Measurable
weights of NaCl are 1.52 g, and their real weights are 1.54 g. Could
you find the absolute error of measurable results?
( )
A: 0.02 g
B: -0.02 g
C: 0.2 g
D: -0.2 g
weights of NaCl are 1.52 g, and their real weights are 1.54 g. Could
you find the absolute error of measurable results?
( )
A: 0.02 g
B: -0.02 g
C: 0.2 g
D: -0.2 g
举一反三
- Measurable<br/>weights of NaCl are 1.52 g, and their real weights are 1.54 g. Could<br/>you find the relative errors of measurable results? ( ) A: 1.3<br/>% B: -1.3% C: -0.654% D: 0.654%
- Measurable weights of NaCl are 1.52g, and their real weights are 1.54g. Could you find the absolute error of measurable results? () A: 0.02 B: 0.2 C: -0.02 D: -0.2
- 2H2(g)+1/2I2(g)→HI(g)[br][/br]C、 H2(g)+I2(g)→2HI(g);[br][/br]D、[br][/br]H2(g)+1/2O2(g)→H2O(g)。
- H2(g)+O2(g)→2H2O(l)[br][/br]B、[br][/br]NO(g)+1/2 O2(g)→NO2(g)[br][/br]C、[br][/br]C(金刚石)→C(石墨)[br][/br]D、[br][/br]H2(g)+1/2 O2 (g)→H2O(g)
- 万分之一电子天平称量时,为保证称量误差≤0.1%,每次称取物质的量应不小于 A: 0.01 g B: 0.02 g C: 0.1 g D: 0.2 g