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
Basile [38]
3 years ago
14

A company is testing drinking water and wants to ensure that ca content is below 155 ppm. What is the maximum amount of Ca that

would be allowed in a 890 g of water.
Chemistry
1 answer:
BabaBlast [244]3 years ago
7 0

Answer:

138 mg

Explanation:

A company is testing drinking water and wants to ensure that Ca content is below 155 ppm (= 155 mg/kg), that is, <em>155 milligrams of calcium per kilogram of drinking water</em>. We need to find the maximum amount of calcium in 890 g of drinking water.

Step 1: Convert the mass of drinking water to kilograms.

We will use the relation 1 kg = 1000 g.

890g \times \frac{1kg}{1000g} =0.890kg

Step 2: Calculate the maximum amount of calcium in 0.890 kg of drinking water

0.890gH_2O \times \frac{155mgCa}{1kgH_2O} = 138mgCa

You might be interested in
Help meeeeeeeeeeeee its impossibleeeeee
fredd [130]

Answer:

Nice! If only....

Explanation:

6 0
2 years ago
Read 2 more answers
Which three factor are most important in determining the composition of ocean water
lina2011 [118]
<span>There are factors that are important to be determined for the composition of ocean water. First factor is the temperatue, by this you will be able to know the rate of evaporation of the sea. Next is the salinity, through this you will be able to know salty the sea is which will help you identify the last factor- density. The density is the most common because when there is more salt in the sea, it is less dense.</span>
6 0
3 years ago
Read 2 more answers
What are Storm clouds? how are they different from other types of clouds?
goblinko [34]
Cumulus, stratus, and cirrus, there's many more but these are the main ones ^^
5 0
3 years ago
Read 2 more answers
Name the following compound: <br> C5Si7
skad [1K]

Answer:

Pentacarbon heptasilicide.

Explanation:

In order to name the following compound, we need to identify whether it is molecular or ionic.

Molecular compounds consist of non-metal atoms, while ionic compounds would have metal cations in their composition.

In the given compound, C_5Si_7, we have two non-metals, carbon and silicon, meaning we should follow the molecular compound naming rules. The rules involve using prefixes to state the number of individual atoms.

The two prefixes required here are 'penta' for 'five' to indicate 5 carbon atoms present and 'hepta' for 'seven' to indicate 7 silicon atoms present.

The first part of the name would be pentacarbon (notice that the standard name for the first element is used). The second part would be heptasilicide (notice that the second atom would have an ending of -ide followed by the standard beginning of silicon).

4 0
3 years ago
Answer the following questions for H2CrO4:
Sholpan [36]

If this molecule is one half of a buffer, then the formula of the second half of the buffer is M2CrO4 where M is a univalent metal.

<h3>What is a strong acid?</h3>

A weak acid is one that is able to ionize completely in solution. The acid called chromic acid H2CrO4 is not  able to ionize completely in solution.

We know that a buffer is composed of a weak acid and its salt or a weak base and its salt hence if the acid H2CrO4 is present in a buffer then the other half must be  salt of the acid.

If this molecule is one half of a buffer, then the formula of the second half of the buffer is M2CrO4 where M is a univalent metal.

Learn more about buffer:brainly.com/question/22821585

#SPJ1

7 0
2 years ago
Other questions:
  • Did an oxidation-reduction reaction occur in the reaction between copper sulfate and sodium sulfide?
    13·2 answers
  • The product of the reaction between the following substances was treated with h2o. Draw the final product.
    7·1 answer
  • write a balanced equation for the reaction between hydrogen peroxide H202 and Fe2+ to produce Fe3+ and H2O in acidic solution​
    15·1 answer
  • What is the mass of 3.01 X 1023 atoms of iron? (atomic mass of Fe=56)
    6·1 answer
  • What defines the mass number of an isotope? the sum of the neutrons and protons the sum of the neutrons and electrons the number
    6·1 answer
  • 25.0 grams of Iron (III) oxide reacts with 30.0 grams of Silver sulfate in a double replacement reaction. Find the
    13·1 answer
  • Can someone answer this for me and show proof I WILL MARK BRAINLIEST
    7·1 answer
  • Differentiate between homogenous and heterogeneous catalysis​
    13·1 answer
  • What is a object that produces heat by producing light please?
    6·2 answers
  • Butane is a common fuel used in cigarette lighters and camping stoves. Normally supplied in metal containers under pressure, the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!