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3 years ago

PLEASE HELP ME ASAP

Chemistry

1 answer:

anastassius [24]3 years ago

3 0

1 mole N2/ 2 moles NH3

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What is the quantity of atoms in KMnO4 ?

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You wish to make 250. mL of 0.20 M KCl from a stock solution of 1.5 M KCl and DI water.

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The question requires us to use the dilution formula $M_iV_i=M_fV_f$ , where $M_i$ and $V_i$ are the stock concentration and volume respectively, then $M_f$ and $V_f$ are the dilute concentration and volume respectively.

a. $C_s_t_o_c_k$ = 1.5 M KCI, $C_d_i_l_u_t_e$ =0.20M KCl, $V_d_i_l_u_t_e$ =250ml KCl

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To prepare the solution 33.3ml of 1.5M KCl is diluted to a total final volume of 250ml.

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The label shown above contains information about some harmful effects of acetone.A group of students plans to use acetone to rin

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Heating water with an open flame

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Remember, we are told in the label that Acetone is a "flammable liquid and vapor." Being flammable means the substance can easily be set on fire, and we would expect an open flame from heating water to trigger an explosion (a disaster) in which the Acetone is set on fire causing life-threatening dangers to the second group of students.

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