When equation decays in part of the uranium decay series, there are two pathways, one of alpha emission and one of beta emission. When equation emits a beta particle, what is the product?

Answer:

[tex]\boxed {\boxed {\sf 38.11 \ L}}[/tex]

Explanation:

To find the volume, we need to convert grams to moles, then moles to liters.

We convert grams to moles using the molar mass. This is the mass of 1 mole of a substance. It is the same as the atomic mass found on the Periodic Table, but the units are grams per mole (not atomic mass units).

We have the compound carbon dioxide or CO₂. Look up the molar masses of the individual elements.

Notice that oxygen has a subscript of 2, so there are 2 atoms in each molecule. We have to multiply oxygen's molar mass by 2 before adding carbon's.

Use this value as a ratio.

[tex]\frac {44.009 \ g\ CO_2}{1 \ mol \ CO_2}[/tex]

Multiply by the given number of grams: 74.87

[tex]74.87 \ g\ CO_2*\frac {44.009 \ g\ CO_2}{1 \ mol \ CO_2}[/tex]

Flip the ratio so the units of grams cancel.

[tex]74.87 \ g\ CO_2*\frac {1 \ mol \ CO_2}{44.009 \ g\ CO_2}[/tex]

[tex]74.87 *\frac {1 \ mol \ CO_2}{44.009 }[/tex]

[tex]{74.87 \ mol \ CO_2}{44.009 } = 1.701242928 \ mol \ CO_2[/tex]

Any gas at standard temperature and pressure (STP) has a volume of 22.4 liters per mole.

[tex]\frac {22.4 \ L}{1 \ mol \ CO_2}[/tex]

Multiply by the number of moles we calculated.

[tex]1.701242928 \ mol \ CO_2*\frac {22.4 \ L}{1 \ mol \ CO_2}[/tex]

The units of moles cancel.

[tex]1.701242928 *\frac {22.4 \ L}{1 }[/tex]

[tex]1.701242928 *{22.4 \ L}= 38.10784158 \ L[/tex]

The original measurement has 4 significant figures, so our answer must have the same. For the number we calculated, that is the hundredth place.

The 7 tells us to round the 0 10 a 1.

[tex]38.11 \ L[/tex]

Answer:

[tex][H^+]=1.78x10^{-8}M[/tex]

Explanation:

Hello there!

In this case, according to the given information about the pH, it is firstly necessary for us to remember that the pH is defined as the potential of the hydrogen ions in the solution and the concentration of those ions represents how many of them are present in the solution; in such a way, it is possible for us use:

[tex]pH=-log([H^+])[/tex]

Whereas the concentration of hydrogen ions can be calculated as follows:

[tex][H^+]=10^{-pH}[/tex]

So we plug in the given pH to obtain:

[tex][H^+]=10^{-7.75}=1.78x10^{-8}M[/tex]

Regards!

Answer: Formula:

pH=−log[H

+

]

when pH=4

[H

+

]=10

−pH

=10

−4

when pH=2

[H

+

]=10

−pH

=10

−2

Answer:

[tex]M_{acid}=0.114M[/tex]

Explanation:

Hello there!

In this case, according to the given information, it is possible for us to firstly write the chemical equation whereby sulfuric acid is titrated with sodium hydroxide:

[tex]H_2SO_4+2NaOH\rightarrow Na_2SO_4+2H_2O[/tex]

Whereas the mole ratio of acid to base is 1:2 and therefore, the relationship between the volumes and molarities is:

[tex]2M_{acid}V_{acid}=M_{base}V_{base}[/tex]

Thus, we solve for the required molar concentration of the acid as shown below:

[tex]M_{acid}=\frac{M_{base}V_{base}}{2V_{acid}} \\\\M_{acid}=\frac{0.100M*45.65mL}{2*20.00mL}\\\\M_{acid}=0.114M[/tex]

Regards!

Answer:

Need to find moles NaCl.

526 grams NaCl (1 mole NaCl/58.44 grams)

= 9.0 moles NaCl

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

now,

Molarity = moles of solute/Liters of solution

or, for our purposes

Liters of solution = moles of solute/Molarity

Liters of solution = 9.0 moles NaCl/3.0 M

= 3.0 liters in volume

Answer:

100 g

Explanation:

Primero hay que calcular el número requerido de moles de NaOH, usando la definición de molaridad:

Ahora hay que convertir 2.5 moles de NaOH en gramos, usando su masa molecular:

Se requieren 100 gramos de NaOH.

Answer:

1

Explanation:

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Explanation:

It has a very long half-life.

The biggest problem with radioactive waste is that it has a very long half-life.

Answer:

Red, orange, yellow, green, blue, indigo, violet.

