Question

question 16 (1 point)
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convert 6400 ml to quarts, given 1 l = 1.0567 qt.
6.057 qt
6.763 qt
6.1 qt
6.8 qt
question 17 (1 point)
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of the following, select all that have 2 significant digits?
a) 6.40 g
b) 0.0070 cm
c) 4.0 gpa
d) 670 meters
e) 3.00 x 10³ j

Explanation:

(Question 16):

Step1: Convert mL to L

$6400\ \text{mL} = \frac{6400}{1000}\ \text{L} = 6.4\ \text{L}$

Step2: Convert L to quarts

$6.4\ \text{L} \times 1.0567\ \text{qt/L} = 6.76288\ \text{qt}$

Step3: Round to match options

Round $6.76288\ \text{qt}$ to 3 decimal places: $6.763\ \text{qt}$

(Question 17):

Step1: Analyze each option's sig figs

a) 6.40 g: 3 significant digits (trailing zero after decimal counts)
b) 0.0070 cm: 2 significant digits (leading zeros don't count, trailing zero after decimal counts)
c) 4.0 GPA: 2 significant digits (trailing zero after decimal counts)
d) 670 meters: 2 significant digits (trailing zero without decimal doesn't count)
e) $3.00 \times 10^3$ J: 3 significant digits (zeros after decimal in scientific notation count)

Answer:

Question 16: 6.763 qt
Question 17:
b) 0.0070 cm
c) 4.0 GPA
d) 670 meters