5 Answered Questions for the topic #Chemistry #Lab #HELP

#chemistry #lab #help

09/04/18

helpppp chemlstry
QUESTION 1Imagine a solution composed of 31.5 g of NaCl dissolved in 500 mL of H 2O. What is the molarity of the solution? Report your answer to 3 significant figures
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05/31/18

I can’t inderstand a Chemistry experiment. There is a half cell with Copper sulfate pentahydrate and two electrodes of copper and zinc. How can voltage pass?
We did the experiment without a battery and we checked the voltage connecting the two electrodes with a voltmeter and worked. I can’t figure out how can it work without a battery supply because it... more
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#chemistry #lab #help

05/30/18

how many grams of Ag will be produced from 5.00g of Cu and 1.00g of AgNO3
Cu+2AgNO3→2Ag+Cu(NO3)2
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03/22/18

Two solutions are combined, 100 ml of 1 M NaOH and 100 ml of 1.5 M H2SO4. What is leftover, H+ or OH-, and what is its concentration in the solution?
The balanced equation is 2NaOH + H2SO4 -> Na2SO4 + 2 H20
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01/18/18

Clausius Clapeyron
Hydrazine N2H4 has a normal boiling point of 113.5 Celsius and a critical point at 380.00 Celsius and 145.4 atm. Estimate the vapor pressure of hydrazine at 75.0 Celsiu. ( Treat the critical point... more
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