ,

[tex]8.9\times 10^-^1^2= 1.248\times10^-^2\times[OH]^-[/tex]

    [tex][OH]^- = 7.131\times 10^-^1^0[/tex]

Now , calculating the pH,

[tex][H^+]=\frac{Kw}{[OH]^-}[/tex] ( where Kw is the ionic product of the water)

          [tex]= \frac{10^-^1^4}{7.131\times10^-^1^0}[/tex]

             [tex]1.402\times10^-^5[/tex]

 [tex]pH=-Log[H^+][/tex]

          [tex]-Log[1.402\times10^-^5][/tex]

         = 4.85

Therefore , the pH to be precipitated is 4.85

pH measures the acidic or the basic concentration of the substance in a solution. At pH 4.85, the magnesium ion will precipitate as its hydroxide salt.

The potential of hydrogen is calculated as the negative log of the hydrogen ion concentration in the aqueous solution.

The balanced reaction is shown as,

[tex]\rm Mg(OH_{2}) \Leftrightarrow Mg^{2+} + 2OH^{-}[/tex]

If, 76% magnesium precipitates then 24% will remain in. The concentration of the remaining magnesium will be,

[tex]\begin{aligned} \rm [Mg^{2+}] &= \dfrac{24}{100}\times 0.052\\\\&= 1.248 \times 10^{-2}\end{aligned}[/tex]

The molar solubility is calculated as:

[tex]\begin{aligned} \rm Ksp &= \rm [Mg^{2+}][OH^{-}]\\\\8.9 \times 10^{-12} &= 1.248 \times 10^{-2} \times \rm [OH^{-}]\\\\&= 7.13 \times 10^{-10}\end{aligned}[/tex]

The concentration of the hydrogen ions is calculated as:

[tex]\begin{aligned} \rm [H^{+}] &= \rm \dfrac{Kw}{[OH^{-}]}\\\\&= \dfrac{10^{-14}}{ 7.13 \times 10^{-10}}\\\\&= 1.402 \times 10^{-5}\end{aligned}[/tex]

Further, pH is calculated as:

[tex]\begin{aligned} \rm pH &=\rm -log [H^{+}]\\\\&= -\rm log [1.402 \times 10^{-5}]\\\\&= 4.85\end{aligned}[/tex]

Therefore, at 4.85 pH the magnesium ion will precipitate out as hydroxide salt.

Learn more about pH and precipitation here:

https://brainly.com/question/15584956

Explanation:

The Answer Is

That The Coral Releases Its Colours And Becomes Pale White

Answer:

Thermochemical Equation

Thermochemistry

Thermochemical Equation

Define thermochemical equation.

Define heat of reaction.

What is the best way to heat a house?

Heating a home is becoming more and more expensive. Do we use gas, oil, electricity, wood? Part of the decision is based on which fuel will provide the highest amount of energy release when burned. Studies of thermochemistry can be very useful in getting reliable information for making these important choices.

a gas furnace

Thermochemical Equation

When methane gas is combusted, heat is released, making the reaction exothermic. Specifically, the combustion of 1 mol of methane releases 890.4 kilojoules of heat energy. This information can be shown as part of the balanced equation.

text{CH}_4(g)+2text{O}_2(g) rightarrow text{CO}_2(g)+2text{H}_2text{O}(l)+890.4 text{kJ}

The equation tells us that 1 mol of methane combines with 2 mol of oxygen to produce 1 mol of carbon dioxide and 2 mol of water. In the process, 890.4 kJ is released and so it is written as a product of the reaction. A thermochemical equation is a chemical equation that includes the enthalpy change of the reaction. The process in the above thermochemical equation can be shown visually in the Figure below .

Answer:

sorry

Explanation:

Answer:

copper metal and steel metak

Answer:

Every element to the left of the staircase on the Periodic Table is a metal, excluding Hydrogen, and everything to the right of that staircase is a non-metal.

Explanation:

Answer:

#2 water freezes at 32F ,0 °C ,273.2K

Answer:

1. True

2. True

3.True

4. False

5. True

6. False

7.True

Explanation:

Answer: physical

Explanation:

The salt and garlic can still be easily separated. No new substance was formed.

Answer:

i

Explanation:

Answer:

Ca(OH)2 + H2

Explanation:

hope this helps

Answer:

cells -> tissues -> organs -> organ system

Answer:

Cells > tissues > Organs > Organs Systems

Explanation:

tissues are made of a group of cells

a specific organ is made up of a geoup of specific type of tissues

and a group of organs make up the organs system

Answer:

Birds

Explanation: They are both mammals

Answer:

birds

Explanation:

Answer:

450 mL

Explanation:

First we calculate how many NaCl moles would there be in 1.5 L of a 0.75 M solution, using the definition of molarity:

Once again using the definition of molarity, we now calculate how many liters of a 2.5 M solution would have 1.125 moles:

Finally we convert 0.45 liters to mL: