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gladu [14]
3 years ago
14

When do we classify a disease as epidemic

Chemistry
2 answers:
belka [17]3 years ago
7 0

Answer:

A disease is classifies as an epidemic when there is a sudden increase in cases or in their matter of spread.

Explanation:

djyliett [7]3 years ago
3 0

Explanation:

An epidemic (from Greek ἐπί epi "upon or above" and δῆμος demos "people") is the rapid spread of disease to a large number of people in a given population within a short period of time.

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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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