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Sav [38]
3 years ago
12

I need help with this! 1-4 please!

Chemistry
1 answer:
PolarNik [594]3 years ago
4 0

Answer:

1 =   1.203 L.

2 = 1.291 dg.

3 = 843.062 - 638.1848 = 204.8772

The answer consist of seven significant figures.

4= 123.0 × 8.43 = 1036.89

answer consist of six significant figures.

Explanation:

Q 1 = part 1

Convert the 1202.57120 mL into L

Both milliliter and litters are the unit of volume. Liter is larger unit while milliliter is the smaller unit. One liter is equal to the thousand milliliter. In order to convert the milliliter into liter we will divide the given value by thousand.

1202.57120  / 1000 = 1.2025712 L

By rounding the answer into four significant figures  1.203 L.

Q 1 = Part 2

Convert the 0.1290743 g into dg.

The gram and decigram are both the unit of mass. gram is larger unit decigram is smaller unit. one gram is equal to 10 dg. In order to convert the gram unto dg we will multiply the value with 10.

 0.1290743 × 10 =  1.290743 dg

By rounding the answer into four significant figures  1.291 dg.

Q 1 = part 3

843.062 - 638.1848 = 204.8772

The answer consist of seven significant figures. The zero between the 2 and 4 is also a significant. If we have to round the answer in four significant figures the answer will be 204. 9.

Q 1 = part 4

123.0 × 8.43 = 1036.89

answer consist of six significant figures. if we round the answer into four significant figures then answer will be 1037.

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