3 years ago

How close a measured value is to the value is to the accepted value

1 answer:

8 0

You could use percent error. Absolute | | of accepted value minus experimental value \ divided by accepted value multiply by 100 and that is your answer

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Which of the following is a statement of Hess's law?

attashe74 [19]

Answer:

Explanation:

the enthalpy of reaction is independent of the reaction path

7 0

3 years ago

“Enter the conjugate acids of no2- and no3-“

Rainbow [258]

Answer:

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3 years ago

How many grams of Mg(NO3)2 would be produced? please show how you got the answer

Len [333]

Answer:

148 grams of relative atomic mass

Explanation:

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nitrogen : 14

oxygen : 16

24 × 1

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3 years ago

zn (s) 2 hcl (aq) -----> zncl2 (aq) h2(g) if 520 ml of h2 is collected over water at 28oc and the atmospheric pressure is 1.0

nadya68 [22]

The Zn that is 1.33 g is used at the start of the reaction where f is 520 ml and h2 collected over water is 28oc and the atmospheric pressure is 1.0 atm.

Given If 520 ml of H2 is gathered over Wate at 28 diploma Celsius and the atmospheric strain is 1 ATM if vapour strain of wate at 28 diploma celsius is 28.three mmhg then the quantity of zn in grams taken at begin of the response is.

We recognise that

h * 2 = PT - P * h * 20 = 1atm - 0.037atm

= 0.963 atm

1 * h * 2 = Ph * 2V / R * T

= 0.963 atm x 0.520 L / 0.0821 L atm/

molK * 301

= 0.02 mol h2

= 0.02molZn

So 0.02 mol Zn x 65.39 g/mol

= 1.33 g Zn