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
Sonbull [250]
3 years ago
12

what is the mass of a gold bar with the following dimensions" 30 cm X 10 cm X 10 cm if the density of gold is 19.3g/cm^3?

Chemistry
1 answer:
Lapatulllka [165]3 years ago
8 0

Answer:

Volume of the bar=10 X 4 X 5=200 cm^3

Mass=200 X 19.3=3,860 grams

Mass=3.86 Kilograms

Explanation:

You might be interested in
A solution at ph 10 contains __________ than the same amount of solution at ph 8.
Sindrei [870]

100 times less H+

A solution at ph 10 contains<u> </u><u>100 times less H+</u> than the same amount of solution at ph 8.

<h3>The pH scale: How does it function?</h3>
  • The pH scale determines how acidic or basic water is.
  • The range is 0 to 14, with 7 representing neutrality.
  • Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7.
  • In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.

<h3>How does the pH change when two acids are combined?</h3>
  • An acid's strength increases with the quantity of hydrogen ions it releases.
  • The pH of the strong acids is between 1 and 2.
  • We may observe that there is no response when two acids of the same strength are combined.
  • It's because the end product will be neutral and the pH won't change.

<h3>How is pH value determined?</h3>

There are two ways to measure pH:

  • colorimetrically with indicator fluids or sheets
  • electrochemically with electrodes and a millivoltmeter for greater accuracy (pH meter).

To learn more about pH visit:

brainly.com/question/491373

#SPJ4

8 0
2 years ago
If you want to prepare 80.0 mL of 4.00M acid ,How many mL of 12.4 M HCl are required ?
Oksi-84 [34.3K]

M_{A}V_{A}=M_{B}V_{B}\\(80.0)(4.00)=V_{B}(12.4)\\V_{B}=\frac{(80.0)(4.00)}{12.4} \approx \boxed{25.8 \text{ mL}}

5 0
2 years ago
Baby polar bears learn how to hunt for fish and seals by watching their mother do it.
adoni [48]

Answer:

A

Explanation:

they watched there mother

6 0
4 years ago
Which element is a nonmetal?
babunello [35]

Answer:oxygen

Explanation:

6 0
3 years ago
Read 2 more answers
If you have 10,000 grams of a substance that decays with a half-life of 14 days, then how much will you have after 56 days?
Crank

Answer: 625 grams

Explanation:

14 goes into 56, 4 times.

10,000÷2=5,000 - first half life

5,000÷2=2,500 - second half life

2,500÷2=1,250 - 3rd half life

1,250÷2= 625 - 4th half life

Note: don't type "grams" after 625, just type "625".

5 0
2 years ago
Other questions:
  • The atmosphere is composed of several gases. The gas which is present in the largest quantity is:
    11·2 answers
  • TYPE OUT EXTREMELY NEATLY PLEASE AND SHOW ALL YOUR WORK. Use significant figures where appropriate
    13·1 answer
  • You have 1.2 L of air in a balloon 175 K. what is the new volume of the balloon when it is heated to 245 K
    13·1 answer
  • We could avoid a large increase in temperature if greenhouse emissions peaked by the year of ?
    12·2 answers
  • Ammonia, NH3, is used as a refrigerant. At its boiling point of –33 oC, the standard enthalpy of vaporization of ammonia is 23.3
    12·1 answer
  • What force pulled the solar system together out of a cloud of gas and dust
    8·1 answer
  • PLEASE HELP!!!
    13·2 answers
  • URGENTTTTT What is the correct formula when Al+3 combines with CrO4-2
    15·1 answer
  • Temperature has no significance during the calculation of numerical .why?? <br>^_^​
    12·1 answer
  • Use Appendix C to choose the solution with the higher pH:0.1MSn{NO₃)₂ or 0.1MCoNO₃)₂
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!