Explanation:

Answer:

Red, orange, yellow, green, blue, purple, violet.

Explanation:

Answer:

0.28 L

Explanation:

From the question given above, the following data were obtained:

Molarity of stock solution (M₁) = 18 M

Volume of diluted solution (V₂) = 2 L

Molarity of diluted solution (M₂) = 2.5 M

Volume of stock solution needed (V₁) =?

The volume of the stock solution needed can be obtained as follow:

M₁V₁ = M₂V₂

18 × V₁ = 2.5 × 2

18 × V₁ = 5

Divide both side by 18

V₁ = 5 / 18

V₁ = 0.28 L

Thus, the volume of the stock solution needed is 0.28 L

Answer:

The balloon would deflate

Explanation:

Answer: -property

Explanation: Transparency is a property  of matter.

Answer: property i think

Explanation:

Answer:

B. the resonance hybrid of all structures

Explanation:

The idea of resonance is used to explain bonding in compounds where a single structure does not fully account for all the bonding interactions in a molecule.

A number of equivalent structures are then used to show the nature of bonding in such a molecule. Such structures are called resonance structures or canonical structures. None of these structures individually offer a holistic explanation to the bonding interactions in the molecule under study.

However, a hybrid of all the canonical structures does explain the nature of bonding in the molecule.

Answer:

B. the resonance hybrid of all structures

Explanation:

When a species can be represented by two or more resonance structures, the actual representation of bonding in the species is given by: the resonance hybrid of all structures

Answer:

B

Explanation:

Double Covalent bonds or as you say "binary" bonds consists of 2 non-metals only, nothing else.

Hope this helps!

Answer:

Cell,tissue,organ,organ system, organism

Answer: V, Mn, Cr, Fe, Co

Explanation: all elements belong to 4th period. Ionization energy increases from

Left to right

Answer:

C

Explanation:

NP

Answer:

Look at explanation

Explanation:

fusion research became 'big science' in the 1970s. ... Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy.

Hope this helps!

Answer:

Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy.

Explanation:

Answer:

Average speed  = 68 mph

Explanation:

Given that,

Total distance traveled by the family, d = 340 miles

The family traveled 5 hours southeast.

We need to find her average speed. The speed of an object is given by the total distance covered divided by time taken. So,

[tex]v=\dfrac{d}{t}[/tex]

Put all the values,

[tex]v=\dfrac{340}{5}\\\\v=68\ mph[/tex]

So, her average speed is equal to 68 mph.

Answer:

QED,  EDQ,  DQE,  EQD,  DEQ,  QDE

Explanation:

The structure of all possible peptides that contain the given amino acids are :

QED,  EDQ,  DQE,  EQD,  DEQ,  QDE

where : Asp is represented by the letter code D

             Glu is represented by the letter code E

             Gln is represented by the letter code Q

Note : when three amino acids combine they form what is known as tripeptide ( i.e. contains two peptide linkages ) while a peptide linkage is been formed by the combination of a carboxyl group of an amino acid and the amino group of different amino acid

Answer:

A

Explanation:

Answer:

C

Explanation:

Pretty sure!

Explanation:

For the calibration process, use a weight that is 50% of the scale's capacity for accurate calibration. Weights less than 10% can result in inaccuracy. Make sure that the scale doesn't have any weights placed on it and nothing is rubbing against the scale or the platform.

Answer:

The right answer is "16.67 mL".

Explanation:

Given:

Molarity of NaOH,

[tex]M_1=6 \ M[/tex]

[tex]M_2=0.2 \ M[/tex]

Volume of NaOH,

[tex]V_1=V \ mL[/tex]

[tex]V_2=500 \ mL[/tex]

As we know, the equation,

⇒ [tex]M_1V_1=M_2V_2[/tex]

On putting the values, we get

⇒ [tex]6\times V=0.2\times 500[/tex]

⇒ [tex]6\times V=100[/tex]

⇒        [tex]V=\frac{100}{6}[/tex]

⇒            [tex]=16.67 \ mL[/tex]      

Answer:

D. Exothermic .

Explanation:

Hello there!

In this case, since the potential energy versus reaction progress diagrams are related to the energetic profile of a chemical reaction, we can set the initial point at the beginning of the reaction as the energy of the reactants and the final point as the energy of the products.

Next, since the change in the enthalpy of a reaction is quantified by subtracting products minus reactants, we can see that the products have less energy than the reactants and therefore ΔH for this reaction is negative, which matches with the definition of D. Exothermic  reaction.

Regards!

Answer:

look at explanation

Explanation:

the actual concentration of the NaOH solution has to be determined experimentally using a process called standardization. To standardize a base solution such as NaOH, an acid whose amount can be determined to a high degree of accuracy (called a primary standard) is needed.

Hope this helps!