6.7× 10³ g/mol*L ×(1Kg÷1000g) × (1L÷10dL)= 0.67
Answer:
874.89 mmHg
Explanation:
Using the combined gas law equation as follows:
P1V1/T1 = P2V2/T2
Where;
P1 = initial pressure (mmHg)
P2 = final pressure (mmHg)
V1 = initial volume (L)
V2 = final volume (L)
T1 = initial temperature (K)
T2 = final temperature (K)
Based on the information provided in this question;
P1 = 950 mm Hg
P2 = ?
V1 = 25 L
V2 = 30 L
T1 = 155°C = 155 + 273 = 428K
T2 = 200°C = 200 + 273 = 473K
Using P1V1/T1 = P2V2/T2
950 × 25/428 = P2 × 30/473
23750/428 = 30P2/473
55.49 = 0.063P2
P2 = 55.49 ÷ 0.063
P2 = 874.89 mmHg
Answer:
Percent error = 41%
Explanation:
Percent error:
Percent error is the difference between the measured value and actual value divided by actual value multiply by 100.
Given data:
Actual length of rope = 3.15 m
Measured length of rope = 1.85 m
Percent error = ?
Solution:
Formula:
Percent error = [measured value - actual value / actual value ] × 100
Now we will put the values in formula.
Percent error = [1.85 - 3.15 / 3.15 ] × 100
Percent error = [-1.3 /3.15 ] × 100
Percent error = -0.41 × 100
Percent error = 41%
The negative sign shows that measured value is less than the actual value but often results are reported in absolute value.
it was attributed to Alexander Fleming
