Question

Perform the following calculations to the correct number of significant figures. 1- [(1.9×106)÷(2.54×105)]+7.86 2-(570.15−237.0)÷5.1 3- (9013+43−9.4)×(8.6×106)...

Perform the following calculations to the correct number of significant figures.

1- [(1.9×106)÷(2.54×105)]+7.86

2-(570.15−237.0)÷5.1

3- (9013+43−9.4)×(8.6×106)

4-(3.00×2.4694)−2.09

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

1- [(1.9×106)÷(2.54×105)]+7.86 = [ 201.4 ÷ 266.7]+7.86
                                = 0.755 +7.86 = 8.615 four significant figures

2-(570.15−237.0)÷5.1            = 333.15÷ 5.1 = 65.32 four significant figures

3- (9013+43−9.4)×(8.6×106)      = 9046.6×911.6 = 8246880.56 = 8.246×10^6
                                = four significant figures

4-(3.00×2.4694)−2.09            = 7.4082-2.09 = 5.3182 five significant figures

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Perform the following calculations and report each answer with the correct number of significant figures. (For...
Perform the following calculations and report each answer with the correct number of significant figures. (For this problem – you have to show all the calculation steps – you can handwrite it on another piece of paper, take a picture of it, and submit it.) a) 62.8 x 34 b) 0.147/0.0066/0.012 c) 38 x 95 x 1.792 d) 15 - 0.15 - 0.6155 e) 8.78 x (0.0500/0.478) f) 140/7.68/0.014 g) 28.7 - 0.0483 h) (88.5 - 87.57)/45.13
1. Convert 215.3 C to F with correct number of significant figures 2. Convert 238 C...
1. Convert 215.3 C to F with correct number of significant figures 2. Convert 238 C to K with correct number of significant figures 3. 345 K to F wit correct number of significant figures
1. Express the answer in correct units and with correct number of significant figures: (2 *...
1. Express the answer in correct units and with correct number of significant figures: (2 * 10^3g + 7.191g) / (0.085cm^3 - 0.015cm^3) 2. Calculate the percent error for the following measurements: a.) The density of alchol (ethanol) is found to be 0.8046 g/mL (true value = 0.7980 g/mL). _____% b.) The mass of gold in an earring is analyzed to be 0.8453 g (true value = 0.8644 g). ______%
1) What is the H3O+ concentration to the correct number of significant figures for solutions with...
1) What is the H3O+ concentration to the correct number of significant figures for solutions with the following pH values. A) 9.0. B) 7.00 C) -0.30. D) 15.18. E) 2.63. F) 10.75 2)calculate the pH and the concentrations of all species present (H3O+, F-, HF, Cl, and OH-) in a solution that contains 0.10 M HF ( Ka= 3.5 * 10^-4 ) and 0.10 M HCl
Question 1 How many significant figures in the following measurement? 0.0021 Question 2 How many significant...
Question 1 How many significant figures in the following measurement? 0.0021 Question 2 How many significant figures in the following measurement? 3.505 Question 3 How many significant figures in the following measurement? 0.0320 Question 4 Add the two masses together and report the answer to correct significant figures. (Do not use scientific notation.) 12.011 + 1.01 = Question 5 Use the molar mass of carbon (12.011 g/mol) to calculate the moles in 5.0 g of carbon to correct significant figures....
For the following problems, give answers in the standard notation with the correct number of significant...
For the following problems, give answers in the standard notation with the correct number of significant figures. (1) 300 x 185      (2) 2.10/(5)(15)     (3) 0.886×3.6×6.1   (4) 3.9×0.257 / 8.68×20.0
1) How many significant figure are in the number 0.00150? Group of answer Choices: 5 2...
1) How many significant figure are in the number 0.00150? Group of answer Choices: 5 2 3 4 2) If the calculation 12.1202 - 0.10 is performed, what is the answer to the correct number of significant figures? Group of answer choices: 12.0202 12.02 12 12.0 3) Which measurement does not represent the same length as the others? Group of answer choices: 0.01 kilometers 10 meters 1000 centimeters 100 millimeters 4) Lead has a density of 11.34 g/cm3. If one...
How many significant figures do the following numbers contain? 1.001 4 Correct: Your answer is correct....
How many significant figures do the following numbers contain? 1.001 4 Correct: Your answer is correct. 3.45 3 Correct: Your answer is correct. 3.450 4 Correct: Your answer is correct. 0.01 1 Correct: Your answer is correct. .010 2 Correct: Your answer is correct. 1.230e-04 6 Incorrect: Your answer is incorrect. 0.11e-04 6 Incorrect: Your answer is incorrect. 1.233 + .1 4 Incorrect: Your answer is incorrect. 1.233*.1 4 Incorrect: Your answer is incorrect. 1.233/.01 4 Incorrect: Your answer is...
The first significant digit in any number must be​ 1, 2,​ 3, 4,​5, 6,​ 7, 8,...
The first significant digit in any number must be​ 1, 2,​ 3, 4,​5, 6,​ 7, 8, or 9. It was discovered that first digits do not occur with equal frequency. Probabilities of occurrence to the first digit in a number are shown in the accompanying table. The probability distribution is now known as​ Benford's Law. For​example, the following distribution represents the first digits in 232 allegedly fraudulent checks written to a bogus company by an employee attempting to embezzle funds...
The first significant digit in any number must be​ 1, 2,​ 3, 4,​ 5, 6,​ 7,...
The first significant digit in any number must be​ 1, 2,​ 3, 4,​ 5, 6,​ 7, 8, or 9. It was discovered that first digits do not occur with equal frequency. Probabilities of occurrence to the first digit in a number are shown in the accompanying table. The probability distribution is now known as​ Benford's Law. For​ example, the following distribution represents the first digits in 219 allegedly fraudulent checks written to a bogus company by an employee attempting to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT