Chemistry Answers

Explain this phrase: "likes dissolves like"

how many moles of PCl5 can be produced from 58.0 g of Cl2 (excess P4)

how many moles of PCl5 can be produced from 58.0 g of Cl2 (excess P4)

2. A 0.2719 g sample containing

a reacted with 20.00 mL of 0.2254 M HCI.

Given that HCI was excess. The excess HCI required exactly 20.00 mL of 0.1041

M NaOH to reach the end-point using phenolphthalein indicator.

Determine percentage purity of

3() +2

( ) -

2( )+2 20 (1)

The titration reaction is

a in the sample. The reaction involved is

( ) + NaOH(aq)

CI( ) + 2 (1)

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If 149.1 g of KCI is dissolved in water to make 500 ml solution, what is the molarity of the solution?

A copper metal with a mass of 7.56g cools from 65.1⁰C to 11.2⁰C. Find the heat released by the metal.

(10g/L)/(2g/mol)

NH3+O2=NO+H2O IF 25G NH3 is reacted with 20g O2, which is the limiting reagent? How much NO will be formed in the reaction?

A commercial bleach solution contains 3.62 mass percent NaOCl in water. calculate molality of the solution.