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
Zolol [24]
3 years ago
8

1. What volume will 0.710 moles of nitrogen gas occupy at STP?

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
8 0

Answer:a b c

Explanation:

You might be interested in
An electric current can be measured with a device called?
worty [1.4K]

Answer: Ammeter

Explanation:

7 0
2 years ago
Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chloride are needed to have 100.mg of Na present? G
seraphim [82]

<u>Answer:</u> The mass of sodium chloride solution present is 0.256 grams.

<u>Explanation:</u>

We are given:

39.0 % of sodium in sodium chloride solution

This means that 39.0 grams of sodium is present in 100 grams of sodium chloride solution

Mass of sodium given = 100 mg = 0.1 g     (Conversion factor:  1 g = 1000 mg)

Applying unitary method:

If 39 grams of sodium metal is present in 100 grams of sodium chloride solution

So, if 0.1 grams of sodium metal will be present in = \frac{100}{39}\times 0.1=0.256g of sodium chloride solution.

Hence, the mass of sodium chloride solution present is 0.256 grams.

8 0
3 years ago
What are more than 5 abiotic things in the desert?
Anna71 [15]
Abiotic things are like rocks...dirt...water vs. biotic is living things or something that was living
7 0
3 years ago
Read 2 more answers
In an experiment, hydrochloric acid reacted with different volumes of sodium thiosulfate in water. A yellow precipitate was form
morpeh [17]

Answer:

The time taken for the cross to become invisible decreases.

Explanation:

We know that one of the factors affecting the rate of reaction is the concentration of reactants. From the collision theory, we know that the higher the concentration of reactants, the greater the possibility of effective collision between reactants leading ultimately to an increase in the rate of reaction. Increase in the rate of reaction implies that the reaction takes a shorter time to reach completion.

In the case of the reaction shown in the question, the point when the reaction is completed is observed by the time take for the cross mark to become invisible. If we look at the given data closely, we will notice that the volume of acid was held constant, the volume of thiosulphate was increased gradually while the volume of water was decreased accordingly. This implies that the concentration of the reactants was increased. Decreasing the volume of water increases reactant concentration.

As explained above, increase in reactant concentration increases the rate of reaction. Hence, the rate of reaction of the acid and thiosulphate increases as reactant concentration increases and the cross mark becomes invisible faster. This implies that in the last column for time taken for the cross to become invisible, the values of time decreases steadily as concentration of reactants increases.

5 0
3 years ago
Which of these is true about the mantle?
yanalaym [24]

Answer:

c.

Explanation:

it moves in slow convection currents, hope this helps!

6 0
3 years ago
Other questions:
  • The primary difference between a scientific theory and a scientific law is that a law:
    15·1 answer
  • One of the main forces driving plate tectonics is the dissipation of heat from the mantle, through convection or large scale upw
    9·1 answer
  • sample of saline contains 45 ml of saline in 128 ml of water. What is the percent by volume of the solution?
    8·1 answer
  • Jeff’s father is installing a do-it-yourself security system at his house. He needs to get a device from his workshop that conve
    15·1 answer
  • Energy from the Sun arrives at the top of the Earth's atmosphere with an intensity of 1.1 kW/m2 . How long does it take for 1.91
    11·1 answer
  • How does the vapor pressure of water at 10 c compare with its vapor pressure at 50 c?
    11·1 answer
  • A second grade student approaches you and says that she learned that a lunar eclipse is the result of the Earth blocking the sun
    5·2 answers
  • You're going on a plane from Alaska to Florida and you're taking your bike. It's the middle of the winter. You fill up your tire
    15·1 answer
  • For a second order reaction, if [A]^-1 is plotted vs. time, which corresponds to the slope of the plot?
    10·1 answer
  • If 100 ml of 3. 0 m solution were diluted to 250 ml, what would the concentration be?.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!