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4 years ago

BRAINLIESTTT ASAP!!! PLEASE HELP ME :))

Chemistry

1 answer:

lys-0071 [83]4 years ago

3 0

Answer:

Multiply 1.25 by 0.04 and divide the result obtained by 1,000

Explanation:

Since there is .04 oz in 1 gram, we take the 1.25 gram and multiply by .04.

Next, to convert per liter to per milliliter, we divide by 1,000.

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A 1.10 M HCl solution prepared from 190.0 mL of a 7.0 M HCl

IrinaK [193]

Answer:

1,209mL or 1.209L

Explanation:

For this equation you would use M1V1=M2V2

You would plug (1.10M)( XmL)=(7.0M)(190.0mL)

Then you would solve for X

XmL= $\frac{(7.0M)(190.0mL)}{1.10M}$

XmL- 1,209mL

8 0

4 years ago

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poizon [28]

Answer:

Mhmmm I Agree

Explanation:

Its Because I Strongly Agree

7 0

4 years ago

PLEASE ANSWER FAST!!!!!!

lara31 [8.8K]

Answer:

A by 0,5 cubic centimeters

Explanation:

If you use the density equation:

$d=\frac{mass}{volume}$ → $v=\frac{m}{d}$

For A:

$v=\frac{9[g]}{10g/cm^3} =0,9[cm^3]$

For B:

$v=\frac{4[g]}{10g/cm^3} =0,4[cm^3]$

Doing the difference A-B=0,5 cubic centimeter

3 0

4 years ago

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A cylindrical specimen of some metal alloy having an elastic modulus of 129 GPa and an original cross-sectional diameter of 4.4

miss Akunina [59]

Explanation:

The cross-sectional area of the specimen is calculated as follows.

$A_{o} = \frac{pi}{4} d^{2}$

= $\frac{3.14}{4} \times (\frac{4.4}{1000})^{2}$

= $1.5197 \times 10^{-5} m^{2}$

Equation of stress is as follows.

$\sigma = \frac{F}{A_{o}}$

And, the equation of strain is as follows.

$\epsilon = \frac{\Delta l}{l_{o}}$

Hence, the Hook's law is as follows.

E = $\frac{\sigma}{\epsilon}$

E = $\frac{\frac{F}{A_{o}}}{\frac{\Delta l}{l_{o}}}$

= $\frac{F \times l_{o}}{A_{o} \times \Delta l}$

or, $l_{o} = \frac{E \times \Delta l \times A_{o}}{F}$

= $\frac{129 \times 10^{9} \times \frac{0.48}{1000} \times 1.662 \times 10^{-5}}{1570}$

= 0.6554 m

or, $l_{o}$ = 655.4 mm

Thus, we can conclude that the maximum length of the specimen before deformation if the maximum allowable elongation is 0.48 mm is 655.4 mm.

5 0

4 years ago

Which of the following is a pure substance that cannot be broken down into simpler substances by chemical means?

kifflom [539]

Answer: c

Explanation:

Chemical element, please if you now the answers of my two last questions help me

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3 years ago

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