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3 years ago

What does molarity measure the concentration of?

Chemistry

2 answers:

Shalnov [3]3 years ago

7 0

C. The relative amounts of atoms in a molecule

MAXImum [283]3 years ago

4 0

The correct answer would be D. The amount of substance dissolved in a liquid

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Is MgC2 an organic, acid, inorganic compound?

mrs_skeptik [129]

Magnesium oxalate is an inorganic compund comprising a magnesium cation with a 2+ charge bonded to an oxalate anion.

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4 years ago

Calculate the reaction quotient Qp for the following redox reaction: 14H+ + Cr2O72- + 6Cl- ----> 2Cr3+ + 3Cl2 + 7H2O The reac

stich3 [128]

Answer:

Value of $Q_{p}$ for the given redox reaction is $1.0\times 10^{-8}$

Explanation:

Redox reaction with states of species:

$14H^{+}(aq.)+Cr_{2}O_{7}^{2-}(aq.)+6Cl^{-}(aq.)\rightarrow 2Cr^{3+}(aq.)+3Cl_{2}(g)+7H_{2}O(l)$

Reaction quotient for this redox reaction:

$Q_{p}=\frac{[Cr^{3+}]^{2}.P_{Cl_{2}}^{3}}{[H^{+}]^{14}.[Cr_{2}O_{7}^{2-}].[Cl^{-}]^{6}}$

Species inside third braket represent concentration in molarity, P represent pressure in atm and concentration of $H_{2}O$ is taken as 1 due to the fact that $H_{2}O$ is a pure liquid.

$pH=-log[H^{+}]$

So, $[H^{+}]=10^{-pH}$

Plug in all the given values in the equation of $Q_{p}$ :

$Q_{p}=\frac{(0.10)^{2}\times (0.010)^{3}}{(10^{-0.0})^{14}\times (1.0)\times (1.0)^{6}}=1.0\times 10^{-8}$

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3 years ago

Mass (g) 4.25 g 7.48 g Initial Volume of Graduated Cylinder (mL) 7 mL 6 mL Final Volume of Graduated Cylinder (mL) 7.5 mL 7 Obje

nata0808 [166]

Answer:

A table was attached to the question

Explanation:

The step by step calculation is as shown

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4 years ago

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4 years ago