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2 years ago

6

When you multiply measurements, the answer should only have the same number of significant figures as the measurement with the _

____________ significant figures.

1 answer:

lisov135 [29]2 years ago

3 0

Answer: fewest

Explanation:

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If one wished to obtain 0.050 moles of isopentyl alcohol, how many milliliters should one obtain? Enter only the number to two s

KatRina [158]

Answer:

1100 millimeters

Explanation:

1 mole of isopentyl alcohol = 22.4L = 22.4×1000 mL = 22,400L

0.050 moles of isopentyl alcohol = 0.050 × 22,400mL = 1120mL = 1100mL (to two significant figures)

5 0

3 years ago

Name three ways chemists keep track of amounts of substances

podryga [215]

By measuring them, by monitoring them, or by separating them.

4 0

4 years ago

A certain flexible weather balloon contains 3.5 L of helium gas. Initially, the balloon is in WP at 8500ft, where the temperatur

Advocard [28]

Answer:

$\large \boxed{\text{3.9 L}}$

Explanation:

We can use the Combined Gas Laws to solve this problem

$\dfrac{p_{1}V_{1} }{T_{1}} = \dfrac{p_{2}V_{2}}{T_{2}}$

Data

p₁ = 571.2 Torr; p₂ = 400 Torr

V₁ = 3.5 L; V₂ = ?

T₁ = 21.5 °C; T₂ = 6.8 °C

Calculations

(a) Convert the temperatures to kelvins

T₁ = (21.55 + 273.15) K = 294.70 K

T₂ = (6.8 + 273.15) K = 279.95 K

(b) Calculate the new volume

$\begin{array}{rcl}\dfrac{p_{1}V_{1} }{T_{1}} & = & \dfrac{p_{2}V_{2}}{T_{2}}\\\\\dfrac{\text{571.2 Torr $\times$ 3.5 L}}{\text{294.65 K}} & = & \dfrac{\text{400 Torr} \times V_{2}}{\text{279.95 K}}\\\\\text{6.78 L} & = & \text{1.429V}_{2}\\\\V_{2} & = & \textbf{4.7 L}\\\end{array}\\\text{The new volume of the balloon is $\large \boxed{\textbf{4.7 L}}$}$

3 0

3 years ago

Read 2 more answers

Please Answer the Question

KengaRu [80]

Answer:

Explanation:

I think it is D

6 0

3 years ago

200 milliliters is equal to:

ehidna [41]

Answer:

0.2 Litres

Explanation:

There are 1000 milliliters in a liter so 200 millimeters is equal to (200/1000) 0.2 litres.

Not quite sure what type of answer you were looking for but I hope this hoped anyway!

7 0

4 years ago

Read 2 more answers