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2 years ago

12

Magnesium (24.30g) reacts with hydrogen chloride (xg) to produce hydrogen gas(2.04g) and magnesium chloride (96.90g). How much h

ydrogen chloride was used in the reaction

2 answers:

weqwewe [10]2 years ago

6 0

Answer:

Answer is 74.42 if you are on cK-12.

Explanation:

xz_007 [3.2K]2 years ago

5 0

Answer: 74.46

Explanation:

Is what I got, for ck12

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What is 8.3 x 10^4 in standard form

seraphim [82]

Explanation:

83,000 is 8.3x10^4 in standard form

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2 years ago

The chemical properties of calcium and strontium are similar because both

Feliz [49]

Answer:

Number of valence electrons

Explanation:

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2 years ago

Using Charles law if the volume of a gas is 5.0 L when the temperature is 5.0C what will the new volume be if the temperature is

Vikentia [17]

Answer:

The answer to your question is V2 = 5.09 l

Explanation:

Data

Volume 1 = V1 = 5.0 L

Temperature 1 = T1 = 5°C

Volume 2 = V2 = ?

Temperature 2 = T2 = 10°C

Formula (Charles law)

V1/T1 = V2/T2

-Solve for V2

V2 = V1T2 / T1

-Convert temperature to °K

T1 = 5 + 273 = 278°K

T2 = 10 + 273 = 283°K

-Substitution

V2 = (5)(283) / (278)

-Simplification

V2 = 1415 / 278

-Result

V2 = 5.09 l

4 0

2 years ago

A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis o

MAVERICK [17]

Answer : The value of $\Delta G_{rxn}$ is -49.6 kJ/mol

Explanation :

First we have to calculate the reaction quotient.

Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

The given balanced chemical reaction is,

$ATP(aq)+H_2O(l)\rightarrow ADP(aq)+HPO_4^{2-}(aq)$

The expression for reaction quotient will be :

$Q=\frac{[ADP][HPO_4^{2-}]}{[ATP]}$

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

Given:

$[ATP]$ = 5.0 mM

$[ADP]$ = 0.60 mM

$[HPO_4^{2-}]$ = 5.0 mM

Now put all the given values in this expression, we get

$Q=\frac{(0.60)\times (5.0)}{(5.0)}=0.60mM=0.60\times 10^{-3}M$

Now we have to calculate the value of $\Delta G_{rxn}$ .

The formula used for $\Delta G_{rxn}$ is:

$\Delta G_{rxn}=\Delta G^o+RT\ln Q$ ............(1)

where,

$\Delta G_{rxn}$ = Gibbs free energy for the reaction = ?

$\Delta G_^o$ = standard Gibbs free energy = -30.5 kJ/mol

R = gas constant = $8.314\times 10^{-3}kJ/mole.K$

T = temperature = $37.0^oC=273+37.0=310K$

Q = reaction quotient = $0.60\times 10^{-3}$

Now put all the given values in the above formula 1, we get:

$\Delta G_{rxn}=(-30.5kJ/mol)+[(8.314\times 10^{-3}kJ/mole.K)\times (310K)\times \ln (0.60\times 10^{-3})$

$\Delta G_{rxn}=-49.6kJ/mol$

Therefore, the value of $\Delta G_{rxn}$ is -49.6 kJ/mol

6 0

2 years ago

4. Think of the solids and liquids that you encounter every day. In what ways are solids and liquids similar? In what ways are t

Taya2010 [7]

Answer:

They both are the same thing which is water but they are just in different forms.

Explanation:

A solid is water that is frozen and a liquid is just water.

3 0

1 year ago