subject

Chemistry, 10.11.2020 17:20 milhai0627a

A sample of hydrate sodium carbonate has a mass of 71.5 g. after heating, the anhydrous sodium carbonate has a mass of 26.5 grams. Calculate the % water.

ansver

Answers: 3

Show answers

Another question on Chemistry

question

Chemistry, 21.06.2019 15:00

The density of a planet is 0.69 g/cm3 (density of water is 1.0 g/cm3). which of the following planets might this be? a. mercury b. venus c. saturn d. mars

Answers: 3

question

Chemistry, 22.06.2019 03:50

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Answers: 3

question

Chemistry, 22.06.2019 11:30

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

Answers: 3

question

Chemistry, 23.06.2019 05:00

1. true or false: minerals are inorganic. true false 2. inorganic means that something has never been found alive 3. halite is another name for and is a mineral with a cubic crystal pattern. table salt rock salt

Answers: 1

You know the right answer?

A sample of hydrate sodium carbonate has a mass of 71.5 g. after heating, the anhydrous sodium carbo...

Questions

question

Physics, 04.03.2020 23:22

Consider the following first order dynamic system: 78 +21x = 36 uſt) a) Find the transfer function from U(s) to Y(s). b) What is the system time const...

question

Chemistry, 04.03.2020 23:22

Suppose a reaction has the equilibrium constant at a particular temperature. Will there be a large or small amount of unreacted starting material pres...

question

Physics, 04.03.2020 23:22

After you are done with the initial measurements (in other words, have completed Step #10). how would you verify that your puffs haven't discharged to...

question

Computers and Technology, 04.03.2020 23:22

Winston Community College is a commuter school with a population of 725 students. Although its students come from 4 different states, the college has...

question

Business, 04.03.2020 23:22

If the goal of public spending is to shift the production possibilities curve of an economy outward, which of the following proposals would seem most...

question

Health, 04.03.2020 23:22

If there is one heart available for transplant and healthcare professionals must make the decision as to who gets the heart by treating everyone fairl...

question

Computers and Technology, 04.03.2020 23:22

Write an if-else statement with multiple branches. If year is 2101 or later, print "Distant future" (without quotes). Otherwise, if year is 2001 or gr...

question

Business, 04.03.2020 23:22

You are evaluating an investment that requires $1,000 upfront, and pays $100 at the end of each of the first 2 years, and an additional lump-sum of $2...

question

Mathematics, 04.03.2020 23:22

(a) Assume the equation x 5 At3 1 Bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of...

question

Physics, 04.03.2020 23:22

A 9-year-old has just fallen off the monkey bars. She has obvious deformity to her mid forearm. How should the radiographer care for her when taking x...

question

Business, 04.03.2020 23:22

Kenneth teaches chemistry. He wants to show in a presentation how electrons travel around the nucleus of an atom. He wants to have the word “electron”...

question

History, 04.03.2020 23:22

During the first eight weeks after fertilization, a developing human is known as an embryo. Please select the best answer from the choices...

question

Mathematics, 04.03.2020 23:22

If x = 3 /4 and y = 8, consider the sum of x and y. Which statement describes the sum of x and y? A) The sum of x and y is a rational number. B) The s...

question

Biology, 04.03.2020 23:22

Environmental sustainability is the responsible interaction with the environment to avoid depletion or degradation of natural resources. If we exploit...

question

Mathematics, 04.03.2020 23:22

Jeremy Buys the New York Times from a new stand for $2.50 a day (skipping Sundays) and spends $30 per week on gasoline for his car (assume there are 5...

question

English, 04.03.2020 23:22

Which statement is not a characteristic of the philosophy of stoicism? A) The gods determine a person’s fate, which must be accepted.

question

Engineering, 04.03.2020 23:22

A tire-pressure monitoring system warns you with a dashboard alert when one of your car tires is significantly under-inflated. How does this pr...

question

Social Studies, 04.03.2020 23:22

In the context of reinforcement theory, with , consequences follow a behavior after different times, some shorter and some longer, that vary around a...

question

Mathematics, 04.03.2020 23:22

Someone please help I don’t understand this math questions and i need it.

question

Social Studies, 04.03.2020 23:22

What did Descartes discover in the 2nd Meditation that he cannot doubt? Explain why he cannot doubt this. What is the latin expression for his famous...

More questions: Chemistry Another questions

Questions on the website: 13722363