\[\boxed{\text{6.53.}}\]
\[\textbf{а)}\ A \rightarrow 0,1\ кг;\ \]
\[H \rightarrow 0,25\ кг;\ \]
\[D \rightarrow 0,4\ кг;\]
\[B \rightarrow 0,45\ кг;\]
\[E \rightarrow 0,65\ кг;\ \]
\[G \rightarrow 0,8\ кг;\]
\[M \rightarrow 0,85\ кг;\]
\[F \rightarrow 0,95\ кг.\ \]
\[\textbf{б)}\ r \rightarrow {35,9}^{о}\ C;\ \]
\[b \rightarrow {36,5}^{о}\ C;\]
\[a \rightarrow {37,0}^{о}\ C;\]
\[c \rightarrow {37,7}^{о}\ C;\]
\[d \rightarrow {38,9}^{о}\ C;\]
\[n \rightarrow {39,1}^{о}\ C;\ \]
\[m \rightarrow {40,7}^{о}\text{\ C.}\text{\ \ \ }\]