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
Marina86 [1]
3 years ago
13

Calculate the density of an object with a mass of 58g and a volume of 20 mL. Enter

Chemistry
1 answer:
Sveta_85 [38]3 years ago
7 0

Answer:

D = 2.9 g/mL

Explanation:

Density = Mass over Volume

D = m/V

Step 1: Define

m = 58 g

V = 20 mL

D = unknown

Step 2: Substitute and Evaluate for Density

D = 58 g/20 mL

D = 2.9 g/mL

You might be interested in
In the unit 2 lab, what combination produced a brown bubbly liquid that looks like root-beer? (Select the two parts of the combi
LekaFEV [45]
Baking soda and chalk
6 0
4 years ago
You have 363 mL of a 1.25M potassium chloride solution, but you need to make a 0.50M potassium chloride solution. How many milli
maxonik [38]

Answer:- 544.5 mL of water need to be added.

Solution:- It is a dilution problem. The equation used for solving this type of problems is:

M_1V_1=M_2V_2

where, M_1 is initial molarity and  M_2 is the molarity after dilution. Similarly,  V_1 is the volume before dilution and  V_2 is the volume after dilution.

Let's plug in the values in the equation:

1.25M(363mL)=0.50M(V_2)

V_2=\frac{1.25M(363mL)}{0.50M}

V_2=907.5mL

Volume of water added = 907.5mL - 363mL  = 544.5 mL

So, 544.5 mL of water are need to be added to the original solution for dilution.

3 0
3 years ago
Calculate the mass percent of carbon (c) in carbon tetrachloride, (ccl4), if the molar mass of carbon tetrachloride is 153.8g.
baherus [9]
<span>mass percent of carbon (c) in CCl</span>₄ = mass of C/mass of CCl₄
                                                        = 12 x 100/153.8 = 7.8%


3 0
3 years ago
Read 2 more answers
A rigid 8.77L tanks contains 1.45 moles oxygen at 20°C. what is the pressure in atm?
alexdok [17]
1) use the formula PV=nRT
2) Plug in given values: P(8.77 L)= (1.45 mol)(0.0821)(293 K)
3) isolate P: P= (1.45x.0821x293)/(8.77)
4) solve: P=3.98 atm
5 0
3 years ago
If you have 30 g of carbon, 300 g of chlorine and 30 g of hydrogen to form chloroform, how many grams of chlorine and hydrogen a
alexira [117]

Explanation:

6×1.25×37.5= 281.5 g of chlorine

1×1.25×2= 2.5 g of hydrogen

8 0
3 years ago
Other questions:
  • A canister of acetylene has a volume of 42 l the temperature of the acetylene is 305 k and the pressure is 780 torr determined t
    14·1 answer
  • Rank the gases in the atmosphere in order from most to least abundant.
    13·1 answer
  • Name of alcohol that would produce 2 3-dimethyl-2-butene through dehydration?
    7·1 answer
  • The following reactions can be used to prepare samples of metals. Determine the enthalpy change under standard state conditions
    12·1 answer
  • What is the ground-state electron configuration of a neutral atom of cobalt? express your answer in condensed form, in order of
    8·1 answer
  • Where do diamonds come from?
    10·2 answers
  • Please help me asap! (brainliest)
    5·1 answer
  • A compound is 21.6% Mg, 21.4% C, and 57.0% O. What is the empirical formula of the compound? ​
    6·1 answer
  • What two terms are used to describe the temperature at which solids and liquids of the same substance exist at the same time?
    5·1 answer
  • PLEASE HELP!!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!