1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
snow_lady [41]
3 years ago
14

If the density of a metal bar is 3.47 g/mL and volume is 30 mL, calculate the mass of the metal bar in grams (g). Show the steps

to answering this equation.
Chemistry
1 answer:
Hitman42 [59]3 years ago
7 0

Answer:

m=104.1g

Explanation:

Hello,

In this case, considering that the density is considered as the quotient of the mass and volume:

\rho =\frac{m}{V}

We can easily compute the mass by solving for it as follows:

m=V*\rho =30 mL*3.47g/mL\\\\m=104.1g

Best regards.

You might be interested in
What is the pH of a solution which is 0.600 M in dimethylamine ((CH3)2NH) and 0.400 M in dimethylamine hydrochloride ((CH3)2NH2C
Viefleur [7K]

Answer:

pH = 11.05

Explanation:

It is possible to answer this question using Henderson-Hasselbalch formula:

pH = pka + log₁₀ [A] / [HA⁺]

Where A in this case is weak base (dimethylamine) and conjugate acid (HA⁺) is dimethylamine hydrochloride.

As Ka= Kw / Kb = 1x10⁻¹⁴ / 7.4x10⁻⁴ = 1.35x10⁻¹¹ And pKa is -log Ka = <em>10.87 </em> pH of the solution is:

pH = 10.87 + log₁₀ [0.600] / [0.400]

<em>pH = 11.05</em>

<em></em>

I hope it helps!

3 0
3 years ago
What is the pH of a 6.4*10-10 m oh- solution?
egoroff_w [7]
PH: 4.80617997
pOH: 9.1938200
[H+]: 1.562
[OH-] 6.4E-10
Acid
8 0
3 years ago
Can anyone fill in the answers?
Arte-miy333 [17]
Hi, P.S. The atomic number will always be the same as the number of protons...

6 0
3 years ago
Why does the TLC tank need to be covered?
photoshop1234 [79]

Answer:

The reason for covering the container is to make sure that the atmosphere in the beaker is saturated with solvent vapour. Saturating the atmosphere in the beaker with vapour stops the solvent from evaporating as it rises up the paper.

5 0
3 years ago
Read 2 more answers
n a coffee cup calorimeter, 100.0 mL of 1.0M NaOH and 100.0 mL of 1.0M HCl are mixed. Both solutions were originally at 24.6 deg
RoseWind [281]

Answer:

Explanation:

mass of the solution = volume x density = 200 x 1 = 200 gm

heat absorbed = m x s x Δ t , s is specific heat , Δt is rise in temperature

= 200 x 4.18 x ( 31.3 - 24.6 )

= 5601 J .

This is the enthalpy change required.

3 0
3 years ago
Other questions:
  • Help with my math homework please (didn't mean to put chemistry)
    6·1 answer
  • opnTens Location: Test: Question 1 of 40)ToolsThermal energy travels through space from the Sun to Venus. This is an example ofA
    8·1 answer
  • Combustion of hydrogen releases 142 j/g of hydrogen reacted. How many kj of energy are released by the combustion of 16.0 oz of
    14·2 answers
  • In a balloon with a volume of 21.55 cups, what is the volume of this balloon in L?
    12·1 answer
  • May somebody help me this question ? Please
    12·1 answer
  • How many atoms of carbon are in 24 grams of carbon?
    10·1 answer
  • Which element has atoms with only one completely filled principal energy level
    6·1 answer
  • How many minutes would be required to electroplate 25.0 grams of chromium by passing a constant current of 4.80 amperes through
    13·1 answer
  • How many moles of sodium atoms do you have if you have 5.60 ~
    7·1 answer
  • Tin-126 has a half life of 100,000 years. How many years does it take to
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!