Advertisements
Advertisements
Question
Solve the following question:
Express the following sum to the appropriate number of significant figures:
319.5 g − 20460 g − 0.0639 g − 45.642 g − 4.173 g
Solution
To perform an addition/subtraction operation, first, the numbers are written in such a way that they have the same exponent. The coefficients are then added/subtracted.
319.5 g − 20460 g − 0.0639 g − 45.642 g − 4.173 g
= − 20190.3789 g
= − 20190 g
Sum to the appropriate number of significant figures = − 20190 g
APPEARS IN
RELATED QUESTIONS
Choose the correct option:
The number of significant figures in 1.50 × 104 g is __________
Choose the correct option:
In Avogadro’s constant 6.022 × 1023 mol-1, the number of significant figures is ________
State the rules for deciding significant figures.
Why is accurate measurement crucial in science?
Solve the following question:
Round off the following quantity to two significant figures:
199 g
Solve the following question:
Round off the following quantity to three significant figures:
1.43 cm3
Solve the following question:
Round off the following quantity to three significant figures:
458 × 102 cm
Solve the following question:
Round off the following quantity to three significant figures:
643 cm2
Solve the following question:
Round off the following quantity to three significant figures:
6.398 × 10-3 km
Solve the following question:
Round off the following quantity to three significant figures:
0.0179 g
Solve the following question:
Round off the following quantity to three significant figures:
79,000 m
Solve the following question:
Round off the following quantity to three significant figures:
42,150
Solve the following question:
Round off the following quantity to three significant figures:
0.0041962 kg
Solve the following problem:
Express the following quantity in exponential terms.
0.0003498
Solve the following problem:
Express the following quantity in exponential terms.
70000.0
Solve the following problem:
Give the number of significant figures for the following.
1.89 × 10-4
Solve the following problem:
Express the given quantity with or without exponents as the case may be.
1.23 × 104
Solve the following problem:
Express the given quantity with or without exponents as the case may be.
1.89 × 10-4
Solve the following problem:
Write the following in exponential notation:
198.75
Solve the following problem:
Perform the following operation:
1.05 × 10−4 − 9.7 × 10−5
Define : Least count
Define: Least count
Define: Least count
Define : Least count
Define: Least count
Define Least count.
Define Least count
