3 years ago

How many atoms of phosphorus are in 4.90 mol of copper(II) phosphate?

Chemistry

1 answer:

Nutka1998 [239]3 years ago

8 0

There are 6.02214*10^23 molecules , I'm not so sure about it though.

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Assume that 8.5 L of iodine gas (I2) are produced at STP according to the following balanced equation:2KI(aq) + Cl2(

Aliun [14]

Answer: 0.3794 moles of Iodine gas are produced.

Explanation:

$2KI(aq)+Cl_2(
g)\rightarrow 2KCl(aq)+I_2$

Volume of iodine gas produced at STP =8.5 L

At STP, the 1 mol of gas occupies volume = 22.4 L

So, 8.5 L of volume will be occupied by: $\frac{1}{22.4 L}\times 8.5=0.3794 moles$

0.3794 moles of Iodine gas are produced.

5 0

3 years ago

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What is the formula for the compound formed by lead(lV) ions and chromate ions

nexus9112 [7]

Answer:

Lead (IV) Chromate: Pb(CrO4)2

Explanation:

8 0

3 years ago

Given the following, determine ΔG°f at 298 K for SnO. Sn(s) + SnO2(s) → 2SnO(s) ; ΔG° = 12.0 kJ at 298K

Virty [35]

Answer:

The value of change in Gibbs free energy for tin(II) oxide solid is -251.9 kJ/mol.

Explanation:

$Sn(s) + SnO_2(s)\rightarrow 2SnO(s), \Delta G_{f}^{o} = 12.0 kJ$

$\Delta G_{f,SnO_2}^{o}= -515.8kJ/mol$

$\Delta G_{f,Sn}^{o}= 0 kJ/mol$

$\Delta G_{f,SnO}^{o}=?$

$\Delta G_{f}^{o}=\sum ((\Delta G_{f}^{o})_ {products})-\sum ((\Delta G_{f}^{o})_ {reactants})$

$12.0 kJ=(2 mol\times \Delta G_{f,SnO}^{o})-(1mol\times 0 kJ/mol+1 mol\times -515.8 kJ/mol)$

$\Delta G_{f,SnO}^{o}=-251.9 kJ/mol$

The value of change in Gibbs free energy for tin(II) oxide solid is -251.9 kJ/mol.

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3 years ago

The chemistry lab is 0.3394km from the nurses office. How many feet is the distance?

nlexa [21]

Easy just convert it to feet the answer is <span>1113.51706 Feet

</span>

6 0

3 years ago

For maleic acid, hoocch=chcooh, ka1 = 1.42  10–2 and ka2 = 8.57  10–7 . what is the concentration of maleate ion (–oocch=chcoo

uranmaximum [27]

ANSWER

Find the attachment

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3 years ago

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